RE: SPA / BPA prediction
There is no airframe time limitation in the "BPA" original designs are welcome. Airframes are only limited to 72in wing span, which dictates more or less engine displacement. Having said that if someone shows up with a 75in. wing span aircraft at my contest they will not be turned away. I think the spirit of the concept is more important than the strict interpritation. That follows our be inclusive not exclusive battle cry!!!
gary