All,

   http://www.geareddrives.com/Buds_philosophy.htm
   Has a nice write up in the last Contact mag. I like the features of his
   psru----cs, separate lube, clutch arrangement as he did it, offset
   shaft.

   He says "*Build the PSRU so that anyone would be feel good about taking
   their grandchildren on a cross country flight.* Safety being our first
   consideration, we do not advocate the use of belts, chains or planetary
   gears in something as important as a propeller drive. Belts break,
   chains stretch, and planetary gears are simply not designed to operate
   at high RPM's and under such a great load as they are under while in use
   in an airplane. Planetary gears do well in situations that only require
   high RPM for a very brief period of time, but are not designed to
   operate under consistent and continuous use at high RPMs. This is a
   recipe for disaster in our opinion. Spur gears, as we use in our PSRU,
   on the other hand, are designed to safely operate at a high RPMs and
   under continuously use. We chose to use what we know to be the most
   dependable and reliable technology for this application because our
   objective was to do what makes sense in terms of safety, reliability,
   and ease of maintenance. "

   Erstwhile comments on the planetary? What do you think Mistral makes of
   this? Of course his re drives are mostly made for V8's but I really like
   the clutch feature as he implements it!



   Marc Wiese


   I talked to these people at OSH and they don't have a clue. The
   centrifugal clutch
   is nice. Also the yearly Chev V8 conversion. Here this year gone the
   next.

   --
   Paul Lamar ...No rotor no motor.


   The clutch system does look interesting; however, I would be
   concerned about the strength of the counterweight system when
   rotating at 7000 to 8000 RPMs.

   Joel



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