That's my thought too, but it does feel like it could be a little high (using my highly-trained tuned-ear) for the readout.  What sounds like a nice rump, rump, rump, is usually indicating between 1200-1500 rpm.  Its probably just be the unique "rotary sound" vs. the typical American V-8 sound.  Also, the 3-rotor has a different sound than the 2-rotor.  I'll guess I need to address this to Tracy.  Isn't Tracy at OSH this week?  

Mark S.


At 12:51 PM 7/27/2004 -0500, you wrote:

Has anyone actually verified the rpm readings from the
EM-2?  I have no particular reason to question it, but it would be good to
know that the EM-2 readings are accurate within some factor.

Mark S.

Hi Mark,

I'm assuming that you also have an EC-2.  If that's the case, I'm pretty sure the EM-2 is getting it's RPM data from the EC-2.  If the EC-2 doesn't know the exact RPM of the engine, we're all in trouble :-)  

Seriously, I never questioned it for a second, but you can call Tracy and see if there's any way it could be wrong. 
Cheers,
Rusty