Thanks for the response, any way to contact the B-25 builder? I'd like to find out how he made those props! They look GREAT! I have a 90SP in my hands now and a 60SP on the way. Props are a real problem though. Have you considered asking one of the prop manufacturers to make props for your engines? Since the primary use of these engines will be with scale planes it would be nice to have props available that mimic the look of the "real thing". The APC's are good props but lack the "look" of the Hamilton Standard!