Model Boat Mayhem

The Shipyard ( Dry Dock ): Builds & Questions => Navy - Military - Battleships: => Topic started by: Backerther on February 01, 2025, 08:32:11 am

Title: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on February 01, 2025, 08:32:11 am
Hi Allen A
Have you been enjoying Lindberg PT109 and watching this forum still now??

I have the 4th kit available here for another conversion project since I got it at a far less price here in Japan than in foreign countries. Moreover, this hull of the kit is so suitable and easy to convert to a RC scale-like fast vessel as you know well. O0 
The hull is not necessarily symmetrical but seaworthy and has shown a stable characteristics on the water. O0
Oh, NO! I'm not a salesman of the Lindberg company at all but a mere salesman of a RC scale fast boating. {-) {-) {-)

The kit this time is injection moulded one with white unusually as shown below.
I just have started to think what next I should build with this versatile kit/hull. This stage is also interesting if some good concepts should arise in my mind.

The hull size is fundamentally large enough to install 550 class of motor and 5000mAh 3S lipo by which most of fast scale boats
could be boosted away straight forward so easily on the lake. O0 :embarrassed: :-)) :-))
On the other hand, it's small enough to carry to the boating site and to keep on the shelf. O0 :-))

One more merit I like for using it on the water is that the boat is not so detailed originally unlike italeri kits. {-) %) :-))
What next...what next ...what next is such a happy time for me, an old man to go on with in a spare time.. O0
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on February 06, 2025, 01:28:22 am
I just started to assemble a couple of screw shaft supports by glueing two halves.
And I sanded the corners of the supports to be round, though no indication was made about this point in the assembly manual.
And I also provisionally fitted the relating parts to the hull to confirm if they should go well and the result was so so.. O0

Screw props are not what are included in the kit, needless to say.
I'm going to make a couple of screw shafts and stern tubes later, not because they are low quality for RC boating but because
they are made in inch standard, namely 3.17mm..as well as a bit short for my intended configuration. O0 {:-{
I will build this boat by mm standard and it will be 3.00mm in this case.
One of the difficult matters is to cut the threads precisely on each one end of screw shafts by hands, not by lathe that I do not have.. <:(
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: swiftdoc on February 06, 2025, 06:02:48 am
Hi Kiyo, I just came across your new build log and will follow that with great interest!
Arno
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on February 06, 2025, 11:11:17 am
Thank you for your comment, Arno. :-))
This boat is scheduled to be powered by a couple of brushed motors that I have kept for my PT-109JP (jet boat).
And tank type steering is also scheduled to be done by an ESC for the RC tank.
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on February 08, 2025, 04:37:03 am
Not good !!.....but... sufficiently available as screw prop shafts for my application of a fast patrol boat.!! {-) :embarrassed: :-))
Anyhow, it's soooooooo difficult to make neat threads on 3mm brass rods by a die regardless of prior trials for more than 7 rods. <:( <:(
I have found myself to be so clumsy again by this work...!! {-) {-) :-X <:( <:( {:-{
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Circlip on February 08, 2025, 10:57:14 am
 Different grades of brass give different results. Soft brass - poor, Hard brass - good.


  Why brass? Stainless steel better.


  Why such a long thread?


 Regards  Ian.


 As an addendum, thread length required is only 1.5 X D  so 4.5mm or 9mm if  4.5 thick locknut.
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on February 08, 2025, 12:53:42 pm
Hi Circlip,
So nice to have your comment and opinion.
What you have mentioned in the first paragraph is truly correct. :-))

I have used stainless steel rods for my full-fledged RC boats while brass rods were used for pla-model converted model boats.
That's because the brass rods were good enough for screw shafts and consequently made nice jobs in such pla-model conversion boats as to sail on the lake so powerfully, as often posted in this forum with pics and videos as seen below.

Bing 動画 (https://www.bing.com/videos/riverview/relatedvideo?&q=Lindberg+PT-109+resulted+in+success&&mid=FFF6B2C945EB9F91B3E6FFF6B2C945EB9F91B3E6&&FORM=VRDGAR)

In other words, stainless steel rods generally are over-specification in my understanding for such toyish ? RC boats... O0 :embarrassed:

The length of threads is simply and mainly from the thickness of the prop holes which will be shown later in this thread.

Kiyo
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: JimG on February 08, 2025, 07:43:17 pm
Brass shafts work quite well if you don't do too much running of the model. The Billings Smit Nederland used chromed brass shafts running in brass bearings. I managed to wear through the chrome plating and brass on brass meant that the shafts started to wear at the bearings becoming a loose fit and leaking. The shafts are pretty near horizontal in the hull. I ended up replacing them with steel shafts with a sealed ball race at the inside end of the shaft tube. Admitedly the boat had a lot of running time on it, it had taken part in two 24 hour sails by this stage and went on to do two more before being retired.
Jim
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on February 09, 2025, 02:34:24 am
Hi JimG
I'm so glad to have your nice comment and information on brass material based upon your precious experience.!! :-))

I wonder how many times of sailing most RC boaters are enjoying in each year normally once completed, namely sailing times or its total hours throughout a year or its active life to each boat/ship...?? O0 :embarrassed:
IN MY CASE, 3-4 times a year at most in each boat and less than 10 minutes (one Battery capacity) each sailing with 4-5 times a day...

Brass screw shafts haven't made me nervous at all about wearing issue for my pla-model conversion boats so far.
Instead, I have paid much attention to set accurate alignment and sufficient lubrication with care once completed.
Therefore, they are generally so calm on the water. :-))
Lubrication seems to have made a good work with assistance of water to prevent from wearing...though some drops of water
RARELY found in the hull after sailing and I'm not sure where it is from, either the deck or stern tube.??!!! {-) {-) {-)

Pics below (1 through 3)are some of my pla-model converted good runners with brass shafts on the water. :-)) :-))
Pics 4 through 7 are my new and old flag ships with stainless steel shafts. :-)) :-))
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on February 10, 2025, 02:36:35 am
Well, getting back to my mainstream of this thread, cheap and simple home-made screw set is now complete as in the pics.
But the performance is not so cheap as its cost as in the pic.  byuuuin!!!  %% %%
A 3mm brass pipe was cut to length for stern tubes which mated well with the brass shafts.
Grease filling posts are supposed to attach later, needless to say. O0

Being unsatisfactory threads to me , the screw shafts and props are well mated causing no "laughing revolution" actually.
In this sense, I may possibly say that threads making work has been done successfully... O0 {-) %% :-))

I can go further to the next stage smoothly surpassing difficult work of thread making. %% :-))
Title: Re: Lindberg 1/32 PT-109 MTB-like fast patrol boat of JP Coast Guard
Post by: Backerther on February 12, 2025, 02:49:52 am
And I just sat the screw sets in the hull together with associated parts to see if they should go well for getting accurate
alignment with the motor shafts later to be set. Almost of all, they were so so this time too for an old pla-model kit. O0 {-) %%
Title: Re: Lindberg PT-109 MTB-like fast patrol boat of JP Coast Guard
Post by: Backerther on February 14, 2025, 05:19:06 am
And I made a couple of grease filling posts and also cutouts on both stern tubes as in the pics.
Thickness of the grease filling post to mate with stern tube is 0.5mm. A bit nervous to drill a hole precisely in the very center of the brass pipe. O0
The filling post at its lower position will play a role of a support for the stern tube. :-)) 
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: swiftdoc on February 14, 2025, 05:58:44 am
Job well done, Kiyo :-))  I understand that drilling the holes in the centre was a demanding task!
Title: Lindberg 1/32 PT-109 MTB-like fast patrol boat of JP Coast Guard
Post by: Backerther on February 14, 2025, 11:10:03 am
Arno,
I'm so glad to have your friendly comment and also to have drilling work understood about how troublesome it was for a thin and slender brass pipe. :D
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on February 16, 2025, 04:09:43 am
I completed fully a couple of screw propeller sets after gluing grease filling posts as seen in the pics.
I easily imagine that many or most modellers may say or think why not by soldering them..??

From my experience to fix this portion, this method is sufficient, secure, easy and simple to block water ingress while keeping a
good strength because of a quality two-part epoxy and construction of the grease filling post. :-))

Soldering is generally a bit nervous to use, locate precisely and neatly such parts as these during the work to me... {:-{
The worst is fear of flow of melted solder into the stern tube....to me who is clumsy.. {-) {-) {-) <:( <:( <:(
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on February 18, 2025, 04:13:21 am
For next thing, I made a couple of heat blocking spacers to be set between the motors and motor mount made of soft plastic.
The motors are imagined from my experience to get easily hot (as they also indicate on their cans as caution) when running at speed.
After that, I just made some drilling works on the mount (originally a bulkhead) to set the motors after checking precise locations
of the holes for motor shafts using a simple template. I'm going to use as many parts of the kit as possible this time. :D :-))
Finally, I assembled the motors and the mount provisionally to see if they should go well as previously marked on the mount..
Needless to say, I intend to set water cooling coils around the motors later for the maximum cooling effect. O0 ;)
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on February 20, 2025, 03:35:27 am
In the next place, it's one of the most nervous and troublesome works for especially building a fast Rc boat in my case... {:-{ :embarrassed:
Yes,! Seeking for the best positions of motors/motor mounts for the best alignment between motor shafts and screw prop shafts. :embarrassed:  Unless this works or adjustment are nearly perfect, an intended fast RC boat will be a slow sailing boat unintentionally on the lake later.. <:( <:( {-) 
In addition to the above, I also confirmed a good accessibility into the hull which is also very important for practical RC boat in terms of service of coupling, grease filling, tiller arms and steering servo as well as motor/ESC change. :-)) :-)) :-))

Finally, I checked motor revolution at 1.2V battery to see if it is smooth and calm at even low voltage. They went very well. :-))
By this test I understand that a good alignment may have been properly done perhaps as a result. :-))

Pic 1-3 show that tips of screw prop shafts are about to be inserted to couplings. Nearly OK about alignment... O0
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: swiftdoc on February 20, 2025, 06:07:02 am
All looking very nice and crisp, Kiyo! What kind of couplings are these? Is the black ring material flexible in case of minor misalignment?
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on February 20, 2025, 09:12:03 am
Arno,

Thank you for a quick comment.
Yes, they are very good couplings for absorbing comparatively large mis-alignment. They are called "flexible beam coupling".
And "black ring" as you have understood is just a coiled slit by which a certain level of mis-alignment could be absorbed.
Mine is made of aluminum and I adopted them for this project of a fast patrol boat of Japan Coast Guard.
Less than 4 USD each including shipping here in Japan. :-))

Kiyo
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on February 21, 2025, 03:35:44 am
Just for reference to let you know how this kind of flexible beam coupling is tough for a fast RC boat which I have used actually in my second PT-109 although the material is a bit tough plastic. :-))
In addition, the coupling is smooth and calm in running. O0

The pics below show the test running of the motors and couplings leading to confirming if the alignment is properly done.
In this case, the screw prop rotated with 2000 RPM at 1.3V Nimh battery.!!!  Perfect for a practical RC boat!!!  :-)) :-))
And the sailing pic and video attached endorsed this setting to be OK and the quality of the coupling on our local lake actually. :-)) :-))

Bing 動画 (https://www.bing.com/videos/riverview/relatedvideo?&q=lindberg+pt-109+resulted+in+success&&mid=FFF6B2C945EB9F91B3E6FFF6B2C945EB9F91B3E6&&FORM=VRDGAR)     <----Over 40 knots,? faster than the real boat..?? {-) {-)  A MTB had best run fast and thence is worth being called MTB.??!! O0 {-)
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: swiftdoc on February 21, 2025, 06:06:39 am
Many thanks for your photos, Kiyo. I was mistaken not having recognized that there are slits instead of rubber. I am using the Misumi couplings in my Falcon which runs at very low revs though, compared to your setup. You surely will add some supports to the shafts as in your previous builds I guess….
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on February 21, 2025, 10:13:05 am
Hi Arno,

Misumi's disk coupling is, so far as I know from my past experience, the best in any aspects to use for fast and tough revolution
of motors and thence I have used such disc couplings for my full-fledged RC boats as in the pics.
However, only one unsatisfactory with me is the price.!!! Therefore, I have used such low-cost flexible beam couplings as in the comparatively light weight pla-model fast boats with brushed motors.  :-))
This coupling is specified to be capable of 24000RPM in the product specification by which I have chosen to use for my large lake going brushless fast boats. Calm, reliable and tough but expensive! {-) {-) {-) :-)) :-)) :-))
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Martin (Admin) on February 21, 2025, 10:49:05 am

Misumi's disk coupling :
  https://uk.misumi-ec.com/vona2/mech/M1001090000/?ppc_keyword=flexible%20coupling%20types&msclkid=8f547be7c9501f8914bb1c5f90b0cd33&utm_source=bing&utm_medium=cpc&utm_campaign=ba-en-generic-keywords-rotarytransmission-uk&utm_term=flexible%20coupling%20types&utm_content=en-generic-flexibleshaftcouplings-new-uk

Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on February 21, 2025, 11:39:23 am
And this is the very evidence that shows true value of Misumi coupling in my Najade.  :-))
24100RPM with 3S lipo for some seconds for fear of excessively heated condition of the motor!!!!!!!      This motor has to be water-cooled.!!!  O0 {-)

Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on February 23, 2025, 11:11:32 am
Provisional setting was done in a good result so that I finally fixed the drive rain permanently with epoxy for stern tubes
while motor mount with a glue gun as I have ever applied successfully with previous pla-model fast boats.  :-)) :-))

With this work, I have turned the first corner of this simple pla-model boat at last.!!! %% O0 
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: swiftdoc on February 24, 2025, 06:04:19 am
aha, the shaft tubes sit so low in the hull that you can use the lubrication tube ends as supports, clever Kiyo :-))
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on February 24, 2025, 09:01:57 am
Thank you so much for your compliment on my set-up of stern tubes, Arno. %% :embarrassed: :-))
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on February 25, 2025, 02:59:56 am
After fixing drive train permanently, next step is the study where to set the radio gears considering the rough balance of the hull/boat that should leave some allowance to be adjusted later to get the best and final level of balance, needless to say. O0


In order to set the radio gears, I made a couple of decks for them out of plywood after 3 times of brief urethan coatings. 
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on February 28, 2025, 05:35:52 am
I still have lots of Rc airplane parts I used to use for building many balsa-kit planes when I was much younger.
I have used some for the steering linkage work of this fast patrol boat. It was very easy, neat and secure to set the linkage. :-))
I used R-clips to detach easily the rudders from the hull for a good maintenance and exchange of screw shafts, couplings and the like. O0
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on March 02, 2025, 01:21:47 am
And I installed a steering servo and linked with the bell crank.
So far as this is a pla-model RC conversion project, it's generally easy to go with less stress which is quite good spiritually for me, the aged RC modeller.!! One by one and step by step as a daily routine activity..!!? O0 {-) {-) {-)
What is better, the building work could be done precisely, slowly and neatly with an affluent time, as it were a snail's pace. {-) {-)  An old man can normally afford the time to spend whatever he wishes to do as far as he is healthy.!  {-) O0 :-))
Yes, no need to hurry it up at all. %% :embarrassed:
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: swiftdoc on March 02, 2025, 07:59:22 am
Wise words, Kiyo {-)  Personally being self-employed, I lack time, patience I have….
 How do you fix the servo, it should be removable in case of any malfunction ok2 ?
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on March 02, 2025, 01:09:51 pm
Hi Arno,
I just simply used double-sided tape which you know well is strong enough to fix while easy to remove, not to say stronger than
epoxy or CA and the like. O0 {-)
The same thing could be said to a glue gun used this time for fixing the steering servo plate.
This is so called in English "Right people, right place"?  :embarrassed: %% In Japanese,「適材適所」that means "Proper material, proper place" :-))


Kiyo
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on March 04, 2025, 07:04:10 am
Next step is to set a couple of water pick-ups. :embarrassed:
This time, I changed the shape and locations of inlets of the pick-ups as seen below different from my traditional linear type just for an experiment. Theoretically this case may be more effective to suck the water although my traditional way of setting did not
show any problems at all in the past. O0 {-) %%   Both have merit and demerit mutually as often seen in everything in life. %% 
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: jaymac on March 04, 2025, 11:54:29 am
Why only 2Props
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on March 05, 2025, 01:55:03 am
Due to many reasons and merits of this "only 2props" for my imaginary fast patrol boat model of Japan Coast Guard.! :-))
One of these is indispensable necessity for high speed capability as seen in the following You-tube video and proved/judged to be 100% OK by me with the "only 2props" in the video of another Lindberg boat. :-))  Byuuuuuuunnn! O0 %%
A MTB model had better be fast than slow and enjoyable to operate it on the water, especially on the large lake, hadn't it.?! O0

Bing 動画 (https://www.bing.com/videos/riverview/relatedvideo?q=lindberg+pt-109+resulted+in+success&mid=FFF6B2C945EB9F91B3E6FFF6B2C945EB9F91B3E6&FORM=VIRE)
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on March 07, 2025, 08:06:16 am
And cooling water tubes were set in the following style. :embarrassed:
Water drain has to be secured the faster the boat runs, the more water the boat should drain powerfully, hasn't it ?! :embarrassed:
In the bathtub test, the drained "water" became hot rather than warm at slow stream... {-) {-) {-)  within a few minutes.. :-X
Cooling issue is very very critical and fatal especially for a fast moving vehicle unless properly done regardless of its size, isn't it.??!! O0 :kiss:

By the way, I have a good and bitter memory of the water cooling....
This may digress from the mainstream of this build log, I have ever been annoyed intensively many years before by my 1/10 scale RC nitro-powered  tank made of mainly 1mm thick steel on cruising in the mid-summer. YES, overheat problems of the engine set in the too hot circumstances with no wind flow inside the hull enclosed by hot steel body...!!!!!

However, after much thought I decided to adopt an enforced water cooling system equipped with a radiator with a fan, water tank and circulating pump. Everything was solved perfectly and the tank continued to run as far as fuel tank came out empty for 30minutes in the mid-summer day.!!!!!!!! :-)) :-)) :-))
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on March 10, 2025, 02:44:41 am
Cooling water tubes were set and the next is to get it ready for so called bathtub test to see if the balance of the boat on the water is Ok as well as motor revolution. O0
For this preparation, I checked and decided the balance on the desk briefly followed by the grease filling into the stern tubes by
a grease gun. The screw shafts and stern tubes were comparatively tight in this case that very little amount of grease did OK. O0

Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: frogman3 on March 12, 2025, 11:25:49 am
HI Backearther just been lookin through your build an you have done a very nice job Sir  very well done
chrisb :-))
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on March 13, 2025, 03:45:57 am
Hi Chrisb,
So nice to see you back on MBM here with energetic posts at the same time I have felt so easy to know that you have been
fine during post-free holidays.!!
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on March 14, 2025, 11:09:33 am
And next step is....yes, to add a very very important parts for the hull to make sharp and neat waves alongside the hull especially
at speed as seen in the pics.!! :-)) :-)) :-))  These bilge keels have made nice jobs so far for my fast boats on the water especially at speed when steering. ;) O0 
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on March 16, 2025, 06:21:33 am
So far as this is a RC powered boat to sail actually on the water, so I have thought this boat should be built to secure a good maintenance ability and any service whatever may happen in the hull.
Even the motors can be so easily removed in so short a time by this layout, needless to say. O0 O0
From this point of view, I cut the rear deck out as seen below by which any service and access could be done so easily and fully. :-)) :-)) :-))  Easy maintenance is quite important to run a RC boat sufficiently and joyfully with less frustration during very precious/enjoyable time at a boating site, isn't it.??? O0 {-) %% :-))

Under the blue sky, and on the blue and large water on which a white RC cabin cruiser sails smoothly, decently, stably, gracefully and calmly leaving so long a wake clearly....This is my own goal and intended time to build a RC model boat.  O0 {-) :-)) %% %%
But this is basically supported and fulfilled by a good health, needless to say.
Well then, it's about the routine time for me to hold my shape of body by running in my local gymnasium. %% %%
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on March 19, 2025, 05:49:45 am
Well, the work for today is soooooo critically important for the lake-going RC (fast) boat to sail on a rough water as seen below. :embarrassed:   Yes, it's a water-tight process not around the hull bottom, but at the departing line between the fixed deck and the detachable deck.... Unless processed properly, the boat may encounter the fatal bad fortune as to be gone to Davy Jones's locker finally.... <:( 8) :-X

My second PT109 which was also well done in the water-tight process unfortunately encountered the very rough water in her maiden voyage and consequently survived the hellish trial run, however I was actually sooo anxious about the run during the operation from the bottom of my heart, frankly speaking...!! {:-{ :-X :-))
It could be a really nice? seaworthy test for this MTB unintentionally...!! {-) {-) {-) {-)
Naturally, all the crews were completely drenched to the skin..as if they said "Oh my goodness!! Who is the skipper for today!!" {-) {-) {-)

I suppose gentlemen like you here may never do so stupid/wild sailing and challenge as to drive her to go possibly to the bottom of the lake.  {-) {-) {-)
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on March 22, 2025, 02:33:41 am
Next is a general assembly of drive train inside the hull at last.
Before that, I had to check and confirm if the full accessibility into the hull has been really and easily secured in the present
configuration. O0 O0  Especially whether or not the motors can be replaced is vitally important for all my Rc boat models. O0
The motor replacement has to be done comparatively easy for this sort of fast sailers on the water, needless to say. :-)) O0
The balance between bow height and stern height from the water line is also so important for getting into smooth planing mode.
For getting proper balance of hull, I struggled a bit to keep it proper when laying the RC gears out as this hull has just become front -heavy condition. :-X {:-{




 
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on March 26, 2025, 04:18:20 am
The deck was fixed at last after sufficient checking if it might be Ok to do so. :-))
Trial run as a mere RC boat is supposed to take place in early April...??  It has been not a good weather for trial run..Windy days
have increased gradually together with spring atmosphere here in Tokyo where the Cherry blossom has come into bloom.!!! :-))
It's 27 degrees C here in Tokyo.!!!!!!! :o :o :o :o toooo hot!! Two -part epoxy is soon to get cured. {-) {-) %%
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: swiftdoc on March 26, 2025, 05:53:00 am
Your build is coming along nicely, Kiyo! I will keep my fingers crossed for the maiden voyage :-))
27 degrees, phew, feels like summer :embarrassed: %%  The cherry blossoms will not like that and deteriorate quickly….
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: swiftdoc on March 26, 2025, 05:26:25 pm
These are the current cherry blossoms of our tiny cherry tree in Germany, which we have planted in our garden last year. ;)
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on March 27, 2025, 05:44:45 am
Oh!!, it' really realy cherry blossom of Germany, soo cute!!!! :-)) :-)) :-))
It's very impressive to see such an awesome cherry blossom as yours blooming in European country like Germany.!! O0 :embarrassed: :-))
Please take care of life of cherry, soo short like a week or so after full bloom and soo weak against the wind.
In this sense, I do hate this provoking wind that has also distressed me terrifically so far even in my RC model boats operations currently and RC planes previously..  >>:-( <:( 8) 

Anyway, thanks for a lovely pic of cherry, Arno.!! :-)) :-))
Kiyo
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on March 30, 2025, 06:13:24 am

The deck has been well fixed with a thin CA and a 90minute epoxy.
I have never used Pla-model cement for larger parts of a model ship in terms of the long applying time, complicated procedures to locate each larger parts together in place as well as fixing them at a shorter time during which the cement is soon to dry leading to mal-bond and inaccurate assembly, at least in my case... {-) %% O0 I am clumsy.!!?? {-) {-) {-) 

Then, sailing test at very slow speed to check how she behaves on the water.!!   But not so good, to my regret. :embarrassed: {:-{
Water cooling is not sufficient....I was so much surprised to know this unsatisfactory /unexpected malfunction since this kind of phenomenon is the very first to encounter at respective first test run made in the past..... :(( :o  Behaviour was so so for the first test as previously expected. O0
Especially I could confirm my favorite/decent side waves as in the pics clearly at slow speed. O0 :-))

Anyhow, "Seeing is believing" is so significant and important whenever to make some assertions/appeals to the others and I understand this old saying is so common even in Europe.. O0 %%
That's why I have made it a practise to attach many photos as much as possible whenever to post here in this forum. :-)) :-)) %% %%
 
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Dean's Marine on March 30, 2025, 02:39:37 pm
These are the current cherry blossoms of our tiny cherry tree in Germany, which we have planted in our garden last year. ;)
Hi Arno & Kiyo Spring is also on it way her in the UK, suns out and some of the trees are starting to blossom out of the wind, cherries are a way off yet, but the sun bring the winds here on the fens ( flat lands) with a sharp cold edge, and not to good for boating as well. good for indoor local shows  it will soon be Easter and change will come Regards Rpn
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on March 31, 2025, 06:22:38 am
Hi Ron,
It's a great pleasure to see you unusually here in this forum apart from your company's site where I used to have a cordial hospitality on my 1/96 HMS Fencer build. O0 :-))
I have watched the pics in detail for which I do express my thanks, and am surprised to know that cherries have been planted
in your garden? as well as Arno's ... If so, splendid !! :-))  This cherry is deemed to be the second National flower following a Chrysanthemum (our Emperor's flower)
Do you regularly hold such a nice show throughout a year ? I have noticed that there should be numerous RC boats clubs with club ponds which is sooo amazing for Japanese RC boaters...wow !! {-) :-))  It's really INCREDIBLE at all.!!!! :o :o How I envy you.! :embarrassed:

Thanks to your release of this HMS Fencer, I could have a best chance to have a large RC carrier at last and succeeded in actual
sailing on the lake as seen in the video below.!!!! Woh-Woh !!
Thanks Ron!! :-)) :-)) :-))
 
https://youtu.be/4f-fI3S6f1E (https://youtu.be/4f-fI3S6f1E)

"A fact surpasses any theories, any argumentation and any reasoning." O0 {-) %% :-))
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: swiftdoc on March 31, 2025, 08:32:21 am
Hi Kiyo and Ron,
It is nice to see that not only model boats but blossoms as well bring us together around the globe! I have spotted the SS Falcon on Ron‘s model display, the kit I am actually building. She is an attractive model in my mind, just like HMS Fencer, but a lot smaller {-)  Kiyo‘s Fencer is a really amazing build with wonderful detailing….
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on March 31, 2025, 11:46:26 am
Arno,
A great thanks for your very gentle, friendly and affirmative comment.!! :-)) :-)) 

So much for the matter, shall we go back to Greenock?!
Hard to port! :embarrassed:
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on April 02, 2025, 03:30:53 am
Well, getting back to mainstream of the title again, I decided to adopt brushless motors in terms of cooling and power.
On the other hand, motor mount looks a bit weak to hold so powerful motors that I made the reinforcement steel parts from scraps and set them in place as seen below. :-))  Anyhow, a brushless motor is so powerful, isn't it.!? O0 O0 {-)

My water-jetted PT109 MTB by brushless motors--->wow!  https://www.youtube.com/watch?v=4idvkPvRRRQ (https://www.youtube.com/watch?v=4idvkPvRRRQ) :-))
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on April 05, 2025, 06:23:47 am
It's getting warmer and warmer gradually here in Tokyo together with inviting daily breeze by which Japanese favorite cherry blossoms have started falling off very gracefully and slowly, one petal by one petal as if they were waiting for their order to go.. :-))  Very short life for them nevertheless courageous and graceful dispersion without any hesitation to do so... :-)) :-)) {-)

New drive train was set up as in the pics for the fast patrol boat which was intended for reliability and speed.
I replaced the couplings with plastic(reinforced engineering plastics of Ny) made ones as well as brushless motors.
So far as this is not a scratch-built model nor a RC specialised model, just a conversion from a mere pla-model boat. 
In this sense, this project itself may have been always a challenge from the beginning at each stage of work.. %% O0 :-))
Building a RC boat itself is such and such throughout the process until completed and still continues as far as getting to a satisfactory sailing result. O0

Well, so that is that for today.!! ;D
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on April 11, 2025, 09:47:24 am
I renewed ready-made water-inlet nipples of water jackets with much stylish and effective ones as seen in the pics below.
That is to say, from I-shaped nipples to L-shaped ones. Test run with brushless motors has not yet regrettably done due to continuous and windy days here in Tokyo. :(( <:( >>:-( To make the matter worse, cherry blossom has largely been fallen off. >>:-( <:(
What a provoking wind it is to both the test run and the cherry blossom. 8) %%

Pic1 is previous style.
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on April 17, 2025, 02:45:49 am
While waiting for a good day for an intermediate trial run on the water, I made simply a davit crane out of the parts in the odds and ends box.  {-) :-))

Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Dean's Marine on April 17, 2025, 12:08:26 pm
Hi Arno & Kiyo Spring is also on it way her in the UK, suns out and some of the trees are starting to blossom out of the wind, cherries are a way off yet, but the sun bring the winds here on the fens ( flat lands) with a sharp cold edge, and not to good for boating as well. good for indoor local shows  it will soon be Easter and change will come Regards Rpn
Hi Arno & Kiyo Spring has arrived at last here on the flat lands, the trees are in blossom the test pond had been cleaned and re filled, now to drag out some of the older models, and the new ones that have not been used for years, a clean up and on the water for filming.  Happy sailing  Ron
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on April 17, 2025, 01:53:45 pm
Hi Ron,
So nice to exchange the words and see awesome RC boats again on here with you. :-))
At a glance, the test pool seems to have been enlarged as twice large as ones ever set just beside a certain house (shop?)..
You could enjoy the boating there sufficiently whenever you may wish to do, how I envy you, Ron!!  :D %%

Even seeing the RC boats only staying silently on the water is also happy and I could spend a dreamlike time in such an occasion
during which a cup of coffee may be so delicious and tasteful.. O0 :-)) One of the happiness in my life.. {-) {-) {-) {-)

Kiyo
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Dean's Marine on April 17, 2025, 03:25:54 pm
Hi Ron,
So nice to exchange the words and see awesome RC boats again on here with you. :-))
At a glance, the test pool seems to have been enlarged as twice large as ones ever set just beside a certain house (shop?)..
You could enjoy the boating there sufficiently whenever you may wish to do, how I envy you, Ron!!  :D %%

Even seeing the RC boats only staying silently on the water is also happy and I could spend a dreamlike time in such an occasion
during which a cup of coffee may be so delicious and tasteful.. O0 :-)) One of the happiness in my life.. {-) {-) {-) {-)

Kiyo Hi Kiyo I will have to go and gets some coffee, I agree they do look good in still water on a sunny days, just likes ours, nice boats but I have to chase the ducks out as they seem to have made a home on our pond, and if you put any food down they will have it.regardsRon
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on April 18, 2025, 03:02:56 am
What excellent pics you have shown here,!! Ron.!!  They are so great with a combination of nature and RC Chris craft  Constellation.!! Blus sky and green grass as well as lovely ducks which are the very nature are stunning and typical scenes of happiness through RC boats, aren't they..!!?? %%
Color of the pics is so clear even in the internet. O0 :-))

 The last pic shows Jupiter-F99 under air raid? by a waterfowl since the boat have invaded her territory??? {-) %%
Some cups of coffee and snacks were very delicious with seeing the nature and my boat while chatting with a ..? :-))

Kiyo
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: swiftdoc on April 18, 2025, 07:46:20 am
Lovely photos, Ron and Kiyo, which show the pleasure of model boating beautifully!


At the moment I cannot sail my boats at the club pond. We have cleaned it three weeks ago and then it stayed dry until yesterday. We are expecting some rain over the weekend which hopefully will help filling the pond again...
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on April 18, 2025, 02:10:07 pm
Arno,
Your club pond looks very nice to sail RC boats surrounded by forests.
Does your club have the proprietary rights over it or renting it?
It's amazing for me to know that your club could clean the pond after draining the water largely... :o :o


Ron
I think you had better hold a model boat show on the water like a naval review from time to time, not in the room...
A model boat even if it is small is a boat and the show possibly may look much better if floated on the water..!!! {-) {-)
Well, it's about the time to go to bed.!!

Kiyo
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: swiftdoc on April 18, 2025, 06:18:59 pm
Kiyo, our club is not the owner, we are only allowed to use it for sailing boats when it is not used for swimming. The city of Siegen owns the area and we can use it if there are no swimmers, that is in summer after 7p.m. We have to clean it in spring, so that the tiles in the non-swimmer area are clean before the season starts. I was told that now the water level is high enough for sailing a boat in the deep water area in the background of my photo. I will post a photo tomorrow😎
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on April 19, 2025, 02:25:41 am
What a generous city you are living, Arno!!!!!!  :-)) :-)) :-))  Very suitable for RC boating in addition to an overwhelming nature
surrounding the boating site. O0  All is excellent circumstances. ;)
Looking back to our case,...terribly pitiful concerning RC model activities across Japan. Japan is truly less-developed country unlike
European countries in this hobby.!! RC airplane activity is fundamentally now under national government control while RC boats are mostly prohibited by local governments expressly. >:-o >>:-( <:( RC cars are not exception of the above. My local tiny park within a few minute's walk is expressly also prohibited in the bulletin board like " No RC cars and drones". The similar bulletin boards could easily be seen in most parks regardless of their scales, urban parks and rural ones, mountainous parks, etc.. >>:-( >>:-(
Most RC modellers are having the same complaints about the strict regulations across this country, a developing country that is
not understanding significant RC models as a wonderful hobby as European countries are generously understanding the value of the hobby.
I have ever seen some RC boats sailing in a very small pond in a small park in UK in the internet. Many people seemed cheefully
to watch the boats.....I'm confidently to say that it's completely impossible in Japan.!!! :D {:-{
In this sense, the Europeans are very happy while Japan is terribly miserable in this hobby world, the country that likes strict control over citizen daily life like neighboring countries?? {-) {-) <:( >>:-( >>:-( Still a developing Asian country... {-) {-) {-)
I, once upon a time, was a RC plane flyer, but couldn't help giving it up to continue due to the loss of airfield and strict rules by the Government. >>:-( >>:-( >>:-( >>:-( <*< <*< <*< <:( <:( <:( <:(




 

Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: swiftdoc on April 19, 2025, 07:35:37 am
As for RC airplanes we have the same regulations in Germany, Kiyo. We have some clubs who rent private territory and have the licence to run an airfield for their hobby.


Most of the ponds are rent by anglers who do not tolerate RC boats, even not working boats sailing at scale speed. You are right, our club is in a very generous situation! In the UK the situation seems to be better, as I have witnessed on several occasions….
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: swiftdoc on April 19, 2025, 06:38:03 pm
Sailing is possible again on the deeper area of the pond. I have sailed my Lady of Wroxham (slipper launch which does not need much water depth). ;) :-))
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on April 20, 2025, 02:03:18 pm
Congratulations,!!! Arno. :-))  Looked happy boating really !!!  The boats themselves looked also so friendly each other.! {-) {-)
You and your club could cheerfully have come into a wonderful world of RC sailing again. %%
With the pics, it was soooo easy to imagine how joyful the RC boats and ships were tasting the new water after intensively cleaned. O0 O0

I just feel this kind of efforts to clean the boating site may be so important, indispensable and kind to the pond( the nature)
to truly enjoy this precious hobby of RC boating.... O0 O0 O0 O0
In this sense, you and your club must be so-called gentlemen to the RC boating and the nature.  What a great attitude, Arno.! O0 :-))
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on April 21, 2025, 11:15:33 am
 I checked how the painting result was. And this was so so. This time I painted red following  white color done some days before already. Yes, our rising sun colors of our national ensign.. {-) {-)
Next step will be polishing process. O0
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: SteamboatPhil on April 21, 2025, 08:26:43 pm
looking really good, question how do you do your polishing
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on April 22, 2025, 02:43:31 am
Hi SteamboatPhil,
Thank you for always friendly comment, Phil! :}
My style of polishing is simply to apply the Tamiya compounds to the hull and rub it after sanding slightly with around #1000 sandpaper briefly for a good appearance and a sailing/maintenance performance.
There are three types of compounds as seen below depending upon the surface conditions of the models.
I used to use a car compound but I exhausted it.

I had a good impression about the Tamiya compounds through polishing Lindberg Chris Craft Constellation 1/20 as seen below.
It's OK for me at the polishing level of this gloss, not to say perfect or piano finish, as this is an actually and repeatedly running RC model on the water. O0 {-)  She is not a RCed exhibition model boat, but an actual runner on the water. {-) :-))


The last pic is to be called " an actually sailing pla-model boat", isn't it.?? {-) {-) {-)

Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Martin (Admin) on April 22, 2025, 08:11:30 am
 
Wow!   Nice finish!
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on April 22, 2025, 11:42:06 am
A great thanks for your compliments, Martin. %%


The pics below were processed by a car compound intensively.
The pics on the water and the cradle in the mid-summer, with the author's compliments.! {-) {-)
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: swiftdoc on April 22, 2025, 05:16:12 pm
All looking neat and crisp, Kiyo, well done. The paint job is always something you have to do very carefully in order not to spoil the good work you have done before, building the model. I also use that Tamiya compound, followed by polishing wax as used for cars, works a treat! :-))
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on April 23, 2025, 07:50:22 am
Oh, Arno.. your Shannon shows awesome gloss like a piano or real car finish which is far and away better than mine.!! O0
It's truly amazing and stunning finish.!!!
I remembered your Shannon when I saw my wife and a granddaughter playing a grand piano at our local piano concert held some days ago. As you know, surface of the piano is like a mirror that reflects something like a mirror.?!!! {-) {-) {-)
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on April 24, 2025, 12:09:41 pm
Next painting color is green. This boat is simulated a Japan Coast Guard vessel which one is normally painted in tri-colors, white, red and green. So, I just followed this color scheme simply. :-))


Yes !, this time, an US PT109 MTB Lindberg is now being converted to a Japan Coast Guard's high-speed patrol boat..!!! {-) :-)) %% :D
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on April 26, 2025, 02:18:24 pm
Cosmetic process is now being under way firmly and I made trimming work of the deck edge around the hull as seen below.
The boat has been becoming a simulated patrol boat of JCG by the typical tri-color scheme. O0 O0 :-))
This trim works have made the hull looked tidier and crispier, haven't it.? {-) %% :D
 
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on April 28, 2025, 05:29:51 am
I'm so happy to post here the following pics of the boat with insignia on the freeboard.! {-) {-) :-))
From today, she has literally become a simulated Japan Coast Guard's patrol boat with a high-speed capability against suspicious and unknown boats especially/frequently observed in the Japan Sea..??!! {-) {-) :-))

With these insignia, this patrol boat model looks a bit scale like boat than ever before.. :-)) ♪~♬~♩~(^^♪
Needless to say, design of insignia and its position are my own design. O0
For your information, Japan Coast Guard is formally designated " Japan maritime safety agency" which does not sound common
in the world, and hard to understand compared with Japan Coast Guard.  O0
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: swiftdoc on April 28, 2025, 07:25:42 pm
Looking great, Kiyo. Is that vinyl lettering?
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on April 29, 2025, 03:47:19 am
That's right, Arno.!
As you know well, this kind of lettering is so easy to apply and to remove when necessary to re-apply another lettering for better
looks. :-))
I am supposed to change the present letterings to new ones like an actual boat as seen below.

You have a lot of famous manufactures of this lettering in your country. I used to often use German-made letterings in the past
which were so nice as compared with Chinese-made ones. O0 ;D

Next summer project will be this kind of water-jet patrol boat of JCG using Lindberg PT-109 1/32.
If possible, water jet thrusters will be equipped with reversing buckets as your Shannon. O0
But, I did not feel necessary to get my PT109 jet MTB equipped with the reversing buckets at all on the water actually.... O0 {-) {-)
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on April 30, 2025, 08:12:59 am
At the end of the month, my high-speed patrol boat has come up here to this level rapidly like this fast boat... O0 O0
Although this is currently a RC boat, originally a pla-model by blood and thus it is easy to assemble such brief superstructures as MTB. O0 %%   That's why I love to build the pla-model MTB which is so kind to pensionary old man like me... {-) {-) {-)  while it could easily be a great runner on the lake and play the RC operation right away in different appearance born from the same hull. :-)) %% O0
I wish I could convert Lindberg PT109 to a water jet high speed patrol boat of JCG under the tri-color scheme enabling it to run like the MTB jet boat or JCG's actual boat as in the above pics of yesterday... {-) {-) :embarrassed: :embarrassed: %% %%
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on May 02, 2025, 04:24:52 am
The mast has to be modernised a bit to meet the post-war day's vessel... {-)
The simple mast of PT109 was converted a bit briefly to a small JCG's patrol boat with some modern electronic equipment as in the pics. :embarrassed: %%
No excessive detailing works is required for this level of RCed pla-model boat but needs rather scale realism of sailing on the lake for me. %% {-)
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on May 17, 2025, 02:31:44 am
Well, I'll restart my posting after close to 2 week-long journey to the west Japan by my car for a sightseeing purpose that recorded 2,920km(1,825 miles) with an average fuel consumption of 15.8km(9.9miles)/liter by its 1,800cc engine.


I installed the mast permanently as seen below by which she looked a bit like a high-speed patrol boat from PT109 MTB.!? {-) %%




Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Martin (Admin) on May 17, 2025, 09:59:04 am
" ..... with an average fuel consumption of 15.8km(9.9miles)/litre by its 1,800cc engine.

 What are you driving, a bulldozer?!?!?   :o
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: JimG on May 17, 2025, 10:41:16 am
When you convert from metric that's around 45 mile per gallon, not too bad on a 1.8 litre engine.
Jim
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on May 17, 2025, 01:25:19 pm
Thank you so much for your information about your style of conversion, JimG.!! :embarrassed: :-))


The pic shows my cordial salute to the lord of a certain local government when visiting sightseeing spots in his territory and he in a formal costume served a cup of tea in return cordially.!!?? :embarrassed: {-) :-))
Or am I expressing my apology on misunderstanding even to him politely? %% {-)
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Martin (Admin) on May 17, 2025, 04:52:35 pm
What are you driving, a bulldozer?!?!?   :o
Quote
When you convert from metric that's around 45 mile per gallon, not too bad on a 1.8 litre engine.
Jim

Sorry, you're quite right Jim.... mixing my pints, quarts, litres & bushels up!   :D
 
 
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on May 19, 2025, 03:19:31 am
More done like the national ensign on the mast and hand ropes?
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on May 21, 2025, 03:59:17 am
Crews for the boat are now ready to serve aboard their new high speed patrol boat of JCG.!! :-)) :embarrassed:
They seem to have already exited to work aboard the boat and the trial run.!! {-)
The day of long-waited high speed trial run is upcoming gradually. !! ;D ;D ♪~♩~(^^♪ %%
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: swiftdoc on May 21, 2025, 08:28:10 am
Looking good, Kiyo! I also put figures on each of my models, as I do not like ghost ships {-)
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on May 21, 2025, 11:26:32 am
I quite think so, that's it.!!  Arno.  :embarrassed: O0         "No figures, no Rc boats"...??  That's what it is, indeed. :-)) {-) {-)
My Fencer 1/96 has been served busily by 70 crews and 21 Seafires still now. %% %%

Kiyo
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on May 23, 2025, 03:28:35 am
I just took some pics of the boat as commemoration of an intermediate completion for fun, although the boat in the box art and its built one are different each other, i.e, an MTB and a coast guard boat as well as their nationalities. {-) {-) :-)) :embarrassed:
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on May 25, 2025, 09:35:17 am
A bit of work was done at bow deck to install a pair of handrails? by a piece of high gloss aluminum rod.
As the rails are so brilliant that I did not paint them white, though should be done as seen in real coast guard boats of JCG. {-) :embarrassed:
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: jaymac on May 26, 2025, 03:22:00 pm
                                                               You might find this of interest


                         https://offbeatoregon.com/1401c.pt-658-worlds-only-working-pt-boat.html
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on May 27, 2025, 05:30:53 am
Hi jaymac,
Thanks a lot for your information.
I have read it through and thought that a storm of applause has to be given to those who had made the best efforts to have
the ugly hulk recovered to be a highly new-born MTB as possibly seen in her active service days. O0 :-))


Kiyo
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on May 28, 2025, 03:34:57 am
I also made stanchions with plastic rods this time to which 1mm holes were drilled briefly by 3 in each one.
Please remember this coast guard boat is merely a conversion(not a modification) project from Lindberg PT109 to a simulated
Japan coast guard boat. O0 {-)  I am simply enjoying the conversion itself ignoring the details of the boat or whole itself unlike your style of serious model making works sticking to every inch/mm? of the parts. O0 ;D %%
I am rather interested in sailing performance of a boat as the RC model regardless of scale,semi-scale or non-scale boats. O0 {-) {-) 
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on May 30, 2025, 03:30:46 am
And stanchions were set as seen below. :-)) A coast guard boat like feeling seems to have been generated gradually... :-)) {-)
By the way, she is supposed to launch by the middle of June and I wonder she could be a good runner on the water as to run like
a high-speed JCG coast guard boat like my other fast boats ever commissioned....This is the most anxious point currently.. O0 {:-{
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on June 01, 2025, 03:23:01 am
A very tiny work is going on to this pla-model coast guard boat, though this national ensign is indispensable and has to be water-proof as this will be frequently soaked up on the water especially at higher speed. :D O0
However, if our local boating site would be much much smaller, I would never necessitate to run her so fast as to generate water spray as I have been doing so far... O0 {-) If slowly run on the lake like a tug here, the operation would be sooo tedious taking lots of time to go round the boating course in so large an area lying in front of me. {-)

Seeing is believing with pics and/or videos.!! {-) :-))
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on June 04, 2025, 03:38:11 am
And a minor detailing work still continues on and on... :embarrassed:
It's normally about the time to make a first high-speed sailing, judging from this level of hull profile..
Normally in this season here in Japan, rainy, cloudy and a bit windy days are continuing that disturb the trial run.. {:-{ {:-{
Yes, it's a provoking season nowadays really for Rc boating, but but and but the weather is so meaningful for the agriculture of rice which
has not been supplied sufficiently among most Japanese which has become a major political issue in the diet currently.. >>:-( <:( 8)   >>:-( >>:-( A 5kg(11 pounds) pack of rice was about 2000Yen(13.9USD) or so while is about 4300Yen in a year or so.!!
"A Japanese people are starving for rice" is not an exaggeration to some extent. {:-{ >:-o
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on June 08, 2025, 07:12:00 am
The next detailing is this rescue boat that is to be set on stb side under the derrick. O0 :-))
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on June 10, 2025, 03:15:17 am
And I set the boat at stb side as in the pics.
I currently do not have any ideas of what to do next for this fast pla-model RC boat. O0
I have to try to find some suitable days to be compromised for the trial run actually on the water. O0 :embarrassed:
So far as this is the winter project, I have to fully terminate this project with success, not postponing it meaninglessly... {-)


I installed nearly all the fittings except a superstructure, handrails and a ventilator with double-sided adhesive tape just in case they should need to relocate, replace and remove in due course of time.
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on June 14, 2025, 10:45:06 am
I could happen to find a nice day for getting my boat on the water and took some memorial pics.!! O0 :-))
To my regret, it was cloudy though... {:-{
A model boat looks better on the water to my eyes..?? %% %% {-) {-)
I really feel refreshing to see such pics of model boats floating calmly and/or sailing realistically... %) O0
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on June 16, 2025, 04:10:38 am
Here are the pics of sailing at slow speed since this was the first to sail after completion.
I just checked how she behaved on the water and went so so as usual for a fast scale pla-model boat. {-)
The most anxious point was if the brushless motors were well cooled by the water and this was also very well done as seen
in the pic No3. The pic No3 shows sufficient drain of water from both sides of hull for this level of speed. :-)) :-))
In the next step on the water, she will receive mainly a test of speed and its behaviours.
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: swiftdoc on June 16, 2025, 08:15:01 am
Looking good for a first sail, Kiyo! :-)) O0
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on June 16, 2025, 08:43:06 am
Arno,
A great thanks for your quick reaction of kind comment.!!! %% :-))


I'm so much satisfied with the clear pic of draining as greatly expected to do so.
Because in the early stages of trial runs of my first jet drive boat, cooling water wasn't necessarily drained/supplied sufficiently by which some brushless motors had been burned out.. <:( :((
But even this jet drive boat could be later improved successfully to drain well enough as seen in the following 2 pics, leading to a nice sailing performance with which I'm so satisfied.!! :-)) O0
I'm not a so-called speed mania,but had better know the ultimate performance of a model boat built with lots of efforts just like real ships/boats which have possibly been proved seriously and precisely in the trial runs before their deliveries, especially warships might be the cases..??  :embarrassed: {-)  I usually have not operated my boats at full throttle, needless to say. O0 O0 {-) {-)

Kiyo
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on June 17, 2025, 07:12:27 am
Here is a YOU-TUBE video of my Japan Coast Guard model boat.



Bing 動画 (https://www.bing.com/videos/riverview/relatedvideo?&q=lindberg+pt109+converted+to+japan+coast+guard+model+ship&&mid=BF3D57D295663E7C7AD6BF3D57D295663E7C7AD6&&mcid=4208E0A0A89744CE90865899F86C711B&FORM=VRDGAR)

Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Shipmate60 on June 17, 2025, 09:00:25 am
She looks great on the water, you have done a great job with her.


Bob
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on June 17, 2025, 11:50:25 am
Hi Bob,
So nice to have your kind comment on my boat.!!
She has been growing up and educated on the water currently as a RC serviceable boat on the lake under me, a trainer day by day. {-) O0 :-))


Kiyo
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on June 19, 2025, 07:18:34 am
In the second day of trial run, the boat had happened accidentally to encounter the rough water and the trial run itself became a
speed test under the rough water, not under a fine day...!!! :-X {:-{ :embarrassed:  Though it was so effective to practise both speed and rough water tests in one sailing or one day.  {:-{ {:-{ O0 O0 :o
The wind was blowing at 10km/h(6.3miles/h) that was a bit fierce for the small boat. O0

Attention to the Oerlikon 20mm single barrel gun mount and its operators as well as a davit crane in some pics.
The former one had been removed thoroughly while the latter collapsed after a lethal collision with big waves in the early stage of the first test sailing... 8) :-X  But she continued sailing on and on by ripping the waves largely with its nice bow as in the last pic. :-))

Finally she did a very good job under the terrific weather. :-))   A nice coast guard boat of Japan. O0 O0 {-) {-) ;)
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on June 21, 2025, 02:22:45 am
I have just taken up some unusual pics of clash between the boat and the waves fiercely in the second day of trial run. O0 :-))
These still images may illustrate concretely what the collision be at the moment that is normally not to be confirmed nor acknowledged clearly on the spot. O0
These pics are really just like hi-speed photos. :-))
These still pics are so informative for me who have been enjoying sailing on the lake, to analize how the model boat be influenced by the rough waves at the collision or on high speed sailing or steering. :embarrassed:

Oh,my goodness, she disappeared really leaving only large splash in the pic1.!!! {-) :o :-))
An Oerlikon 20mm gun mount and davit crane have already been removed or fallen down on the deck after the collision
as if she were in the typhoon or the North Atlantic sea in the winter..? {-) {-)

Enjoy the pics of clash.! :embarrassed:
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on June 23, 2025, 05:58:39 am
Shocking pics to have lost a 20mm gun and its operators as well as a davit in detail on the rough water test.. :(( :(( :embarrassed:


1; In the beginning, a clash with waves fiercely
2; A little while later, the gun and davit looked to have disappeared aboard the hull..!!!! <:(
3; Clashes were taken place repeatedly all the way ...
4;Finally I felt easy to have noticed the fittings sitting on the stb side in a piteous manner as in the pic... %%  :-))


How lucky I am!!!  :D   No loss of fittings at all in spite of terrible waves of the lake.!!
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: swiftdoc on June 23, 2025, 05:21:34 pm
Really stunning photos, Kiyo!! Pic 1 looks as if the boat capsized?! Fortunately it all ended well :-))
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on June 24, 2025, 11:16:59 am
Hi Arno,
Thank you for your comment.
The boat never capsized at all, but a 20mmOerlikon gun and davit were damaged as seen in the pics below. O0 {:-{ ;)

You can easily imagine by the video below lively how the boat struggled with the rough waters in the second trial run.
Please enjoy the video. :-))
The damage around the 20 mm gun and davit might have taken place right after 25 second past from the beginning when the boat clashed with the waves fiercely... O0
This trial run partly became a seaworthiness test unexpectedly and unintentionally as the result.!!! {-) {-) {-)
A trial run on the water is always challenging, isn't it.?! Because the 1/1 very nature of water is always the very final and severe judge for a RC scale boat built with much efforts by a modeller. O0 O0

https://youtu.be/gQFAzRfUU6U (https://youtu.be/gQFAzRfUU6U)

Kiyo
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Martin (Admin) on June 27, 2025, 05:54:15 am
 
https://youtu.be/gQFAzRfUU6U?si=d5p1vkUYOo58TSaL
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on June 27, 2025, 07:34:24 am
Through the past two rial runs as seen in the above two videos and many other pics posted in the past, it's never too much to say
that this coast guard patrol boat model is really sea-worthy and serviceable RC boat even on the rough lake at speed STABLY.
In this sense, I may possibly and confidently declare that this winter project fundamentally has been accomplished in success
like the previous water jet MTB PT-109 in experimental project.?! :-)) :-)) :-)) :-)) :-)) :-)) :-)) %% %% %% %% %% %%

The wind was blowing at 6.3miles/h on the day of second trial run which was a bit severe for 30in pla-model boat. :embarrassed:
But it didn't matter so much for the coast guard boat. O0 :} {-) {-)

What a wonderful hobby the model boating is really.!! O0 {-) {-) :-)) :-)) :-)) :-)) :-))
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Martin (Admin) on June 27, 2025, 08:23:34 am
 
   :-)) :-)) :-)) :-))
Title: Re: Lindberg 1/32 PT-109 RC conversion to what next in this winter project?!
Post by: Backerther on June 27, 2025, 08:44:10 am
Hi Martin,
A great thanks for your kind" silent comment".! {-) %% :-))


We all are living in a wonderful world of RC boating hobby, aren't we.?!! :-)) :-)) :-)) :-)) :-))
Oh, too hot this day,!!!! mid-summer already !?? :D :-X  and so dirty waters this day!!! >>:-( >>:-(
Nevertheless, outdoor RC boating was so enjoyable, wasn't it really, my mates? :-)) :-))

Kiyo