B-17 Underbelly Color. - Page 10 - Aircraft of World War II

B-17engineer · 10-17-2009, 09:57 PM

I really love modeling, no doubt and will continue the hobby for many years to come

vikingBerserker · 10-17-2009, 10:29 PM

I assume the outside wood is balsa, what do you use on the frame work?

Thebuilderofthings · 10-18-2009, 01:54 AM

Quote:

Originally Posted by vikingBerserker

I assume the outside wood is balsa, what do you use on the frame work?

The ribs and all fuselage bulkheads are balsa laminated. I epoxied three 4"x48" by whatever thickness sheets together. The middle would be cross grain. The fuse would use three 1/8" laminates while the ribs would use three 3/32". The entire sheeted airframe will then be fiberglassed.

vikingBerserker · 10-18-2009, 01:56 AM

Wow, that is pretty impressive.

Thebuilderofthings · 10-18-2009, 01:59 AM

Quote:

Originally Posted by vikingBerserker

Wow, that is pretty impressive.

Page 1 actually shows you a picture of a fuse bulkhead done this way. Check it out.

Thebuilderofthings · 10-18-2009, 07:52 PM

. 'Shady Lady'. I might use this one but I would have to go to a natural aluminum finish. Still thinking.

Thebuilderofthings · 10-20-2009, 11:13 PM

Another odd piece to work out here.

Thebuilderofthings · 10-20-2009, 11:16 PM

Here is the filler piece.

Thebuilderofthings · 10-20-2009, 11:19 PM

Now it's glued in but with a gap. I'll fix that here in the next shot.

Thebuilderofthings · 10-20-2009, 11:24 PM

Just make up a little sawdust...

Thebuilderofthings · 10-20-2009, 11:31 PM

Fill the gap with the sawdust then lay it up with CA glue and you've got a great gap filler.

Thebuilderofthings · 10-20-2009, 11:40 PM

So here is one side in the rough...

Thebuilderofthings · 10-20-2009, 11:43 PM

...and the other.

Thebuilderofthings · 10-20-2009, 11:48 PM

On with the balsa filler. This stuff is dirt cheap and you can get it at any good hardware store. I use a lot of it!

Thebuilderofthings · 10-20-2009, 11:51 PM

This shows you what will be accomplished prior to sanding.

10-17-2009, 09:57 PM	#136
B-17engineer Senior Member Join Date: Dec 2007 Location: New Jersey..The Garden State! Posts: 9,209	I really love modeling, no doubt and will continue the hobby for many years to come __________________ Sh! I'm hunting Wabits! http://www.youtube.com/watch?v=Pe36UMRkRbk

10-17-2009, 10:29 PM	#137
vikingBerserker Senior Member Join Date: Apr 2009 Location: South Carolina Posts: 6,192	I assume the outside wood is balsa, what do you use on the frame work? __________________ Take arrows in your forehead, but never in your back. - Samurai maxim

10-18-2009, 01:56 AM	#139
vikingBerserker Senior Member Join Date: Apr 2009 Location: South Carolina Posts: 6,192	Wow, that is pretty impressive. __________________ Take arrows in your forehead, but never in your back. - Samurai maxim

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10-18-2009, 07:52 PM	#141
Thebuilderofthings Senior Member Join Date: Sep 2009 Location: Kent, Washington Posts: 128	. 'Shady Lady'. I might use this one but I would have to go to a natural aluminum finish. Still thinking.

10-20-2009, 11:13 PM	#142
Thebuilderofthings Senior Member Join Date: Sep 2009 Location: Kent, Washington Posts: 128	Another odd piece to work out here.

10-20-2009, 11:16 PM	#143
Thebuilderofthings Senior Member Join Date: Sep 2009 Location: Kent, Washington Posts: 128	Here is the filler piece.

10-20-2009, 11:19 PM	#144
Thebuilderofthings Senior Member Join Date: Sep 2009 Location: Kent, Washington Posts: 128	Now it's glued in but with a gap. I'll fix that here in the next shot.

10-20-2009, 11:24 PM	#145
Thebuilderofthings Senior Member Join Date: Sep 2009 Location: Kent, Washington Posts: 128	Just make up a little sawdust...

10-20-2009, 11:31 PM	#146
Thebuilderofthings Senior Member Join Date: Sep 2009 Location: Kent, Washington Posts: 128	Fill the gap with the sawdust then lay it up with CA glue and you've got a great gap filler.

10-20-2009, 11:40 PM	#147
Thebuilderofthings Senior Member Join Date: Sep 2009 Location: Kent, Washington Posts: 128	So here is one side in the rough...

10-20-2009, 11:43 PM	#148
Thebuilderofthings Senior Member Join Date: Sep 2009 Location: Kent, Washington Posts: 128	...and the other.

10-20-2009, 11:48 PM	#149
Thebuilderofthings Senior Member Join Date: Sep 2009 Location: Kent, Washington Posts: 128	On with the balsa filler. This stuff is dirt cheap and you can get it at any good hardware store. I use a lot of it!

10-20-2009, 11:51 PM	#150
Thebuilderofthings Senior Member Join Date: Sep 2009 Location: Kent, Washington Posts: 128	This shows you what will be accomplished prior to sanding.