I half agree with Galen the Cub I have had a Super Tigre 40 on it and was too much so I switched to a Saito 45 perfect motor for this plane. As far as the FP I used to have one and after many wasted days trying to get it running right I fianlly figured out what "FP" stands for....... F-ing Problems. Maybe it was me but I started noticing more and more of my clubs members using SF's and FX's instead of FP's.