There are ways to do that, Greg.
But, Al had his 20B on a dyno and could
probably give you some “real world” advice on load settings.
Al??
Ed
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Greg Ward
Sent: Tuesday, October 27, 2009
10:43 PM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Prop Loads
Finally in the dyno room building the mount
plate to begin testing. Tracy
says that the engine should be tested with the prop on, and this is kind of
hard in a dyno room. We are mounting the engine without the PSRU, so that
we don't tear it up in testing, and instead hooking directly to the shaft which
is loaded by means of a water brake. We can put any load on it that we
want, problem is, how to calculate that prop load in foot-pounds, at different
settings. Talked to Craig Cato, and he is leaving for Europe,
so doesn't have time to run the calcs, and I am just a dumb high country
nail-banger. Any thoughts?
Lancair 20B N178RG in progress
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