That PSRU looks like an overgrown Swiss watch :-)
Sure went to a lot of trouble so they could use a heavy,
hydraulic constant speed prop. The cost of the gear box
will be astronomical. Aren't we lucky we don't have to
deal with certification.

The torsional coupling looks real complicated.
Two bad these guys were not on the news letter two and half years
ago. We could have saved them a lot of money :-).

Paul Lamar
 
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