Matt flew the Arrow design in '79, '81 and '83. He may have flown the same model. I remember reading that he had over 2,000 (two thousand) flights on his #1 Arrow (not all with the original engine). A testimony to attention to maintenance - same goes for Hanno Prettner - as of the early '90s he had never crashed due to radio/mechanical failure (and maybe never crashed at all).
I still love .60 sized pattern ships myself!
-Will B.