I was given a Great Planes Bonanza 15E as a present. Since I am not an EP flyer I converted it to GP with an OS25 FP for power. I beefed up the firewall and used standard servos, Futaba S148s, for the rudervators, throttle, and nose wheel. S33s were in the wing for the ailerons and flaps.

To make this story short, on the first day of flying, it took off and flew well straight and level. After a few passes I pulled up for a split "S" turn at the end of the approach. On the bottom of the loop (pulling max Gs) the plane snapped to the left violently and spun in straight down the remaining 50’ to its demise.

Did I over load the airframe? Or is this a symptom of a light EP design that was never meant to move that fast?

Any one else do an EP to GP with similar results?

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