Pat my 701 was used as a test end for the Corvair engine. I was not involved with the testing and have very few details on it. Once 40 hours of testing I replaced the Corvair with a Rotax ULS 100 HP new engine.
The Corvair, from what I heard was to heavy and even with the battery on the rear of the aircraft it flew nose heavy. With the Rotax it jumps off the ground and though I am new to flying, before I read about how impossible it is to land with flaps completed half of my first 50 landings with full flaps. Apparently, I was to green to know that this was supposed to be very difficult. My instructor also didn't know either, so half our landings were full flap and my take-offs equaled my landings. . . which is always a good thing.
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