Model Boat Mayhem
The Shipyard ( Dry Dock ): Builds & Questions => Steam => Topic started by: KBIO on November 26, 2021, 04:53:44 pm
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Hello !
I've bought this Bat's hull this year and I must admit that I would have prefer to have the drawing and do it myself.
But after a bit of work, she is presentable.
As we talked about it in my previous post : Ami Gaël , I open a new topic here.
we already talked about the steam set to put in it.
I agree with the cATON which is a very (Ol') good engine and it will fit perfectly in it.
For the boiler though, I prefer to build mine.
I shall put photos and explanation later on.
For the time being a quick presentation.
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To answer to the question concerning the difference in size between the old CATON and the MK II , they are substantially identical .
I'll get back with more photos and infos as I'll have some.
Cheers!
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Hello !
First, let's talk about the boiler!
It is 10 cm wide x 12 cm High
It has been designed in order to keep the 6 boiler tubes (32mmx6mm ) in the lower horizontal furnace part .
3 more tubes are in the vertical part and will stay unerneath the water level close to the end.
This is done so to keep steam production as long as possible.
The burner is home made. Notice that there is no secondary air entrance on it. The air supply being around the burner itself.
Just for the fun, the details of the boiler.
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Tomorrow, I show the engine in place. :-))
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Interesting space saving boiler design, I know little about boiler design, so forgive me for asking, does the design have stays, rods that go through the boiler to connect the two end plates?
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Hello!
Using rods to reinforce the boiler and to avoid deformation of the the two end plates is a good idea. Personally , I do not install any when I use plates that are 2mm thick and less that 4'' diam.
And you can see that after reaching 10b (=147psi) the end is still flat.
Photo 1
On the last boiler I did , I use 1,5 mm thick on the top end. And I had a deformation when reaching 6 b(=90psi) pressure. So I ended up with my steam valve, whistle valve and safety valve bending like the Pisa tower. It took me some sweats to straighten them , and still , it is not perfect.
Photo 2.
Finally, I installed the CATON inside teh BAT.
All is in place and I should be able to steam her up in the coming days.
My only problem left is to be able to get the steam out without going along the chemney = too many elbows. But I may end up to do so. My first intention is to let the steam escaping through the "Tea pot" ! Not sure that I like it ! :embarrassed:
A few pics to get your recommendations.
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Hello !
Steam test done today.
8°C in my workshop : gas flow is weak and it took 8 min for the boiler to build up pressure to 3 b. Boiler 1/2 full only.
A bit noisy, I think ! But the CATON works good.
I need to finalize a few details and finish the set up of the shut off valve , protect the Receiver and some more ...! :-)
Hope you enjoy it.
Have a good night!
Regards.
https://youtu.be/WR_6NojYvVI (https://youtu.be/WR_6NojYvVI)
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Bonjour Yves,
Beautiful boat indeed and for the gas, you can transform even a Regner gas tank in liquid phase without adding any complcated plumbing, I did it sucessfuly on my speed steam boat : https://www.youtube.com/watch?v=1TdwdAKIFKE&t=334s
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Trés Bon Yves
Chaudière c'est manifique
Phil
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Nice work Yves, the boiler and engine fit the boat well.
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Hello !
The engine has been hidden during the sailing in order to avoid oil spilling all over the place.
I have'nt paint the servos , as Bunkerbarge does , in this boat as there is a roof , but hidden them too.
Batteries charged , oil in place ! Just need to fill up gas and waiting for the sun to get back for sailing.
Thank you for watching !
Regards
PS; first time I charge such a photo! :embarrassed:
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Always seems a pity to hide a steam engine :o >>:-( , when the vessel is on display with the decking & skylights removed ... Derek
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🙈
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Good morning !
You are absolute right Derek ! The engine is not hidden, it is just covered during the sailing to avoid the oil splash all over.
As the launch has a deck to cover the steam plant, so there is no sin to protect the inside when necessary!.
Don't worry, most of the time , the launch is open, as I also like to make the steam plant visible. That is why I build 90% of the time, open launches!
Concerning the top engine (bleed off pressure or oil injector??) , I am working on it ! I am not sure of the interest having them to oil the engine as it will oil the top part only. Maybe as a bleed off for starting !?? But this engine starts and expels the condensation right away when open the boiler ! So .... %)
Thanks for your comments!Have a good day.
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My dear KIBO...apologies, I misunderstood :embarrassed: ....but I must admit, I thought you were going crazy %%
As Engineman shows....even opening the engine space skylights shows the delights :kiss: of the engine elements
I am 22,000km away, but do not need to see the antisplash temporary engine cover in a photograph again
Derek
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Yves
[/size] [/size]Brilliant work as always, as for the sun......, if you get some sun send it up here. O0
[/size]
[/size][/size]
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Good morning!
Thank you for your encouragements ! I am working out the top elements of the engine , then !
Concerning the sun, Phil! It is so shy this morning that I do not want to make it afraid and having it hidding behind the big black clouds around!
Have a cool good day ! ok2
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Hello !
No sun Phil , and as I felt like pressure on me [size=78%] {-) [/size][size=78%], I've been in my "bouclar" this afternoon. [/size][size=78%] :-) [/size]
Tomorrow , I should be able to finish the painting and bolt the top elements on the box.
Regards.
ps: "bouclar" is an old French slung word for a kind of messy workshop in the back yard.
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Hello!
Top elements in place.
I need to work out the panel with the 3 gauges. I want to avoid to buy real manometers as it will be expensive for such a small panel. If someone has an idea, I would appreciate.
Thanks for watching.
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Fake pressure gauges...it's easy...
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Thanks Engineman!
You are right, I may end up machining them . I haver brass this size (+/-)
Print the dial and glue them.
I must have porthole glasses in my drawer , so ....life is beautiful and easy, finally!
Regards.
ps: I love the way you work ! :-))
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I used porthole glasses for mine and made pipework for the back out of painted up servo wire:
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Good to see "Old school" techniques rather than "Where can I buy". "Green" servo blends in.
Regards Ian.
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Hello!
Today I tried to make my panel. I am not happy with it and I need to do it again.The welding is not clean, the dials are pale and the glass is not clear! But at least, I know now how to do.
Back to work during the week. Thanks for sharing your ideas! ok2
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Getting closer , but can be improve still !...
Preparing for the next set ! ok2
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Looking real good cant went to se it steam on lake
My frind is buildning one now...I have don some small part for it..
120cm. 28 .cm..with Mike. mcsteam boiler and a Graham tvr1a in..
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Hello !
Lovely Berhard! You are an artist !
You definitely have to make a tutorial et show us how you make those nice gauges ! (Where do you get the dial background ?)
For the sail of my BAT, I am waiting for warmer days ! %)
Cheers !
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Many thanks for your kind words,I have a lathe and
Some brass15mm and some plexie glass and the dials
You can bay here https://www.cornwallmodelboats.co.uk/acatalog/becc_dials.html (https://www.cornwallmodelboats.co.uk/acatalog/becc_dials.html)
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Hi All
A picture of a friends build of a BAT unfortunately not completed and sadly he passed away earlier this year.
Mike
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Ohh Sorry..look nice what I can se any more photos of it...
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Hi Bernhard
Yep a number, I can send when I reduce them, perhaps better in PM ?, the hardware is all un-used !!
Regards
Mike
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Ok..Thanks..I have se your pm..
You have to make the photos smaller I think
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Have reduced in size, but no box to click to add attachments/photo
mike
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Ok.. Thanks for try..Thanks...another Time
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Hello !
She finally hit the pond ! :-)
As I wrote before, I installed the Caton inside . I had 2 bar only (boiler pressure) and the Caton needs 3 to 4 b to get enough RPM.
The videos are short but at least I can show a BAT sailing ! Now , clean and store until the text trip !
Have a nice day !
[/size][size=78%]https://youtu.be/wAVRHFg1VgY[/size]
[/size][size=78%]https://youtu.be/VcTEFkabye8[/size]
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The Bat looks lovely on the water, it looked to be coping well with the wind, well done
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Your model "Bat" looks very impressive on the water and this was a good build thread to follow.
I found this photograph of a model of the "Bat" in the 1987 book 'Radio Control in Model Boats' by John Cundell/Argus Publications.
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Hello !
Thank you Tony !
I was wondering if I install a soft roof or not ! Your photo tells me to go for it ! It gives a better look to the launch I think ! :-))
cheers !
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Hello !
Last weekend the BAT was out in the wind !
I took the cover off to see how behaves my burner in such a wind !
No problem at all and she enjoyed sailing through the waves.
For a 60 years old engine , all was fine with 3 b pushing !The boiler pressure steady so the gas tank ! I must say that the temp was about 27°C .
fortunately, the cool bowx was cool ! O0
A pleasure to play with ! :-) :-))
https://youtu.be/Tm6pNGX2XHk (https://youtu.be/Tm6pNGX2XHk)
https://youtu.be/wYZvs8LD4bs (https://youtu.be/wYZvs8LD4bs)
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Nice...what enginen is it...?
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Bonjour Yves,
A sixty years old machine ? What is it ?
Besides this, you have wonderful and efficient boats, you should come to Atlantica :-))
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For a 60 years old engine ,
Sorry ! I should have write " 30 years old" <*<
if I am not wrong , this MAX II dates from around 1990. I hope that someone can tell us more about this engine from Max Hemmens.
Thanks for the comments .
Have a good day. :-)
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I don't know what I am doing anymore ! :embarrassed:
I should think twice before answering.
The engine is a CATON as shown in the previous pics.
I apologizes ! :-) ....and quit drinking !
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:-)) Thanks..
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Hello !
Good weather and good water ! So the Bat has sailed today!
Although a few algae in the prop , that has been a nice trip !
Regards.
https://youtu.be/sjH7WGan-Io
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Bonjour Yves,
Another beautiful launch indeed :-)) She would deserve a crew with a lady and her umbrella for example ok2
And what is comong next ?
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Oh yes Bat i a great looking Launch..
Hope you one day will get a better video camera or phone..
But nice to se it again on the Pond..
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Good morning friends !
You are definitely right ! This morning I'v decided to go and buy me a correct camera and to learn how to make decent movies.
My Jurassic phone being obsolete to share good images !
Thanks for you your kind comments .
Have a nice day !
My next one should be the one bellow..
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Haaaa great with a new camera..cant vent to see the New good movies with many of you 1class steam boats and engines
And the new build .THANKS
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Hello !
You know what ? I can't find a camecorder anymore ! (unless it is a second hand) . I am so obsolete , dear (I didn't know ) that I had to change my phone for a new one to be able to film a decent video !
Today , the mobile phone is your arm/brain extension ! If you don't have any , you can't even pay your taxes ! %%
DO YOU BELEIVE IT ?
Nothing can be done without this "thing" ! I understand now , why when I talk to a youngest , he has white objects in his hears. I though that he has hearing problems due to this "bang-bang" music called RAP. NO ! He is listening something else!
Nowadays , when my grand kids come home for diner, I dress the table in a conventional manner , but I add along with knifes & forks , a clean support for them to watch their phone screen while chewing !
The good thing ! It has not replaced the toilet paper yet ! But for how long ??... :embarrassed:
I am definitely out of this new world ! But .... is it a bad thing ??
Have a good day listening to the birds ! ok2
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:-)) yes..but the new mobil phones have great cameras and you can opload your video to youtube from fast and easy i enjoy my mobile.and nearly not use the comp anymore hope you find and nice on..buy one whith a big screen..
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There's plenty of camcorcders available if you look online, a quick check on Amazon finds them from cheap to expensive. I wouldn't go for the cheap ones as the quality of the videos is unlikely to be as good as they claim but there are plenty from the major camera manufacturers like Canon, Sony or Panasonic with good resolution and decent optical zoom. Some of the better digital cameras will also take good video but don't have the same physical shape as a camcorder so not so handy to use in one hand. There does seem to be more of a move towards activity cameras such as GoPro and Insta360. These will give good quality videos but generally without optical zoom so you have to rely on a digital zoom which reduces the image quaility, thay also don't have a large screen so can be harder to see what you are shooting.
Jim
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I think the better current mobile phones can do great quality videos and photos for the needs of a model boat fan.
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Bonjour,
I confirm, smartphones are good for pictures or videos but do not manage correctly the zoom as it is electronic and not mechanical, this is why I go on using both of them.