Wow John, I thought I was the only one that had ever built the Fix-it Wright's FM Delta Fighter! This was my first successful C/L airplane and was powered by my first 1/2A engine, the OK Cub .049A. I was a young kid in the early 50s living out in the country so I didn't have anyone to help or advise me. There was no balance point shown on the sketch so the plane turned out to be very nose heavy, made worse by the tank mounted engine.
My mom would hand launch for me and if I held full up elevator, the model would just fly level if I had a good engine run. Of course, as soon as the engine stopped, the model nose dived into the ground breaking the wooden prop... but it was wonderful!
Your post really brought back the memories of the bright red model. I'd like to build this model again and see how it would fly when balanced properly.
orv.