Mailing List flyrotary@lancaironline.net Message #11125
From: Russell Duffy <13brv3@bellsouth.net>
Subject: RE: [FlyRotary] Re: safety wiring Ross prop bolts
Date: Sun, 5 Sep 2004 20:52:21 -0500
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message
Hi, everyone....I just checked....my crush plate is smooth on both sides.  Thanks for all the input on this....I guess it's steel locknuts for me.  Paul Conner....SQ2000 safely at airport, wings both on.  Taxi testing this week.   
 
Congrats on getting it there, and in less pieces than before.  Rest assured, that first taxi is a milestone :-)  Did you say you were at St. Elmo?  If I never finish the experimental hours on the RV-3, at least I can fly the SlingShot over (after next weekend).
 
BTW, I don't think there's any need to use all metal stop nuts.  I hate those things, and only use them were temp is really an issue.  I think it's sort of an A&P rule of thumb that all nuts forward of the firewall should be high temp, but I don't think it's a hard fast rule.  The biggest problem will be torque specs.  You'll have to try to measure the torque that it takes to just turn the nuts, then add that to the torque you're supposed to have.  Fiber stop nuts aren't as bad, but it's still technically a problem. 
 
If you really want to do it right, call up Saber Manufacturing, and let them give you the one hour lecture on using only threaded drive lugs.  The lecture cost me about $200 in lugs and proper prop bolts (longer threads, drilled heads).  Still, I only changed the lugs on the prop extension, and not on the redrive.  The extension is still bolted to the redrive with AN bolts, and fiber stop nuts (AN365).
 
Cheers,
Rusty (have not put any intake gaskets on backwards <G>)
 
 
 
 
Subscribe (FEED) Subscribe (DIGEST) Subscribe (INDEX) Unsubscribe Mail to Listmaster