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From: "Ed Anderson" <eanderson@carolina.rr.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-394651@logan.com>
Subject: Re: [FlyRotary] Re: safety wiring Ross prop bolts
Date: Sun, 5 Sep 2004 22:27:39 -0400
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Marv, I know of no specifications regarding the prop nuts.  I do know that
when I ordered my prop bolts they came with the all metal lock nuts. My
experience is the all metal ones do no lose their clamping power as the
nylons will do after repeated use.

 Some schools of thought regarding lock nuts state that NO nylon lock nuts
should be used foward of the firewall due to Nylons deterioration under heat
and harsh enviornments, certainly in high heat areas you don't want to use
them.

Ed

Ed Anderson
RV-6A N494BW Rotary Powered
Matthews, NC
----- Original Message ----- 
From: "Marvin Kaye" <marv@lancaironline.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Sunday, September 05, 2004 9:14 PM
Subject: [FlyRotary] Re: safety wiring Ross prop bolts


> "Ed Anderson" <eanderson@carolina.rr.com> wrote:
>
> """
>   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!
> """
>
> Interesting.  Where did you get that specification from?  I was under the
> impression that the only time all metal locknuts were specified was when
heat
> would be an issue.  We have nylok nuts on the prop bolts of the Eagle540,
> provided and specified by the engine manufacturer.  They are torqued as
per
> the specs in AC43-13 (etc) and we haven't seen any problem with them so
far
> during ground runs.  If the all-metal jobs are truly better and need to be
> used to meet some specification, I'd sure like to know about it.  This is
the
> first I'd heard of it.  Thanks....
>
>     <Marv>
>
> >>  Homepage:  http://www.flyrotary.com/
> >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
>