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Re: Coke-bottle shapes, etc.

To: "Pile,Chris" <zoombot@cox.net>,<land-speed@autox.team.net>
Subject: Re: Coke-bottle shapes, etc.
From: Skip Higginbotham <Saltrat@pahrump.com>
Date: Sun, 29 Apr 2007 09:03:27 -0700
And the links are confusing to me.....maybe it's just me......




At 08:56 AM 4/29/2007, Skip Higginbotham wrote:
>This applies to subsonic vehicles without wings how?
>Skip
>
>
>
>
>At 09:29 AM 4/29/2007, you wrote:
>>     Tom Sarda, John Burk, and List -
>>
>>     The coke-bottle shape of supersonic aircraft results from a 
>> design concept
>>referred to as "The Area Rule" which implies that as a certain size frontal
>>area approaches Mach 1 the hole it punches gets larger than the 
>>actual frontal
>>area size. The coke-bottle shape allows the pressure to reduce so 
>>that a plane
>>with that shape at supersonic speed actually punches a smaller hole through
>>the atmosphere than it measures physically.
>>     The rule itself determines where the coke-bottle shape is located on the
>>fuselage, and how deeply the waist of the coke-bottle is formed.
>>
>>     If anyone knows different or has more info please let us know 
>> - I asked an
>>design engineer from the defunct Starship program to give me a quick'n'dirty
>>explanation without the numbers and jargon when I was working at
>>Raytheon/Beech (now Hawker/Beech).
>>
>>     Chris Pile aka aircap
>>
>>http://home.worldonline.co.za/~fanjet/NC-06.jpg       Beech Starship (no
>>coke-bottle)
>>
>>http://z.about.com/d/inventors/1/0/N/4/b_1.jpg          Rockwell-Boeing B1
>>Lancer (coke-bottle)




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