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From: [email protected] (Blaine Gardner)
Subject: Re: Shaft-drives and Wheelies 
Nntp-Posting-Host: 130.187.85.70
Organization: Evans & Sutherland Computer Corporation
Lines: 18

In article <[email protected]> [email protected] writes:
>In article <[email protected]> [email protected] writes:
>
>>  When did *you* go out and change the laws of physics? :-)  According to some
>>numbers I used to see bandied around, shaft drive is on the order of 95-97%
>>efficient, while chain drive is closer to 99%...   Seems to me that this makes
>>*chain* drive more efficient, hmmmmm???
>
>Well maintained chains, running in oil, without those little rubber 'O' rings 
>to cause frictional losses, might reach 99% efficiency.  The average open to 
>the dust 'O' ring motorcycle chain probably has a difficult job making 90% 
>efficient.

How about some sources for all these numbers? Or is this more stuff that
"everybody knows"?
-- 
Blaine Gardner @ Evans & Sutherland
[email protected]