I don't know about the differences for a 2-rotor; but for a 3-rotor, based I
what I know of the changes, I'd say it is significant.  Definitely go for
the EC3.

Al G

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of Bob White
Sent: Friday, October 03, 2008 3:52 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: EM/EC2 vs. EM/EC3

Hi Brian,

I don't know the details of the functionality, but the main difference
is the EC3 uses a 25 pin connector and a 15 pin connector instead of
one 37 pin connector.  There is also an oxygen sensor input and a knock
sensor input that is not present on the EC2.  I don't know how they are
used.  

Bob W.

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