Building techniques
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Building techniques
I've been flying off and on for several years, most of which I've taught myself. I would like to improve my building know how, so is there any ideas on whether or not I should treat the wood prior to covering the airplane? I saw a friend use a red cream on an Ultra Sport that he said he got from the auto body store. After he was done the wood had a very smooth surface. Is it worth the extra weight to treat the wood and if so is there other products that are just as good. I would appreciate any suggestions.
Brett
Brett
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Building techniques
Brett,
I only use sand paper. The final two stages of sanding should be with 400 grit followed with 600 grit. Both of these should be used only after all small imperfections and pin holes have been filled and sanded.
Prior to covering, I vacuum up as much of the balsa dust as possible, then wipe a tack rag across everything.
This will produce a very smooth surface without adding weight.
It's a lot of sanding and a lot of prep work, but the finish is superb.
ED
I only use sand paper. The final two stages of sanding should be with 400 grit followed with 600 grit. Both of these should be used only after all small imperfections and pin holes have been filled and sanded.
Prior to covering, I vacuum up as much of the balsa dust as possible, then wipe a tack rag across everything.
This will produce a very smooth surface without adding weight.
It's a lot of sanding and a lot of prep work, but the finish is superb.
ED
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Building techniques
Sounds like glazing putty to me. Bondo 907. I happen to be using some right now to fill the weave on some glass cloth I just applied to my P-47 under construction. I certainly wouldn't bother to use it under Monokote though. Just a good sanding, filling and dusting as described above will do wonders.