Hi Guys,
I was reading a spec for a commercial UAV and it stated that the design was capable of +/- 6G. I also noted that some catapault launchers generate a 15G load on launching.
Does anybody have an idea of the kind of G forces you see in hobby UAV flying? I was wondering what kind of loads the foam wings could take. Do you think a 6G loading on the wings necessitates making wings from carbon fibre or similar?
Ollie
Replies
I use simple rules:
30% of material strength at 10g loading on all three axis
Simple fast easy math good baseline.
We have reduced weight (minimullay) by going to 30% at 6g; however we developed fatigue cracks in certain areas.
So there is no easy answer. depends on material, application, loading, service life, and what you had for breakfast. :)