Why not a speed event for the K&B 4011, 4050 or older Torpedo 40's. The engine is still in production, it's fairly cheap and I think allot of people might have one in a box somewhere. Also the engine is very unbreakable and needs very few mods. Speeds would be about 125mph. Seems to make more sense than using a crap out of production Fox 35 stunt grenade engine.
Profile only,
wing area 125 sq. in.
2 lines .018" stranded 60'
Flying wire not allowed to pass through tether point
Pressure tanks allowed
open face exhaust
no flying wings, must have canopy and rudder or V tail
Engine mods allowed, must remain single bypass
one wheel gear
timed from launch for 14 laps
Something like that , what do you think?
MM