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Re: drafting distance, redefined

To: datsunmike <datsunmike@nyc.rr.com>
Subject: Re: drafting distance, redefined
From: RWM <RWM@rwmann.com>
Date: Tue, 03 Aug 2004 20:04:22 -0400
Some of the earliest work on the aero of drafting and towing was 
performed by the SAE at Daytona, with NASCAR drivers of the late 1960s 
--- skinny tires, big motors and blunt trauma aerodynamics overall (with 
the exception of the Superbirds, of course). 

 From memory, a full tuck at less than 1/3 car length in trail got you 
lowest total package drag (greater fineness ratio) for the best overall 
tow for leader and trailer, while a 1/3-1/2 car width displacement at 
1/3 car length in trail got the trailer the best aero tow while not 
pushing/aiding the car in front.   Great for those  late lap slingshot 
moves.

- Bob, who, like Fergus, used to practice in a '64 1200cc VW Bug

datsunmike wrote:

>Ah, there was a future for you in NASCAR but you didn't know it then.
>
>Mike






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