Norm Langlois
Well-Known Member
Does any one know if for example something constructed of .050 6061 t4 would be as strong or better if thinning down to .040 2024 t3The KSI numbers show a much superior strength for 2024
The mono spar I Made a 60 degree triangle for my UL is 6061 T4 .050 it did not have a full third diaphragm it was not even the same thickness for what was ,the 3rd side
I plan to make a new spar . this new spar will be enhanced by a full 3rd Diaphragm . .040 2024 T3 would be 4 lbs lighter.
I plan to build a new wing even if I still use 6061 T4 it will be much lighter than this one
A new wing with 6061 T4 different air foil 13 half span with a 14 ft spar will only weigh 28 lbs
full span 27 ft Hornier tips as before will 56 lbs uncovered . Saving an additional 4 lbs would be nice.
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