X-Mozilla-Keys:                                                                                 
Vance Jaqua wrote:

Paul - the built in dyno is almost every engineer's
dream. I believe that the later big radials (3360 and
up) had torque metering in the redrive - the planetary
is a natural since you are stopping one gear set. I
think measuring the whole engine in flight would be
nasty - you would have to introduce too many degrees
of freedom and the signal to noise ratio would be
messy - in rocket pulse impulse measuements we often
used an acceleration compensated load cell to "buck
out " ringing - maybe? - put your electronic hat on -
Vance

No attachment came through Vance.

Paul Lamar
 
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