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Classic Wings Magazine Luftwaffe Resource Center WWII Naval Aviation Research Pacific
Final Cut-The Post War B-17 Flying Fortress and Survivors - 5th Edition


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PostPosted: Mon Nov 20, 2017 6:50 am 
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I am really amazed and speechless every time i see your updates!! 8) :supz:
the workshop looks like a candy store, I would not find it a punishment to be locked up here.
Please, continue with the good work, and the nice update`s that will follow.


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PostPosted: Sat Nov 25, 2017 12:28 am 
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Well, well, well. Seems once you pull your head out and use your brain, what seems like the most difficult can be overcome. This shroud has been kicking my ass since July. Converting two piece aluminum to one piece stainless steel. It only took my Pullmax to make compound form tool, modified and new bead roller dies, wire form buck, FSP and linear stretching in the Pullmax. Then guess what, the basics of metal shaping took over. Yup, happy camper here. Dumb but happy...

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FSP (flexible surface pattern) on the two piece shroud fit to the wire form buck
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New bead roller die and lower stop ring to set the tipping point on the shroud flange
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FSP on stainless sheet for layout prior to cutting
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Compound curve form made on the Pullmax to start the flange bending by hand
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PostPosted: Mon Nov 27, 2017 11:40 am 
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The Corsair ailerons are amazing. I knew they were fabric covered, but not that they were of wood construction. Works of art I agree! Thanks for sharing all your projects with us!
:drink3:


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PostPosted: Mon Nov 27, 2017 12:38 pm 
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Your FSP is made primarily from duct tape?


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PostPosted: Mon Nov 27, 2017 1:22 pm 
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The first few layers are low stick masking tape. Then layers of staring tape. Lay the tape so the edges touch but don't overlap. Then do multilayers with strands in varying direction to the previous layer. 3 or 4 layers will be sufficient.
Carefully peel off the FPS. Use baby powder on the inside to dust off any sticky and you have a pattern that will hold 3D shape.

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PostPosted: Mon Nov 27, 2017 2:27 pm 
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NFL, that is strapping tape...Im going to kill the auto correct people if I ever find them... :evil:

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PostPosted: Wed Nov 29, 2017 12:04 pm 
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Cool! I guess that shows you where you need to do shrinking as well. Probably not stretching so much due to the fibers in the tape.


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PostPosted: Fri Dec 01, 2017 9:21 pm 
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Cooler doors and skins in the works. First the fancy 3D flash forms taken off loaner doors.

Lower skins formed.
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More fancy tooling...
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Inner skin starting the flow forming
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More
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Fitting skins
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