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Re: drag/frontal area

To: Joe Amo <jkamo@rapidnet.com>, <land-speed@autox.team.net>
Subject: Re: drag/frontal area
From: Higginbotham Land Speed Racing <saltrat@pro-blend.com>
Date: Tue, 06 Nov 2001 14:22:26 -0600
Joe, it is half the frontal area for starters and has 2 wheels....might
have something to do with it???
I didn't say I was correct....just that I made some assumptions in the
absence of factual data.

Skip


At 01:18 PM 11/6/01 -0700, you wrote:
>Skip looking at just know data
>says something is off in these
>"calculations":
>you went 270 mph with 840hp
>Ez hook reached a speed of 301 mph with 170hp in 96'
>Joe :)
>
>john robinson wrote:
>
>> At 11:50 AM 11/6/01, you wrote:
>>
>> >Yes but for me:
>> >
>> >Trouble with that is I have lakester data and am trying to apply it to
>> >streamliner......
>> >I think the lakester Cd is about .14 based on 840 hp and frontal area is
>> >about 13.5 sq ft. (speed 270)
>> >If I assume that the Cd of the wheels and tires doubles the Cd of the
>> >liner, then the liner Cd is .07
>> >I still think that there are too many assumptions and the only practical
>> >way to prove it is to run and then do "coast downs".
>> >Skip

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