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From: bgardner@pebbles.es.com (Blaine Gardner)
Subject: Re: Shaft-drives and Wheelies 
Message-ID: <1993Apr24.215614.19882@dsd.es.com>
Sender: usenet@dsd.es.com
Nntp-Posting-Host: 130.187.85.70
Organization: Evans & Sutherland Computer Corporation
References: <1993Apr23.164901.13892@megatek.com> <735660736snz@morgan.demon.co.uk>
Date: Sat, 24 Apr 93 21:56:14 GMT
Lines: 18

In article <735660736snz@morgan.demon.co.uk> tony@morgan.demon.co.uk writes:
>In article <1993Apr23.164901.13892@megatek.com> randy@megatek.com 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
bgardner@dsd.es.com
