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Author Topic: La Canicule .  (Read 418 times)

KBIO

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La Canicule .
« on: October 18, 2020, 10:39:49 AM »

Hello!
Last winter , I decided to build something to fit one of my Steam Assy sleeping on the shelves. Caton/2 from MH& B and an old Cheddar return flue boiler. Micro burner BOBINO.
So I asked my friend Rookie to draw me something looking like the Opal (M.Baylis) . Rookie have two passions in his life : drawing & whiskey . %)
Although there is some differences, the launch is very similar of the original one.
You'll learn later why I call her "La Canicule" although some have already guessed!
Let's go! :-)
First gluing the ??? I realize that my vocabulary is poor in English. Do not hesitate to teach me.
Cheers.
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Mark T

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Re: La Canicule .
« Reply #1 on: October 18, 2020, 11:02:55 AM »

Good luck with this build - I'll be watching this one  :-))

derekwarner

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Re: La Canicule .
« Reply #2 on: October 18, 2020, 12:09:49 PM »

OK....you know I watch your postings on the other FROGGY web sites {-) , but please KBIO,.....also post them here for all to see! .....


PS....I always thought rookie78 was as they say 'Tea-Total'.......which means he does not partake in the Demon drink  >>:-(


Derek
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KBIO

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Re: La Canicule .
« Reply #3 on: October 18, 2020, 01:33:58 PM »

Hello!
 I already made a mistake. :embarrassed:
The Canicule is mounted withe a 3CC JMC and a Regner Boiler..... FORGET the Caton2 and the Cheddar boiler which are in another boat..
You see Derrek , I probably undergo my friend Rookie vapors of the demon drink (and I share!) . I count on you to correct my posting as you know them all on the froggy forum! :-))


Keep safe!
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KBIO

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Re: La Canicule .
« Reply #4 on: October 20, 2020, 11:32:51 AM »

Hello!
After cutting the frame and the keel, it is time to line up every thing on the rig .

Then not forget and preparing for the propeller implementation and line in.

Also, I run a plank alongside the hull from up to bottom to ensure that it is smooth with no bumps in & out.


When all is in place, I can start to glue the planks next ! :-)
Regards.


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belli

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Re: La Canicule .
« Reply #5 on: October 20, 2020, 09:39:10 PM »

Bonjour KBIO,


J'ai de nombreuses questions...


Were the drawings done with CAD or were they drawn by hand?
What is the overall size of the launch (approx)?
Why are you drinking whiskey?  Do the French not have some fine spirits of their own?


There are many more but as your build progresses I am sure I will have my answers.

 Please post many photos! 


Bellisimo!






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KBIO

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Re: La Canicule .
« Reply #6 on: October 21, 2020, 04:19:22 PM »


Hello!
When everything is held in place, square and line up properly, I check the edge of each frame and file it to make sure that the plank will stick on the whole side.
Then I braze the etambot bracket and I glue it with epoxy in place in the keel. I shape each end of each plank by removing < than 1/3 to allow a complete covering without dirty patches. I do that by taking 4 or 6 of them together and sand paper them on my belt sander. I then do the same on the full edges inclining by +/-15°


When this is done, I sand paper the hull until I do not see any default : bumps or hollows. There should not be any problem if the work has been done properly in the first place .
Then, when finished and sand papered once more, in a can , I mix white glue with dustwood and a bit of water to spread it all over the inside and the outside.This is ugly but it fills up the little gaps left.


Letting dry for 24H00 or more! And back to sand paper again. grain 80/120.


Following step is to apply a 25 g/m2 of fiber glass sticked with 50 g of resin and enough methylated spirits to have it as fluid as water . I apply the mixture on the cloth with a round paint brush and I flat the folds. I spread  it on the outside only. One layer is enough.
At this step, some will ask why to apply fiber glass ? There is so many judicious argument in this matter that I will give only my personnal reason.
- I build my hulls with a 2mm thick wood planks. I sand paper a lot and there is only 1 mm thickness left at some places . So the tissue reinforces without adding too much weight. < 70 g.
Finally  I apply the two-componants patty with a small flat piece of  rubber 5mm thick. If the job has been done properly in the first place, it is a pleasure to apply a thin film of it. No sweat to sand paper …. again with grains from 120 to 250.


At the end she weights less than 700 g.
Time to glue the supports for the steam plant inside the hull and to go for painting.


Were the drawings done with CAD or were they drawn by hand?
   -They are made with CAD from pictures and photos. What is the overall size of the launch (approx)?
   - She is 113 cm long by 20 cm wide. The draught is only 3 cm . The deepest being the bottom of the rudder bracket.Why are you drinking whiskey?  Do the French not have some fine spirits of their own?
   - LOL! Some french people are still open minded and appreciate cultural exchanges between friends ! I avoid people drinking only Coca!
%)

Note: The prime goal was to build a launch more or less, copied on what Martin Bayliss does. I found out that there is not too much difference between the Topaz and the Opal , so we could use the same drawing. First we worked on a kind of  Topaz.   The building is different as well as some details  : the bow for example is rounded and some others. No need to be an expert to find out that they are different boats.
The pleasure being to build rather than to buy , we asked some informations to Martin that he kindly answered. Then Rookie , the bottle on the left side , the glass on the other side and the screen in front worked it out . This guy is a genious engineer as he thinks of everything.
You ask him to draw you a simple swing for your kid and he comes back to you the day after , with a complete drawing of Dysney World!! :-))
We’ll talk of the (copy) Topaz in another post.
That’s all I have to do these days.
Thanks for you interest.
Regards.
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KBIO

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Re: La Canicule .
« Reply #7 on: October 21, 2020, 04:39:28 PM »

Good evening.
Some more pics to help following up.
Kind regards.

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KBIO

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Re: La Canicule .
« Reply #8 on: October 23, 2020, 07:53:48 AM »

hello!
I pass over the drudgery of the painting and present right away the more interessant work.


The empty launch.
Presentation of the steam plant.
JMC 3cc / Regner boiler


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KBIO

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Re: La Canicule .
« Reply #9 on: October 23, 2020, 08:07:32 AM »

More!
The fitting of the steam plant inside the hull and trials in the kids swimming pool.
I switched off evrything after 30 min @ 1000 RPM - 2.5 b inside the boiler.
Propeller 60 mm


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KBIO

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Re: La Canicule .
« Reply #10 on: October 24, 2020, 07:37:28 AM »

Hello!
Everything is fine and this launch needs a bit of finish and details.


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KBIO

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Re: La Canicule .
« Reply #11 on: October 24, 2020, 07:44:08 AM »

And a few last shots to end up with this post ! ok2


And a quick video to show her floating !


https://youtu.be/Fkhy3hUfl9o


Have a nice weekend!
Regards.
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derekwarner

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Re: La Canicule .
« Reply #12 on: October 24, 2020, 08:49:32 AM »

I didn't realise your feet were so small KBIO........ ok2  ..................


This appears to be a wonderfully aggressive pitch steam propeller.......what is the vessel weight?, & how does the JMC3V handle it?


Derek


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rhavrane

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Re: La Canicule .
« Reply #13 on: October 24, 2020, 10:10:53 AM »

Bonjour,
Opal is a very thin launch, a 3 cm3 is almost too much for her, she will be fast but will perhaps loose a part of her autonomy.
My firnd Alain has one, here she is based on the full MH&B kit:
https://www.youtube.com/watch?v=FFDUHE-z80Y and on the water https://www.youtube.com/watch?v=GYHqMWsxXiI  and she sings  :-))
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Mark T

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Re: La Canicule .
« Reply #14 on: October 24, 2020, 04:24:27 PM »

KBIO - I think that is a very beautiful boat that you have made there.  It must have taken you quite a long time to complete but the result is fantastic  :-))

KBIO

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Re: La Canicule .
« Reply #15 on: October 24, 2020, 07:04:13 PM »

Hello!
Thank you Mark! I have to  say that I enjoy following your post on your tug too.[size=78%]Always something to learn ![/size]

Yes Derek, the propeller is a Raboesh that I twisted a bit to give more pitch. How much ? .... some !!;-))
 I guess that I increased the slippage a lot , but without investigating more, it woks fine. No idea of the RPM in the water though!
It keeps the boiler pressure up to 3b when I am "Full Ahead" and the speed  seems OK  ! So ....Sail @ fun !
The launch weights 3.9 kg with all fluids and gas = all wet and full  ! ;)


Thanks for your kind attention.
Regards.
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Re: La Canicule .
« Reply #16 on: Yesterday at 07:36:58 PM »

Nice work! Please tell more about the performance. Or do you have a video showing full speed?
I was told by Mr. Regner (when he was alive) that the boiler model you have is very powerful and would steam every engine in the Regner Range. So a 3 cc engine should be piece of cake :-)
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KBIO

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Re: La Canicule .
« Reply #17 on: Today at 04:47:35 PM »

Hello KNO3.
The video link that I give above shows the best I can get.
Just notice that there is no power loss when turning sharply .
To increase the speed ,  I need to increase the pressure over 2.5b, and fully open up the steam valve to the engine. The effect will be ; bigger steam consumption with  more RPM and ….. increase of  the bow wave  , so more water resistance! This is where the problem stands!!) .
At he end , I’ll have a negligeable gain of speed but a bigger steam consumption. The faster we go , the bigger the bow wave is and the gain is nil ! Marine engineers as familiar with this problem. There is a critical speed that we cannot go over in our available range of  power.
But as long as the boiler pressure remains steady  and the speed look realistic , that fits me well!



Before Manfred came out with this new boiler, he had two types of boilers on his catalogue.
The small ones to feed Lily’s and Piccolo’s type engines = +/- 2 cc to 4 cc , and single & double burners(pic below) ones for the Neptune engine = 11cc and above.
When he died, they stopped the production of the big boilers as there was probably not enough demand .
Now , when we compare the « Kessel Maxi » (like mine) and the « Kessel compact » you can see that the difference in size of the furnace is the double on the « Maxi ».
https://www.regner-dampftechnik.com/dampfkessel
Without entering into calculations,  the heated surface (estimated = 1.70 dm2) is much more larger than the « Compact » ’s one , and , obviously produces much more steam  .
The Compact boilers are good for Piccolo types engine ( +/- 4cc) , so the « Maxi" is far more than suitable for a 3cc engine ! (quod erat demonstrandum)[/size].[/color]

May be good to calculate how it behaves with the new Neptune  = +/-11cc


 I know only two suppliers manufacturing BRASS boilers ; REGNER & SAÏTO
All the others are COPPER made. If anyone can tell me why , I would appreciate.
(I do not consider Mamod, Wilesco and similar lwo pressure vessels which are quite different of what we work with)
If I may say so, Regner overheats the steam out of the boiler by passing through the furnace. The engine steam inlet then , temp is far above what it is needed for an « honnest » overheated saturated steam .
Too hot steam may bring some problems on O’rings, lack of lubrication, and as I’ve seen it, melting tin soldered connections.
I do not like the flare touching the steam line. A couple of loops inside the chimney is more than enough to overheat the steam by some °C.


Best regards.
 
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