Mailing List flyrotary@lancaironline.net Message #25216
From: Finn Lassen <finn.lassen@verizon.net>
Subject: Re: [FlyRotary] Re: RD-1B failure
Date: Thu, 21 Jul 2005 09:53:45 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Is it really miscolored blue like that? A lot of heat! Amazing if that didn't transfer to the sun gears, but I suppose the oil could have carried away the heat. I'd send the planet gear assembly as well, just to be sure.

Finn (just ignore me - I previously posted the sun gear slipping on the input shaft as the most likely PSRU failure mode)

David Leonard wrote:

Tracy,
 
Here is a pic of my sun gear.  It looks to me like the drill and pin version but I hope I am wrong.  The pin seems to have broken off in shear as I can rotate the 2 parts with my hands.  No external signs of damage however.  At least now we know the weak link in the the drive.
 


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