My first experiment was Aluminum, it failed.zfennell wrote:so,
i know you mentioned that you were experimenting with different materials...
why Ti instead of Al ?
(Ti is heavier)
do you have a cheap source for this stuff?
what sheet metal skills do you have?
bending the spanwise profile can't be much easier than any of the machine operations.
can you do for-aft camber for the lift profile?
despite any conserns over flat plate for wing sections they still work.
maybe not as forgiving , but its a good start.
i've seen lots of boats with plates for keels and propellors with no thichness profile.
besides , bondo is cheap.
I used three layers of aluminum signs that was just laying around, I knew one sheet was too weak, they are probably 2mm thick each. They are too soft, there are better aluminum alloys, but my second test was the titanium. One 2mm sheet was strong enough.zfennell wrote:"My first experiment was Aluminum, it failed."........
Thanks for that.
Any opinions why the aluminum did not work for you?
(Stiffness, strength, corrosion?
That depends on the alloy and heat treatment being compared.gbleck wrote:Titanium is stronger then aluminum for a given mass.
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