skylarkmk1

Steve,

If you can find a copy of the Historic Aviation Album YMF drawings by Paul Matt (NC 14031, the Pica Kit subject), they would be a start on your documentation for an orginal YMF and the newer YMF Classic by WACO Classic Aviation. The YMF Super is longer and wider and would require new drawings, formers and such. I just returned from the 2007 American WACO Club Fly-In at Creve Coeur Airport and only 1 YMF was there. I did take over 100 photos of NC 14081 (a 1987 YMF Classic, ser # F5-009), both flying and on the ground. In the 1st photo, note the rectangular exaust ports at the bottom rear of the cowl.