Mailing List flyrotary@lancaironline.net Message #20702
From: keltro@att.n <keltro@att.net>
Subject: Apex Slot Wear/ Grinding for 3mm Seals
Date: Sun, 24 Apr 2005 02:32:06 +0000
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Lynn,
   Ken Welter reported accelerated slot wear after machining his rotors
for 3 mm seals.......Granted Ken is pulling about 300 hp for takeoff using
nitrus oxide........It was mentioned that the hardened layer at the rotor
tips was lost due to grinding for the 3mm seals........Do you  know what
hardening process is used (induction, etc) and whether it could be
restored........Your take on this please Lynn or anyone !!
--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2
-------------- Original message from Lehanover@aol.com: --------------


> In a message dated 04/23/2005 09:02 Central Daylight Time,
> canarder@frontiernet.net writes:
>
> What I seem to have missed is the compelling reason
> why we can't simply mill the slots out to 3 mm, install new seals and
> continue the march.
>
>
> This is a common repair on 2MM rotors.
>
>
> Lynn E. Hanover
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