At one time Aircraft Conversion Technologies had their company 150 configured with a Tailwheel, 180hp, and a 3-blade constant speed prop. With a big grin, the old fella who ran the company described the performance as "quite adequate". It sure looked cool and I'll bet the performance was better than "adequate". He said it could cruise up around the VNE <img src="/ubbthreads/images/graemlins/cool.gif" alt="" />