Mailing List flyrotary@lancaironline.net Message #21330
From: Ed Anderson <eanderson@carolina.rr.com>
Subject: Re: [FlyRotary] Re: ECU power - was fuses vs breakers
Date: Tue, 3 May 2005 16:56:15 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
 
----- Original Message -----
Sent: Tuesday, May 03, 2005 1:49 PM
Subject: [FlyRotary] Re: ECU power - was fuses vs breakers

Ed A wrote:
 
The answer is yes, the engine will continue to run.  In fact, talking with Tracy he assumed that most folks would kill the engine by turning off the master switch - which would indeed remove power from the EC2.  If I had not installed injector switches, I would indeed have to kill the master switch to stop the engine.  So I can verify it will run with the power switch to the EC2 OFF provided power to the injectors are on.  However, since I don't know what components the sneak circuit involves or how much load they may be capable of, to be on the safe side,  I normally do not run it with just the injector power.
 
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Along these lines, how is the best way to turn the engine off with Tracy's EC2 and do some glide test to determine the engine out glide characteristics so that I can fiqure out what power and flap will get me similar glide to practice engine out landings with  the engine running? Of course I wish the engine to restart after the glide test:>)
 
Bernie, getting LT2 probe connected properly to read cool side of radiator, called Tracy 3 times this am!
 
Bernie, I don't turn off the EC2 when I "practice" gliding.  I turn off the injectors - that way the fuel line stays pressurized, the EC2 is hot and ready to go and is still computing away with the injector pulse widths - its just the injectors have no power to open.  The engine catches immediately upon turning the injectors back on.
 
That's the way I do it.
 
Ed A
 
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