tommayer wrote:

Paul,

    following the PSRU ratio debate with fascination.  Likely has no bearing
on fixed pitch wooden props for small homebuilts, but just in case, the
radials used on airplanes like Staggerwing Beeches and Spartan Execs or
Beech 18 or Lockheed 12s, all of which were as fast or faster than most RVs,
were  long and longer, and turned 2300 max, cruised between 1700 rpm and
2000.  They were C/S, of course, but in favor of your theory I can assure
you it is perfectly feasible to take a  loaded Beech 17 off  at cruise RPM
and MP as quickly as a C-210 wound tight.  Sounds to me the second you get
your affordable C/S up and running the 2:17 PRSU will be obsolete.Tom Mayer

Yes and we will enjoy the benefits of at least 20-30 more HP normally aspirated.

I think we can do it now with the fixed pitch wood prop. Who needs 500 feet takeoff
distance? Won't 1000 feet work in 95% of the cases?

Paul Lamar
 
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