Sub 250g Nutball RC Plane with Elevons

Описание: Water resistant foam board construction
Circle is about 17.5 inches in diameter/44.45 cm.
CG is 25% from the front edge, or 4.375 inches/11.1cm, but a bit further forward around 20% it would probably fly easier.
Elevons are 3 inches/7.6 cm at widest point
No reflex on the elevons is important. Will not fly for me with any amount of reflex.
dihedral starts at 4.5 inches/11.43 cm from the edge, and the angle on my version is probably steeper than it should be, but it's about 30 degrees.
Tail is 14.5 cm tall and about 19 cm long, but the size probably isn't critical. Smaller would make it easier to balance the cg.
3d printed motor mount
1806 2250kv Flite Test power pack a motor
6x4 prop
2x 9g metal gear servos
Escs: 20amp Flite Test power pack A, 20 amp micro without BEC used with flight controller
Batteries used: 850mah 3s lipo, 800mah 2s, 450mah 3s
Receivers: Spektrum AR620, Happymodel ELRS Nano
Flight Controller (used after I got it flying well manually): Matek f405-wmn running Arduplane 4.3.x
Transmitter: Radiomaster tx16s with external Radiomaster Ranger ELRS module.

With the flight controller setup, I ran it on both the 450mah 3s and the 800mah 2s with success. The 850mah 3s would put it over 250g with the flight controller, but it would fly fine.