I am sure it was Rob. Ran 120,000 miles in a car. Far as Perry knows
and from the looks of it it is right off the showroom floor plus 120,000
miles
and 200 hours as an aircraft engine.

Rob Weinstock wrote:

Thanks, Paul.

What I'm suggesting is that the standard factory balance job is perhaps
insufficient for sustained high RPM operation. The entire rotating assembly
can be rebalanced, and this is sometimes done for automotive racing
applications, where sustained high RPM operation is a reality. It becomes
mandatory if the rotors or front counterweight are changed for different
stock parts. Mazdatrix can provide this service.

Regards,

Rob

As Jon pointed out the torque pulses or shocks from the combustion process
 are the primary forcing function. Any slight unbalance 
of the engine pales by comparison.

Paul Lamar
 
The AirCraft Rotary Engine NewsLetter.              Powered by Linux.

http://home.earthlink.net/~rotaryeng/            http://www.linux.org