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Paul, if you have all metal type (NOT NYLON Inserts) lock-nuts for the
bolts and a crush plate with a recess that the heads of the bolts will seat
into preventing them from turning, then it is not necessary to safety
wire the bolts. That is the way I flew my Ross drive and my current RD-1C
drive. However, You must use all metal type lock-nuts!
If you do want the safety wire then I suggest get the drilled head type
bolts. Drilling the shank can weaken the bolt especially if you have a bit
of torque to apply.
FWIW
Ed
Ed Anderson
RV-6A N494BW Rotary Powered
Matthews, NC
----- Original Message ----- From: "paul" <sqpilot@bellsouth.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Sunday, September 05, 2004 9:13 AM
Subject: [FlyRotary] safety wiring Ross prop bolts
Hi all....On a typical aircraft prop installtion, the heads of the prop
bolts are drilled and then safety wired. This works, because the prop
flange
has fixed threaded sleeves into which the prop bolts fasten. On my Ross
PSRU, there are thru-bolts, and instead of the bolts being threaded into a
fixed unit, they go through the crush plate on the engine side of the prop
and have locknuts instead. What might be the best method of securing
these
type of prop bolts? Unfortunately, I have seen a few other rotary
installations with a Ross redrive, but never bothered to look to see if
the
prop bolts had safety wire, etc. Thanks for any and all suggestions. Paul
Conner, 13b powered SQ2000 transporting to the airport today.
>> Homepage: http://www.flyrotary.com/
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