RE: Bernard Dumas' Canadair CL-215  
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RE: Bernard Dumas' Canadair CL-215 - 2/11/2007 2:15:36 PM   
FL510



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I wish I did mine that way. I learned that hinging technique after I had already hinged my surfaces.


Jed

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RE: Bernard Dumas' Canadair CL-215 - 2/13/2007 7:39:48 PM   
g_boxwood



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I attached a sample of the plans I'm developing... I still need to fix some details here and there and all I can say is that it can be (= indeed is) a time-comsuming process. A lot of thinking is involved as you have to figure out everything 2D without being able to put it together 3D under your own eyes and without being able to tell from the facts if it is the best solution possible. Needless to say some bugs/improvements will be discovered as the building begins... I know it.

Anyway, the stab and elevator are really simple, straight symmetric surfaces, a nice starting point although I began the re-drawing process from the fin and rudder (swept and tapered) back to the end of December.

I included all the patterns and their layout on stock sheets (sorry, 4" x 40" European) to provide the required bill of materials. I hate plans w/o patterns that require you to make a lot of copies just to get ready to cut some wood...

I will keep you updated.

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Giacomo 'g_boxwood' Bosso

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RE: Bernard Dumas' Canadair CL-215 - 2/13/2007 7:42:29 PM   
iquique_32


 

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hello, you have photos of the wings, they are possible to be seen if you can since I am constructing the airplane and I am guiding myself by your photos, hopefully you can help Marco

from Chile

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RE: Bernard Dumas' Canadair CL-215 - 2/14/2007 7:36:31 AM   
g_boxwood



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Hi iquique!

Still no work on the wings... I'll re-draw them as well. What plans do you have? If you're building from Bernard's you can follow his manual:

http://bernard.dumas.chez-alice.fr/Atelier6.htm

http://bernard.dumas.chez-alice.fr/Atelier7.htm

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RE: Bernard Dumas' Canadair CL-215 - 2/14/2007 8:53:29 PM   
iquique_32


 

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I am guiding by your pictures and the URL that you gave me, I just am beginning to cut to the wood raft, I am in zero but with many desire to make this airplane, once it does it will remove photos to him so that they see it hopefully your you continue helping

Marco from Chile

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RE: Bernard Dumas' Canadair CL-215 - 2/15/2007 1:05:44 PM   
g_boxwood



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Glad you're building another CL-215 Marco!

Keep us updated and post pictures as you progress!

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Giacomo 'g_boxwood' Bosso

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RE: Bernard Dumas' Canadair CL-215 - 2/19/2007 8:05:21 PM   
CL-415


 

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FL510

I'm going to get them machined locally. But what did you use to attach everything together. Those 1/8 rod with collars?

Thanks again.

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RE: Bernard Dumas' Canadair CL-215 - 3/28/2007 6:11:51 PM   
g_boxwood



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Here I am! back to some work after one of the most boring and useless periods of my life... I won't be able to practice any sport 'till mid April but I can resume hand-works like this!

OK. Still need to get the stab and rudder plans finished and printed.

In the meantime I'm making the mold for the nose gear doors:

- covered the hull with heat-shrink covering [pic 1]
- laid some layers of f/g cloth (different weights) [pic 2]
- removed the mold and trimmed it roughly [pics 3 & 4].

The monokote-parting trick is excellent: the finish of the mold is good enough without using of any additional parting compounds. Moreover it can be applied directly to balsa surfaces allowing you to make molds at an early finishing stage.

Since it was the first time I tried it I was just a bit worried about ruining the balsa sheeting while peeling the covering off: no problem at all, just warm it and be kind! Of course, you need to lightly sand the sheeting again...

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RE: Bernard Dumas' Canadair CL-215 - 3/28/2007 6:21:31 PM   
g_boxwood



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Since the mold surface is quite big somekind of stiffening is highly reccomended: in my case stiffening comes from a wooden framework.

It is really important that the framework doesn't force the mold out of its shape (really easy as it is both thin and large): to avoid this

- glue every element of the frame with the mold positioned onto the hull where it belongs

- make sure each element is not forced hard against the mold; it only needs to contact it here and there 'cause joint strength will come from big fillets.

Pictures show:

- first 2 elements of the framework in place with epoxy and microballoons fillets
- straight trimming of the mold to accept straight framework sides
- sides in position with mold back onto the hull; sides are kept in position by masking tape;
- fillets on the inside.

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RE: Bernard Dumas' Canadair CL-215 - 3/28/2007 7:40:31 PM   
g_boxwood



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Once done with the four elements the mold feels stronger and stiffer.

The last step involves adding the base. I used Gorilla Glue for that.

Tomorrow I'll trim the base and start filling, sanding and sealing the wood to get the mold ready for priming and painting.

Attachments
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RE: Bernard Dumas' Canadair CL-215 - 4/4/2007 9:04:43 PM   
g_boxwood



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The spring-denying weather of these last few days didn't allow me to finish the mold prep in time for Easter...

Anyway, mold has been primed a number of times, filled and sanded over and over...

Notice the holes in the base-plate: they allow me to firmly grab the mold while sanding, filling and priming.

I wish a nice Easter to everyone!

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RE: Bernard Dumas' Canadair CL-215 - 4/5/2007 6:17:45 AM   
Kmot



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Hi Giacomo!

Your work continues to blow my mind!

Happ Easter to you and yours as well.

-Tom

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Ahhh......screw it!

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RE: Bernard Dumas' Canadair CL-215 - 4/5/2007 2:24:39 PM   
g_boxwood



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Thank you Tom! Very kind as usual!

Before I leave: I was contacted by a fellow modeler frome Greece, George, who has been working on Bernard's CL-215 for about 2 years now.

He told me he has trouble with posting in forums but I hope he will eventually fight his fears and share his project with us.

This is a pic of the main gear he machined on his own following Bernard's plans:



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RE: Bernard Dumas' Canadair CL-215 - 4/5/2007 9:10:43 PM   
Strykaas



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Awesome

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RE: Bernard Dumas' Canadair CL-215 - 4/23/2007 7:13:36 PM   
iquique_32


 

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I am Marco from chile, your send me the planes that you have in 3d of the wings traceras to my mail mviqq31@gmail.com, try to do them as the original plane but I me do not turn out to be I do not still have aligned, you can help with it, to the wait of your response

Marco from Chile

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