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Christ · 04-21-2009, 07:36 PM

Another question, slightly OT for the thread:

Which has more effect, reducing frontal area, or reducing Cd by the same percentage?

Say we take a bullet, with a Cd of .24, and a frontal area of 50 ft^2.

In one test, we reduce the bullet to 45 ft^2, a total of 10% reduction in A, but Cd stays steady at .24

Now in the second test subject, we reduce the Cd by 10%, to .216, but leave the A the same.

Which reduction would have the most effect? My initial thought is reducing A having more effect comparatively, all other things equal.

04-21-2009, 07:36 PM	#8 (permalink)
Christ Moderate your Moderation. Join Date: Nov 2008 Location: Troy, Pa. Posts: 8,919 Pasta - '96 Volkswagen Passat TDi 90 day: 45.22 mpg (US) Thanks: 1,369 Thanked 430 Times in 353 Posts	Another question, slightly OT for the thread: Which has more effect, reducing frontal area, or reducing Cd by the same percentage? Say we take a bullet, with a Cd of .24, and a frontal area of 50 ft^2. In one test, we reduce the bullet to 45 ft^2, a total of 10% reduction in A, but Cd stays steady at .24 Now in the second test subject, we reduce the Cd by 10%, to .216, but leave the A the same. Which reduction would have the most effect? My initial thought is reducing A having more effect comparatively, all other things equal. __________________ "¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"