Mailing List flyrotary@lancaironline.net Message #2736
From: Russell Duffy <13brv3@bellsouth.net>
Subject: RE: [FlyRotary] Re: MSD injector test results
Date: Fri, 29 Aug 2003 08:49:56 -0500
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message
 Sorry, didn't make it clearer.  I leave "B" in default as a safety back up.  I KNOW the engine will run in default - so that's my standby in event I really, really screw up processor "A" while tuning in the air, I can flip to "B" with assurance it will run.   
 
I understand now.  I was getting hung up for a while on trying to make B run as well as A, before I reminded myself (or maybe Tracy pointed out) that B = Backup.   All it has to do is run well enough to get you down safely, in the unlikely event that A takes a dive.  
 
The latest software has the option to copy A to B for later vintages of controllers, but it doesn't appear to work on my EC-2.  Tracy was still trying to research exactly where the cutover occurred.  It would be pretty safe to say that if you have a light in your program button, you can forget the copy function :-)  
 
Yes, if below staging and I manual switch off the primaries, the engine hesitates for a second and I found if I enrichen the mixture immediately before/after I turn off the primaries, the secondaries catch smoothly.  Yes, then I can turn the mixture back to what I had for the primaries.   
 
Thanks.  That's pretty much all I needed to know, so you're relieved of testing duties :-)  
 
I called TWM, and asked if they knew of a way to use other injectors, and they didn't.  I'm pretty sure they figure I'm some kind of nut-case :-)
 
Rusty (just over a day) 
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