Thanks Captain Cain,
I was a Junior contestant in Speed at those Nats, my Dad was big into Stunt then. I'm going to go through his albums and look for your Mig. The versions that were drawn up before 1970 are Classic legal, the other ones are legal for the new Nostalgia 30 or Super Seventies class from 1970 to 1979. I Sure would like to one at VSC! The swept wing and flying tail were very daring.
I was counseled to fly an ST40 and Sig Super Chipmunk for the '73 Nats but never completed the plan. My wife bought me the kit a couple of years ago for the engine I still have so maybe I'll get to relive the dream anyway.
Those ST90's do get around. One friend has one in his Balsa USA SE5A and another buddy has one in his Royal Bearcat. They seem great and powerful as long as they get the oil required. I bet that Cosmic Wind hauls...!
Keep us informed on the Mig Stunter, pictures please!
Chris...