Brett,
What prop, fuel, and launch RPM would you use with the FP.20 here?
I had good luck running an FP .20 in a Still Stuka, set up with a APC 9x4 prop, Power Master 10% nitro 20% oil 50/50 castor-Klotz I think I launched at just under 12K
The Peacemaker and Still Stuka are pretty much the same size so I expect the same performance.
Another note, I flew the Stuka on .012 lines 59 foot long.
Larry Buttafucco Stunt Team