G Bertella has Mig21 plans. He advertises in RCJI...in Italy...no web page or credit card. I bought some plans from him a few years ago for YF-23...it's underway, so no idea if it will even fly. Had to send Lira via snail mail. Plans are okay but needed modification for tractor fan use. Also all his plans provide for splitting the fuselage for transport. Make them that way or modify for one piece as I did. Best of luck. Woody.