Only glitch I see is how to set alignment and make it easily built and indexed/aligned in the home garage.
That sounds like it could be light, cheap and fairly simple. ...I'd better fire up the electric drafting machine and see if the sandwich would fit.Even simpler, use the Airbike design....steel tube leg in steel tube socket. Much cheaper!
That sounds very 103. i thought you were going LSA. Those speeds mean that a Briggs would really benefit from a redrive. A Luciole DD setup is going to suck that slow. The 810 with as much torque as you can find might sorta work.The difference in hp and weight in the engine options puts the V speeds all over the chart. ...and I'd be a fool to put in writing that Vs wasn't <24kts (and it will be). Vh under 55 kts is probably a given with anything under ~45hp. On a ~40hp'ish airplane that's designed for 6.6G and a Vne under 100 mph it's safe to say that Vc = Vh. Vy depends so much on hp and prop specs that it's impossible to even guess (I don't even know if the engine will have a PSRU yet).
It's an optimized HiMax wing on an airplane that's very similar. It'll fly okay on 35 hp and it'll fly great on 50 hp.
I tested the hell out of my Sonex gear! I ran off a narrow runway into tall weeds and put the plane on its nose....bending one leg about 10 degrees. My buddy worked in the machine shop at a large power plant and helped straighten the leg with a 50 ton press. He said it was scary how much force it took to straighten the leg. That gear leg is still flying hundreds of hours later and hasn't shown any problem.Agreed a little cheaper. 3/4” bar from “titanium joe” isn’t as $$ as you would think. Sonex claimed the titanium had different properties than steel as far as energy absorption/rebound or something to that effect. I never bothered verifying their claims.