GOOD NEWS. . . . The PICTURE UPLOAD FUNCTION IS WORKING !!! The tech folks at the parent company have been able to remedy the issue. You can upload pictures once again. Thank you for your patience.
14ft alum, I'd guess a 10" pitch as a starting point, but a tachometer is the only way we would know if it's in the 5500RPM range....The only "Real" way to prop correctly.