I am starting a project to build the various cowl and nose pieces for a 1949 J3 Cub which belongs to a friend
of mine. I believe the metal is 0.025, or perhaps 0.032 (I'll know later this week). If it makes
sense I would bring the original parts along and we could discuss the project and perhaps I could work
on a couple of the pieces.
My question: what alloy and hardness would you recommend? and do you have a stock of that metal or do I need
to buy it down here and bring it along? Many of the aircraft parts I have seen were made from
6061-T4, but this doesn't seem like a very good choice for hand forming work.
The Tinman Respondeth:
I would follow the factory. If no info. is available, my experience tells me the material is very similar to
.025" 6061 (or 6053) T4. Hand forming? Get used to the difficult.
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