Mailing List flyrotary@lancaironline.net Message #35397
From: Russell Duffy <rusty@radrotary.com>
Subject: RE: [FlyRotary] First engine start!
Date: Fri, 9 Feb 2007 20:45:09 -0600
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message

My engine started immediately today!  Probably between first and second
blades!  It also ran very smoothly.  Thank God and thank you, Tracy!

Congrats.  I'm sure you deserve quite a bit of the credit :-)
 
My first thought when reading this was a bad electrical connection, as others have mentioned.  Do check that, but...

I am going to try and move the starter a little in the mount on Tracy's
drive to provide a little relief in case it is binding.  I do not know
if this is possible...(how much slop is in the starter hole on the drive)

I had to do this very thing on either the RV-3, or the single rotor engine (can't remember which).   I do recall the bendix gear not retracting, and I even believe I recall that it wouldn't turn.  If the fit of the gear is so tight that it won't let the gear move all the way forward, I believe that also prevents the high current contacts inside the solenoid from connecting the motor to 12V.  

If I were to continue guessing, I'd say it might even work tomorrow, when it's cool.  The warm gears might have expanded just enough to keep them from engaging as far as they did when they were cold.     

All in all, sounds like you had a great first run!

Rusty 

PS- Here's a link to the famous Python Parrot sketch:

 

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