Model Boat Mayhem

The Shipyard ( Dry Dock ): Builds & Questions => Navy - Military - Battleships: => Topic started by: AndrewB on July 16, 2010, 11:24:25 am

Title: PT Boat build
Post by: AndrewB on July 16, 2010, 11:24:25 am
Well I have the ply and have made a start with the ribs :-) these are made out of 3mm marine ply
(http://s2.postimage.org/Uw5Cr.jpg) (http://www.postimage.org/image.php?v=TsUw5Cr)



I am waiting for the builder who has been renting our garage to move on so I can set up, I have been working in the lounge at the moment, not ideal.
Title: Re: PT Boat build
Post by: AndrewB on July 29, 2010, 10:52:47 am
I have been doing a bit of work as i have the time, sanding, cutting. So this is the boat with the ribs just sitting on the building runners.


(http://s4.postimage.org/y1F9.jpg) (http://www.postimage.org/image.php?v=aVy1F9)
Title: Re: PT Boat build
Post by: freelance 1 on August 04, 2010, 08:01:11 pm
Andrewb..... which pt boat are you building.??

pat
Title: Re: PT Boat build
Post by: AndrewB on August 05, 2010, 12:42:31 am
Andrewb..... which pt boat are you building.??

pat


Hi Pat
Free drawings were from http://www.pt-boat.com/ Quite good. It is a 1:20 of the Elco 80'

Cheers

Andrew

Title: Re: PT Boat build
Post by: AndrewB on August 06, 2010, 11:32:57 pm
Hello all

Well I have just put my order in with Dave at ACTion Electronics, this is what Dave suggested and is what i have ordered   http://www.action-electronics.co.uk/pdfs/HMS%20Brave%20Borderer%20MTB%20-%20Nick%20Panter.pdf
I cant wait for it to turn up.

Thanks to Dave, a great help  ;)
Title: Re: PT Boat build
Post by: AndrewB on August 13, 2010, 11:05:37 pm
Hi all

I have just received my controller bits from ACTion electronics, great service and the product looks well made.
Title: Re: PT Boat build
Post by: AndrewB on August 24, 2010, 08:21:26 am
Ok the latest on my wee project, I have the sanded the frames set up and glued onto the build runners, It is looking quite good, I am please so far.
(http://s3.postimage.org/EKzn0.jpg) (http://www.postimage.org/image.php?v=PqEKzn0)

(http://s4.postimage.org/pMV2i.jpg) (http://www.postimage.org/image.php?v=aVpMV2i)

(http://s4.postimage.org/pNltS.jpg) (http://www.postimage.org/image.php?v=aVpNltS)
Title: Re: PT Boat build
Post by: AndrewB on August 30, 2010, 08:25:35 am
Ok the weather has been rubbish here in Wellington,  have a look at my weather site www.brooklynweather.co.nz
 Not that I need an excuse to work on the boat, I took the opportunity, I made up and fitted the outer keels for the outer prop shafts
(http://s4.postimage.org/K53TJ.jpg) (http://www.postimage.org/image.php?v=aVK53TJ)

(http://s4.postimage.org/K5dSi.jpg) (http://www.postimage.org/image.php?v=aVK5dSi)
Title: Re: PT Boat build
Post by: jonny shoreboy on August 30, 2010, 12:20:51 pm
Hi mate, looking good so far. How big is this beasty going to be once it's finished? As for the weather in Windy Wellington, well landing there in a plane is an experience in itself! The wife and i will be driving through there in January.
Title: Re: PT Boat build
Post by: AndrewB on August 30, 2010, 08:16:38 pm
Hi mate, looking good so far. How big is this beasty going to be once it's finished? As for the weather in Windy Wellington, well landing there in a plane is an experience in itself! The wife and i will be driving through there in January.

Hi Jonny
the beasty is 1200 mm long, as for flying in to Wellington in a decent southerly, its a experience not to be missed  ;)
Title: Re: PT Boat build
Post by: AndrewB on September 02, 2010, 10:02:09 am
Hi All

Well it's been a bit quiet on the PT front, just a bit of sanding at nights. But I had some bit turn up from J R Haynes yesterday that I have made up, pretty good stuff too.

(http://s3.postimage.org/kD0o0.jpg) (http://www.postimage.org/image.php?v=PqkD0o0)

(http://s2.postimage.org/KgHBr.jpg) (http://www.postimage.org/image.php?v=TsKgHBr)

(http://s1.postimage.org/z8lJ.jpg) (http://www.postimage.org/image.php?v=gxz8lJ)

(http://s3.postimage.org/kD7Sr.jpg) (http://www.postimage.org/image.php?v=PqkD7Sr)
Title: Re: PT Boat build
Post by: Gra on September 02, 2010, 10:29:41 am
Hi Andrewb,
Your second photo showing the 20mm Oerlikon appears to be mounted incorrectly.
The barrel mounting should be the other way around.
Not being smart just trying to help.I have a 80ft and 77 ft Elco at 1/24 scale.
I have used the J/Haynres armament on my 80ft Elco.

Gra
Title: Re: PT Boat build
Post by: AndrewB on September 02, 2010, 10:58:12 am
Hi Andrewb,
Your second photo showing the 20mm Oerlikon appears to be mounted incorrectly.
The barrel mounting should be the other way around.
Not being smart just trying to help.I have a 80ft and 77 ft Elco at 1/24 scale.
I have used the J/Haynres armament on my 80ft Elco.

Gra

Good spotting, Thanks for that
Title: Re: PT Boat build
Post by: AndrewB on September 08, 2010, 10:31:53 am
Well I have started the hull planking, I am finding it quite relaxing  :D

(http://s2.postimage.org/nQ029.jpg) (http://www.postimage.org/image.php?v=TsnQ029)

(http://s2.postimage.org/nQcvS.jpg) (http://www.postimage.org/image.php?v=TsnQcvS)
Title: Re: PT Boat build
Post by: AndrewB on September 11, 2010, 08:06:38 am

(http://s3.postimage.org/5S140.jpg) (http://www.postimage.org/image.php?v=Pq5S140)

(http://s3.postimage.org/5SHtr.jpg) (http://www.postimage.org/image.php?v=Pq5SHtr)

(http://s3.postimage.org/5SWri.jpg) (http://www.postimage.org/image.php?v=Pq5SWri)
Title: Re: PT Boat build
Post by: jonny shoreboy on September 11, 2010, 11:03:27 am
Looking really good mate. The planking looks really neat and tidy!
Title: Re: PT Boat build
Post by: John W E on September 11, 2010, 03:58:54 pm
Hi there ~Andrew B ~ nice looking build and I like the way you have assembled the frames on the building board.

I have a couple of queries - I wonder why you havent added intermediate stringers on the bottom and the side?   Because, adding these helps you get the correct flare at the bow on the bottom and on the sides.   

Also, why have you planked one side first completely?  Because normally, planking one side at a time like this you may distort the hull sometimes.

So put a straight edge along your keel just to check.

As the glue dries out which is securing the planks, it tends to shrink and the plank tends to move and this can cause some distortion.

Lastly, are you going to double diagonal plank your hull? 

Looking really good.

aye
john e

bluebird
Title: Re: PT Boat build
Post by: Martin13 on September 11, 2010, 09:46:46 pm
G'Day Andrew,

A great looking hull and good planking job to boot. I also concur with Bluebird re intermediate stringers - I built a 6 foot Brave class hull and later wished I added more stringers as this would have aided in obtaining the correct profile a lot, lot easier.  O0

But having said that, it's great to see another plank on frame hull on this side of the globe and yes, planking is fun :-))

Martin doon under
Title: Re: PT Boat build
Post by: AndrewB on September 11, 2010, 10:29:26 pm
G'Day Andrew,

A great looking hull and good planking job to boot. I also concur with Bluebird re intermediate stringers - I built a 6 foot Brave class hull and later wished I added more stringers as this would have aided in obtaining the correct profile a lot, lot easier.  O0

But having said that, it's great to see another plank on frame hull on this side of the globe and yes, planking is fun :-))

Martin doon under

Hi Martin and Bluebird

Thanks for that guys

The stringers a bit embarrassing, as I have the wood to put them in, but I got a wee bit ahead of myself and forgot  :embarrassed:

Anyway, I'm quite please with the out come so far, I was i bit worried when Bluebird mentioned the hull distorting, but I seem to have got away with it :-))
in saying that I have used Wurth Cyano (I get it cheep as I am a rep for them) on the first layer, the second layer will be a good quality wood glue. Any suggestions would be great..


Thanks for looking
Title: Re: PT Boat build
Post by: AndrewB on September 19, 2010, 08:11:29 am
Ok, all the first layer of planking has been completed, onto the second layer now, the stunning thing is , I still am finding it relaxing  ;)


(http://s2.postimage.org/8Ll29.jpg) (http://postimage.org/image/hrppz7fo/)

(http://s2.postimage.org/8Lnxi.jpg) (http://postimage.org/image/hrrdijxg/)

(http://s2.postimage.org/8LCv9.jpg) (http://postimage.org/image/hs1aqmw4/)
Title: Re: PT Boat build
Post by: leggolon on September 20, 2010, 05:13:31 am
Very nice! Beautiful planking work.  I will be following your building thread...........................................Larry G.
Title: Re: PT Boat build
Post by: AndrewB on October 02, 2010, 01:02:20 am
Well planking is done!
(http://s3.postimage.org/vZd1J.jpg) (http://postimage.org/image/1sx399zes/)

(http://s3.postimage.org/vZi10.jpg) (http://postimage.org/image/1sx6kcoec/)

(http://s3.postimage.org/vZkw9.jpg) (http://postimage.org/image/1sx87w0w4/)

(http://s3.postimage.org/vZpvr.jpg) (http://postimage.org/image/1sxbiypvo/)

And one to show the view



(http://s3.postimage.org/vZr_A.jpg) (http://postimage.org/image/1sxd6i2dg/)
Title: Re: PT Boat build
Post by: derekwarner on October 02, 2010, 01:48:47 am
..... %% Andrew says..... "Well planking is done!"

A bit difficult to get our KIWI cousins to get their story straight.....as my take on this is ........the planking has been VERY well done  :-))

Woking with real wood is such a rewarding process...... :} ....Derek
Title: Re: PT Boat build
Post by: AndrewB on October 02, 2010, 05:45:08 am
..... %% Andrew says..... "Well planking is done!"

A bit difficult to get our KIWI cousins to get their story straight.....as my take on this is ........the planking has been VERY well done  :-))

Woking with real wood is such a rewarding process...... :} ....Derek


Cheers for the correction Derek :-)
Title: Re: PT Boat build
Post by: derekwarner on October 02, 2010, 06:06:41 am
 :o  Andrew....is "woking" a KIWI word or did I make it up?  {-) {-)  %) sorry......  %%

Please post many snaps as your project progresses....Mayhem members love to see the build O0 ,,,,,,,,,,  Derek
Title: Re: PT Boat build
Post by: AndrewB on October 02, 2010, 06:19:54 am
:o  Andrew....is "woking" a KIWI word or did I make it up?  {-) {-)  %) sorry......  %%

Please post many snaps as your project progresses....Mayhem members love to see the build O0 ,,,,,,,,,,  Derek

I didn't even see that. I just can't spell
Title: Re: PT Boat build
Post by: HS93 (RIP) on October 02, 2010, 06:24:11 am
very neat build.

Peter
Title: Re: PT Boat build
Post by: AndrewB on October 06, 2010, 03:41:21 am
Hi All

I have filled and sanded the low spots and put on the first of three thin coats of epoxy resin.

(http://s2.postimage.org/mqciS.jpg) (http://postimage.org/image/19ikonkbo/)

(http://s2.postimage.org/mqhi9.jpg) (http://postimage.org/image/19inzq9b8/)
Title: Re: PT Boat build
Post by: leggolon on October 06, 2010, 04:49:28 am
Super job on the planking.....looks perfect!!!!   Keep those posts coming.
Larry G.
Title: Re: PT Boat build
Post by: Peter Fitness on October 06, 2010, 06:12:38 am
very neat build.

I agree, an excellent job  :-)). Keep the photos coming.

Peter.
Title: Re: PT Boat build
Post by: leggolon on October 06, 2010, 06:30:23 am
Thanks Peter, appreciate your comments

Larry G.
Title: Re: PT Boat build
Post by: AndrewB on October 06, 2010, 07:55:37 am
I agree, an excellent job  :-)). Keep the photos coming.

Peter.


Thanks Peter, Plenty of work to do , so plenty of photos to come  :-))
Title: Re: PT Boat build
Post by: AndrewB on October 06, 2010, 11:39:34 pm
Three days off work, the day started wonderful, lots of sun  :D
So out with the hull, bucket of warm soapy water, some 320 grit wet and dry, and got sanding ready for the next coat of epoxy.
Guess what the wind has turned to the good old southerly (cold) the temp has dropped 5 deg in 30 mins, so no epoxy today  >>:-(

Any who have a look at the pics
(http://s4.postimage.org/lwG19.jpg) (http://postimage.org/image/17ozg83l0/)

(http://s4.postimage.org/lwNvA.jpg) (http://postimage.org/image/17p4eu52c/)
Title: Re: PT Boat build
Post by: AndrewB on October 08, 2010, 11:23:12 am
Hi All
Well it has been a good couple of days, Hull has been epoxied, wet sanded and primed.
I have even removed it from the build board, so my first look at the inside of the hull, I must say I am quite chuffed  :D
(http://s2.postimage.org/w4iK0.jpg) (http://postimage.org/image/1t45nux0k/)

(http://s2.postimage.org/w4sIA.jpg) (http://postimage.org/image/1t4ca0azo/)

(http://s2.postimage.org/w4xHS.jpg) (http://postimage.org/image/1t4fl2zz8/)
Title: Re: PT Boat build
Post by: Shipmate60 on October 08, 2010, 11:36:21 am
And so you should be, she looks superb.

Bob
Title: Re: PT Boat build
Post by: AndrewB on October 09, 2010, 11:31:59 am
Hello Mayhemers

Well I have started fitting up some of the controller bits and bobs, while I wait for the prop shafts and the rest of the drive train from the UK.
(http://s3.postimage.org/3zolS.jpg) (http://postimage.org/image/78cty2o4/)

(http://s3.postimage.org/3zAPA.jpg) (http://postimage.org/image/78l3mt50/)
Title: Re: PT Boat build
Post by: AndrewB on October 11, 2010, 10:12:14 am
Hay all

I am now looking at making a start of the cabin/engine cover area, however I don't have much in the way of detailed drawings. who has reasonable drawings available with measurements.

Any ideas?
Title: Re: PT Boat build
Post by: Peter Fitness on October 12, 2010, 02:25:49 am
Being an Aussie, I do know what a dingbat means...usually, but did you know it also means "an ornament, character or spacer used in typesetting, sometimes more formally known as a "printer's ornament" or "printer's character".? I certainly didn't.

This has nothing to do with AndrewB's superb diagonal planking, however.

Derek, perhaps I'm also a dingbat, as I'm currently building a freelance pusher tug of my own design for 3 of my grandsons and, while the hull is almost finished, I haven't decided on the superstructure either. I'm just making it up as I go along  O0

Peter.
Title: Re: PT Boat build
Post by: RaaArtyGunner on October 12, 2010, 03:46:44 am
Peter,

Isn't Lennox north of Derek AKA Woolloongonggggggggggggggggggggg  %)
Title: Re: PT Boat build
Post by: derekwarner on October 12, 2010, 06:06:13 am
Thanks for the saving grace Peter  :embarrassed: :embarrassed: ...naturally the version of my utterance was .... the spaced out an ornamental character  ./..type ...Derek {-)
Title: Re: PT Boat build
Post by: AndrewB on October 12, 2010, 06:46:29 am
Fair suck of the sav, my topic has gone off like a bucket of pawns in the sun  %% {-)
Title: Re: PT Boat build
Post by: RaaArtyGunner on October 12, 2010, 06:57:52 am
Andrew,

Ignore them %) %) Keep at it  :-)) :-)) awesome build. O0 O0
Title: Re: PT Boat build
Post by: derekwarner on October 12, 2010, 07:08:05 am
Guys....I have sent a PM to moderator Peter Fitness requesting thread postings #37 to #44 inclusive be deleted........& an apology PM to Andrew  :embarrassed: ....

Andrew...I had previously offered praise for your excellent build to date....was just sort of shocked when you acknowledged no plans for upstairs......... O0 .....Derek
Title: Re: PT Boat build
Post by: AndrewB on October 12, 2010, 07:31:16 am
Its a giggle, I need a laff after a hard day at office
Title: Re: PT Boat build
Post by: Peter Fitness on October 12, 2010, 07:43:55 am
Posts removed as per Derek's request, although I'm sure no one was offended by them....were they??

Peter Fitness
Moderator
Title: Re: PT Boat build
Post by: RaaArtyGunner on October 12, 2010, 07:52:02 am
Posts removed as per Derek's request, although I'm sure no one was offended by them....were they??

Peter Fitness
Moderator

Peter, 

Not I, but as it is Andrew's build/thread will abide with his call.
Title: Re: PT Boat build
Post by: AndrewB on October 12, 2010, 08:14:22 am
Not me, I'm a Kiwi  :-))
 
But I still need some superstructure drawings  <:(
Title: Re: PT Boat build
Post by: Perkasaman2 on October 12, 2010, 08:55:39 am
Hi AndrewB, This link may help with a plan to build either a late war version (plan CF12) or the earlier layout (plan CF4) with launch tubes for the torpedoes. The plans are drawn in 1:32 scale:

http://www.coastalforcesplans.com/id1.html             
Title: Re: PT Boat build
Post by: shipwright65 on October 12, 2010, 08:37:54 pm
Nice Build
if you can get hold of Wooden Boat Magazine issue 129 (March/April 1996) there are several drawings there of superstructure layouts.
Title: Re: PT Boat build
Post by: AndrewB on October 16, 2010, 12:43:23 am
Hello Mayhemers

Just a small update


(http://s4.postimage.org/x13kr.jpg) (http://postimage.org/image/1v1hpf690/)

(http://s4.postimage.org/x15PA.jpg) (http://postimage.org/image/1v1jcyiqs/)

(http://s4.postimage.org/x1kNr.jpg) (http://postimage.org/image/1v1ta6lpg/)

(http://s4.postimage.org/x1uM0.jpg) (http://postimage.org/image/1v1zwbzok/)
Title: Re: PT Boat build
Post by: AndrewB on October 26, 2010, 10:53:17 am
Hi All

I am having a real problem with the superstructure build, the ply I have seems to want to warp too much, I am using 1.5mm ply I think I will try the 3mm I have, What do you guys think?
Title: Re: PT Boat build
Post by: derekwarner on October 26, 2010, 12:18:42 pm
Andrew...is easy for me to say  ;D.........but if the 1.5 mm ply is warping....we could question that it may not being supported adequately

Post a few .jpgs.....& am sure a professional model boat builder here @ Mayhem will help with your question.........Derek :-))
Title: Re: PT Boat build
Post by: Danny on October 26, 2010, 12:21:18 pm
Hi,
Might  be  a  bit  late  for  you  but  there  are  a  series  of  drawings  online  here 

http://louisdl.louislibraries.org/cdm4/index_HIC.php?CISOROOT=%2FHIC

“Higgins  Motor  Torpedo  Boat  Diagram  collection”

Regards

Danny

Title: Re: PT Boat build
Post by: AndrewB on November 10, 2010, 09:22:02 am
Hi all it's been a while. all go here in NZ

So this is what I have been doing
(http://s1.postimage.org/z0jr37k4/DSC09636.jpg) (http://postimage.org/image/z0jr37k4/)

(http://s1.postimage.org/z1a7orgk/DSC09637.jpg) (http://postimage.org/image/z1a7orgk/)

(http://s1.postimage.org/z1k4wuf8/DSC09639.jpg) (http://postimage.org/image/z1k4wuf8/)
Title: Re: PT Boat build
Post by: AndrewB on November 13, 2010, 08:48:34 am
The Radar mast at the moment
(http://s4.postimage.org/16ystokx0/DSC09672.jpg) (http://postimage.org/image/16ystokx0/)

(http://s4.postimage.org/16yuh7xes/DSC09674.jpg) (http://postimage.org/image/16yuh7xes/)
Title: Re: PT Boat build
Post by: AndrewB on November 25, 2010, 04:34:27 am
Slow progress at the moment  :((

I am waiting for my shafts, motors, props, shaft couplings and rudders from Westbourne Models, They will not reply to my e-mails and I want to know if they have gone and if so how so I can at least track it. Very frustrating, I spent a lot of money and I have nothing to show for it yet!!  >>:-(


Enough of the rant

Andrew
Title: Re: PT Boat build
Post by: RaaArtyGunner on November 25, 2010, 12:32:15 pm
Andrew,

Can relate, it is very frustrating when that happens it really is bad customer service.  <:( <:( <:(
Title: Re: PT Boat build
Post by: leggolon on November 25, 2010, 03:24:51 pm
Sometimes companies shut down for a short period to take a yearly inventory, frustrating is'nt it.................................................Larry G.
Title: Re: PT Boat build
Post by: AndrewB on November 26, 2010, 04:21:39 am
Well I have had a reply from Westbourne today, So feeling a bit better  :-)
Title: Re: PT Boat build
Post by: Bugsy on November 26, 2010, 08:11:22 am
Regarding the ply warping try some simple bracing.

(http://i129.photobucket.com/albums/p211/Bugbear2/P1000421.jpg)

Courtesy of MacDonalds and their wonderful coffee stirrers  :-))
Title: Re: PT Boat build
Post by: Gra on November 26, 2010, 08:22:18 am
What about Float A Boat in Melbourne for your parts.
They handle everything for model boating.Have a look at website.
Just trying to help.Have purchased from Westbourne myself in the past with mixed results.

Gra
Title: Re: PT Boat build
Post by: AndrewB on November 26, 2010, 07:25:11 pm
Regarding the ply warping try some simple bracing.

(http://i129.photobucket.com/albums/p211/Bugbear2/P1000421.jpg)

Courtesy of MacDonalds and their wonderful coffee stirrers  :-))

Thanks Bugsy, Our Mcdees has plastic coffee stirrers, good old green New Zealand
Title: Re: PT Boat build
Post by: AndrewB on November 26, 2010, 07:29:33 pm
What about Float A Boat in Melbourne for your parts.
They handle everything for model boating.Have a look at website.
Just trying to help.Have purchased from Westbourne myself in the past with mixed results.

Gra

Thanks for that Gra, Ill have a look for the next build  :-))
Title: Re: PT Boat build
Post by: Peter Fitness on November 27, 2010, 09:04:47 pm
I can recommend Float a Boat unreservedly. They are an excellent company with a good range of model boat related products, and Adrian and Rhonda Brewer will go out of their way to help you  O0

Their web site is here http://www.floataboat.com.au/history.htm (http://www.floataboat.com.au/history.htm)

Peter.
Title: Re: PT Boat build
Post by: brianB6 on November 27, 2010, 09:43:37 pm
I can confirm that.
They even come and watch us playing model boats.
They have lots of items that are not on the website as well, so ask them.
Title: Re: PT Boat build
Post by: AndrewB on November 28, 2010, 09:35:45 am
Thanks Peter and Brian :-)
Title: Re: PT Boat build
Post by: AndrewB on November 30, 2010, 07:28:18 am
Hello all I hope I find you well  O0

Well I have made a wee bit of progress


(http://s4.postimage.org/1i7w78b38/DSC09735.jpg) (http://postimage.org/image/1i7w78b38/)

(http://s4.postimage.org/1i7xurnl0/DSC09737.jpg) (http://postimage.org/image/1i7xurnl0/)

(http://s4.postimage.org/1i87rzqjo/DSC09734.jpg) (http://postimage.org/image/1i87rzqjo/)
Title: Re: PT Boat build
Post by: AndrewB on December 11, 2010, 10:00:03 am
Shaft support brackets have been started.
(http://s1.postimage.org/24uusoiv8/CIMG3554.jpg) (http://postimage.org/image/24uusoiv8/)
Title: Re: PT Boat build
Post by: AndrewB on December 12, 2010, 04:10:35 am
The latest installment, the center prop and rudder don't line up, will it affect the performance? I would rather not redo the rudder if I can avoid it. What do you guys think  {:-{   
(http://s3.postimage.org/2h0z9r2f8/CIMG3557.jpg) (http://postimage.org/image/2h0z9r2f8/)

(http://s3.postimage.org/2h148d3wk/CIMG3561.jpg) (http://postimage.org/image/2h148d3wk/)

(http://s3.postimage.org/2h1t1fbb8/CIMG3562.jpg) (http://postimage.org/image/2h1t1fbb8/)
Title: Re: PT Boat build
Post by: derekwarner on December 12, 2010, 05:24:12 am
Andrew......when we review the snaps from Reply #66 on: November 30, 2010, 07:28:18 AM » as below....the alignment between the three prop shafts & rudders appears OK.......

So what happened?....did the center prop shaft axis move? prior to epoxy bonding?

1. we as model builders are our own best & our own worst critics
2. 95% of people viewing you vessel would not notice the glitch
3. 5% may question the alignment
4. you could prepare a document available to all... to state that the second counter rotation propellor direction requires a 5.232' degree rudder offest  to compensate for the second propellor..... :o %) {-)
5. you could realign the center prop shaft & rudder  <:( :-X

Derek  ;)
Title: Re: PT Boat build
Post by: AndrewB on December 12, 2010, 06:26:16 am
 :-))  Thanks for that Derek.

Andrew......when we review the snaps from Reply #66 on: November 30, 2010, 07:28:18 AM » as below....the alignment between the three prop shafts & rudders appears OK.......

So what happened?....did the center prop shaft axis move? prior to epoxy bonding?

1. we as model builders are our own best & our own worst critics
2. 95% of people viewing you vessel would not notice the glitch
3. 5% may question the alignment
4. you could prepare a document available to all... to state that the second counter rotation propellor direction requires a 5.232' degree rudder offest  to compensate for the second propellor..... :o %) {-)
5. you could realign the center prop shaft & rudder  <:( :-X

Derek  ;)
Title: Re: PT Boat build
Post by: AndrewB on January 01, 2011, 08:50:46 am
Ok

The boat got its props wet today, is it running a bit wet? IWhat do you experts  ;) think? I think I need to do some sorting out.


http://www.youtube.com/user/oOandrewbOo?feature=mhum#p/a/u/0/jEvR1VUDTsw
Title: Re: PT Boat build
Post by: Gra on January 01, 2011, 10:29:09 am
Hi Andrew, how many batt. packs are you using in boat.I use a pack for each motor in my 1/24 Elco and it does get up and plane quite well.
You also need to place the batts so the boat sits right in the water.
My boat runs slow on centre motor and when i push throttle hard forward a relay kicks in flank motors for high speed .
A mate of mine has run a 1/20 scale Elco like yours using speed 600 motors on 8.4 volts for each motor with the relay system above with great success.But the boat needs to be well balanced.
After looking at your video i feel you need more speed and better balance.

Gra
Title: Re: PT Boat build
Post by: AndrewB on January 01, 2011, 10:47:16 am
Hi Andrew, how many batt. packs are you using in boat.I use a pack for each motor in my 1/24 Elco and it does get up and plane quite well.
You also need to place the batts so the boat sits right in the water.
My boat runs slow on centre motor and when i push throttle hard forward a relay kicks in flank motors for high speed .
A mate of mine has run a 1/20 scale Elco like yours using speed 600 motors on 8.4 volts for each motor with the relay system above with great success.But the boat needs to be well balanced.
After looking at your video i feel you need more speed and better balance.

Gra


Hi Gra
I am only running 1 8.4 volt battery split between the 3 Speed 600 motors. Ill have a play around over the next while, as I do have a bit of work on the cabin and deck
Title: Re: PT Boat build
Post by: AndrewB on January 01, 2011, 08:57:20 pm
Hay Gra

What props was your mate running with his 1:20th Elco?
Title: Re: PT Boat build
Post by: Gra on January 03, 2011, 08:55:45 am
Andrew
My mate no longer has his Elco but his recollection is that he used 35mm 3 blade props.
Hope this helps.

Gra
Title: Re: PT Boat build
Post by: AndrewB on January 03, 2011, 09:29:31 am
Thanks Gra, that is what I am running
Title: Re: PT Boat build
Post by: DickyD on January 03, 2011, 09:35:37 am
Andrew......when we review the snaps from Reply #66 on: November 30, 2010, 07:28:18 AM » as below....the alignment between the three prop shafts & rudders appears OK.......

So what happened?....did the center prop shaft axis move? prior to epoxy bonding?

1. we as model builders are our own best & our own worst critics
2. 95% of people viewing you vessel would not notice the glitch
3. 5% may question the alignment
4. you could prepare a document available to all... to state that the second counter rotation propellor direction requires a 5.232' degree rudder offest  to compensate for the second propellor..... :o %) {-)
5. you could realign the center prop shaft & rudder  <:( :-X


Derek  ;)
Come on Derek, the problem is that the centre rudder isn't quite vertical. Not a lot out, just a bit.
Title: Re: PT Boat build
Post by: AndrewB on January 05, 2011, 07:19:26 am
Hello all you boat builders

Well I have been pottering about, on the cabin and the start of the mufflers


(http://s3.postimage.org/22fixyd8k/DSC09823.jpg) (http://postimage.org/image/22fixyd8k/)

(http://s3.postimage.org/22g9ejx50/DSC09825.jpg) (http://postimage.org/image/22g9ejx50/)

(http://s3.postimage.org/22h9sdk04/DSC09826.jpg) (http://postimage.org/image/22h9sdk04/)

(http://s3.postimage.org/22hrzadfo/DSC09831.jpg) (http://postimage.org/image/22hrzadfo/)

(http://s3.postimage.org/22ik3f9tw/DSC09833.jpg) (http://postimage.org/image/22ik3f9tw/)
Title: Re: PT Boat build
Post by: Pat Matthews on January 09, 2011, 02:44:22 am
Aren't PT's fun? I especially like the diagonal planking, so much more enjoyable than fitting longitudinal planking on a traditional hull.

Where I live (Michigan), we have humidity swings which create havoc on wood models. My PT was at first only resin coated over the basswood (lime) planking... before it ever went in the water, the seams had opened up! Resin alone won't stop the wood from working, it has no tensile strength. I ended up stripping the paint after most of the rest of the model was built, in order to apply a light layer of glass. Quite annoying, but I won't build another planked hull without glass on the outside.

You don't mention the plank thickness... ages ago, I built a 1:20 80 footer with 2 layers of 1/16" (1.5mm) planking... oh, it was heavy! And these models don't like heavy. My 2nd model was done with 2 layers of 1/32" (0.75mm) bass... with 3x 600 motors and 2x battery packs, it needed zero ballast. You can see it at:
http://matthewsmodelmarine.wordpress.com/writings/pt-41-building-one-of-the-expendables/

(http://s3.postimage.org/1bqu7at38/pt_run2.jpg) (http://www.postimage.org/)
Title: Re: PT Boat build
Post by: Martin13 on January 09, 2011, 07:01:25 am
Pat, enjoyed your site, book marked for future reference.

Great job AndrewB - keep it up... :-))

Martin doon under
Title: Re: PT Boat build
Post by: AndrewB on January 09, 2011, 07:16:43 am
Thanks Pat and Martin for your comments.
Pat I have been to your site many times, fantastic work I must say!
Title: Re: PT Boat build
Post by: AndrewB on January 22, 2011, 07:45:52 am
Hello All

Well I have been doing some building over the last few days Mufflers, Day cabin

(http://s3.postimage.org/1rkkz4edg/CIMG3610.jpg) (http://postimage.org/image/1rkkz4edg/)

(http://s3.postimage.org/1rkmmnqv8/CIMG3611.jpg) (http://postimage.org/image/1rkmmnqv8/)

(http://s3.postimage.org/1rkwjvttw/CIMG3613.jpg) (http://postimage.org/image/1rkwjvttw/)

(http://s3.postimage.org/1rl84n9ac/CIMG3614.jpg) (http://postimage.org/image/1rl84n9ac/)
Title: Re: PT Boat build
Post by: AndrewB on May 28, 2011, 06:26:55 am
Hello All
Just doing a bit of work as I get the chance....It's starting to get a bit chilly out in the shed now. So some green primer, more sanding.I need to sort out what I am going to do with the 50 cals and mounts.
(http://s2.postimage.org/2x6ame7c4/IMG_4993.jpg) (http://postimage.org/image/2x6ame7c4/)

(http://s2.postimage.org/2x6zfgeqs/IMG_4997.jpg) (http://postimage.org/image/2x6zfgeqs/)

(http://s2.postimage.org/2x8be1h2c/IMG_5000.jpg) (http://postimage.org/image/2x8be1h2c/)
Title: Re: PT Boat build
Post by: Peter Fitness on May 28, 2011, 06:31:46 am
It's starting to get a bit chilly out in the shed now.

Chilly?? In Wellington?? Who would have thought such a thing? :o %%  {-)

Your boat's coming along nicely, Andrew, it's looking good  :-))

Peter.
Title: Re: PT Boat build
Post by: AndrewB on May 17, 2012, 06:30:04 am
Hay all

Im not sure what has gone on with my log in.....I had to re join  {:-{ anyway not much done on the PT, Lack of a job means lack of funds and lack of time.....job hunting is a full time job  <*<
Title: Re: PT Boat build
Post by: wbeedie on May 18, 2012, 01:49:04 pm
The site went down for a while Andrew , think most people had to re register , it was bad I couldnt get my MBM fix for too long
Title: Re: PT Boat build
Post by: AndrewB on February 27, 2013, 05:42:32 am
 :-)  Hi guys, how are we all, Just let you know I am pottering along with the PT. I will post updates and pictures soon 


Andrew
Title: Re: PT Boat build
Post by: AndrewB on February 27, 2013, 05:44:34 am
will I have to do the silly verification every time I post?!..........MAD
Title: Re: PT Boat build
Post by: Perkasaman2 on February 27, 2013, 12:11:31 pm
Good to see you back.  :}  pm a moderator and they should be able to reconnect your previous posts. Come to think of it I need to have them do the same for myself.  %) 



Title: Re: PT Boat build
Post by: AndrewB on July 24, 2014, 11:51:02 am
Hello everyone
I am still about, the PT Boat has taken a we bit of a back seat, as I have another project on the go.......House renovations....Big ones.
Title: Re: PT Boat build
Post by: AndrewB on July 24, 2014, 11:56:40 am
Can someone please sort out the stupid verification thing, It drives me mad! If I have to do it every post I wont bother with the site, sorry
Title: Re: PT Boat build
Post by: Martin (Admin) on July 24, 2014, 01:13:43 pm
You've got 5 post now, that's it!  :-)
Title: Re: PT Boat build
Post by: AndrewB on August 13, 2014, 06:57:43 am
Cheers  :-))
Title: Re: PT Boat build
Post by: AndrewB on January 13, 2016, 10:52:39 pm
latest sea trial, I have some of the weapons coming from Shapeways

https://youtu.be/l7pg-2ySs2g
Title: Re: PT Boat build
Post by: Martin (Admin) on January 14, 2016, 06:38:55 am
 
Rides well.   :-))
Title: Re: PT Boat build
Post by: bubbletop409 on January 15, 2016, 04:59:55 am
Hi Andrew

I am currently building a 1/20th Elco based on John Drains laser cut keel and rib kit. His shapes make a very accurate hull. You will love Shapeways weapons, I used some on my Higgins Hellcat and was very pleased with the detail and quality. They also have 1/20th PT crew personnel in various poses available now, by a different designer.

Your boat looks great, and performs well in your video.
Title: Re: PT Boat build
Post by: AndrewB on January 15, 2016, 05:33:18 am
Hi ya
Thanks for your comments. Mine is based on Johns hull 1, he made the drawings available for free for a while. It has gone together pretty well.