Mailing List flyrotary@lancaironline.net Message #22187
From: Ernest Christley <echristley@nc.rr.com>
Subject: Re: [FlyRotary] Re: Sized 13b
Date: Fri, 20 May 2005 14:13:26 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Ed Anderson wrote:

Plugs Up itself was not the problem,  inadequate understanding or attention to the details of lubrication subsystem was the problem.   Dave now uses one of powersports spur gear PSRUs, the one that weights 65 lbs and cost $6500.  He apparently went through several Ross drives and having gone through one myself I can understand - although not agree - with his views concerning the planetary drive. Simply a less than adequate design as embodied in the Ross drive.  Tracy's drive is a different breed of cat altogether.
 


Goes back to something you said last Saturday.  You said it off-handedly, but it really carries a lot of weight and import.  I can't quote it exactly, so I'll paraphrase:

If you're going to copy a system, you have to copy it exactly.  Any changes makes it a different system.  Then you have to go back to the basics and actually understand how the system works.

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