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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 09:13:39 -0700
OK....whew!!!! almost made a coke bottle out of the liner......
Thanks for the info. The "Rule" could work where the 
cockpit/windshield bulge (or other bulge like wheels and tires on a 
lakester) increases the frontal area of a lakester or liner couldn't it?
Skip



At 10:03 AM 4/29/2007, you wrote:
>    Just FYI, Skip. (in case anyone wondered)
>
>
>----- Original Message ----- From: "Skip Higginbotham" <saltrat@pahrump.com>
>To: "Pile,Chris" <zoombot@cox.net>; <land-speed@autox.team.net>
>Sent: Sunday, April 29, 2007 9:56 AM
>Subject: Re: Coke-bottle shapes, etc.
>
>
>>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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