Jim;
Is that where the expression "a lead sled" came from? :)
Sorry for commenting on so many old posts but I was in WV for a week or so
and I just returned to AZ.
Regards, Neil Tucson, AZ
-----Original Message-----
From: Jim Belford [mailto:jimbelford@msn.com]
Sent: Friday, May 02, 2003 12:44 PM
To: speedtimer@charter.net; john.szalay@worldnet.att.net;
land-speed@autox.team.net
Subject: Re: LSR claimed by the Air Force
Glen,
if you are interested, they actually use a fairly simple (rudimentary)
process to measure velocity. It involves using pencils placed in holders
along the track. As the sled travels down the track a blade attached to it
breaks the pencils (and the lead conductor inside) providing the distance
and timing data to determine velocity.
Jim
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