Mailing List flyrotary@lancaironline.net Message #6907
From: Russell Duffy <13brv3@bellsouth.net>
Subject: RE: [FlyRotary] Re: No rev-2 flying yet (Tracy, see comments in red)
Date: Tue, 30 Mar 2004 12:15:49 -0600
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message
This may occur because in one fraction of a second you are  opearting at WOT (lots of fuel flow)  and the next down to idle.   
 
 
In thinking about this some more, it would make sense that I didn't have nearly the same problem before.  In the rev-1 version, I had the primary injectors in the block, and the secondaries were only about 14 inches away.  Now, all four injectors are about 30 inches away, so there's a lot more fuel left in the intake when you chop the throttle.
 
I agree with Tracy that this isn't my normal operating mode, but when testing the engine, I like to try everything I can think of, so there won't be any unpleasant surprised in flight.  FWIW, the turbo used to throw a nice flame out the short pipe when I'd chop the throttle, but I don't know if that would make it to the end of a longer pipe, through a muffler.  
 
Rusty (off to test my O2 reading on the EM-2)  
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