|
Tractor Talk Discussion Board |
Re: Re: Re: Re: Re: Re: Re: Re: O/T for you scienc
[ Expand ] [ View Follow Ups ] [ Post Followup ] [ Return to Forum ]
Posted by Steve - IN on November 09, 2003 at 09:26:25 from (12.222.30.13):
In Reply to: Re: Re: Re: Re: Re: Re: Re: O/T for you science bu posted by rhud, fried brain on November 08, 2003 at 19:01:07:
rhud,
Not to worry. I had nothing to do this morning, so went at the numbers a different way -- that is, how high does it have to go with 0 drag to get to something around 3000 fps at the ground. I come up with about 32 miles. Check that number if you will. Anyway, the best round I found in the ballistics tables at www.remington.com was the 300 Rem Ultra Mag which by throwing out my ballistics formula and simply using ft/lbs. of torque versus the 180gr. weight of the round gets to almost 31 miles. No good, still over 100 fps short at the ground. Then I started looking for Mama Deuce 50 cal ballistics, didn't find them, but started thinking of bigger guns. Remember the Paris gun the Germans used in WWI with a 70 mile parabolic range. Then the progressive charge gun they designed to shot in France and hit London. Projected ranged was 140 miles. Then remembered Gerald Bull, and it turns out he actually did it. In Nov. 1966 a ~100 foot long barrel super gun shot a 185lb. Martlett to an altitude of 111 miles. Bingo. It can hit as fast as it left. I take it all back -- it can be done, but not with any ol' rifle you're likely to pull off the rack. I'll do a post about the magic of the Martlett approach at the top. Sorry for makin' your head hurt. Have a good weekend. Steve
Follow Ups:
Home
| Forums
Today's Featured Article -
Product Review: Black Tire Paint - by Staff. I have been fortunate in that two of my tractors have had rear tires that were in great shape when I bought the tractor. My model "H" even had the old style fronts with plenty of tread. My "L" fronts were mismatched Sears Guardsman snow tires, which I promptly tossed. Well, although these tires were in good shape as far as tread was concerned, they looked real sad. All were flat, but new tubes fixed that. In addition to years and years of scuffing and fading, they had paint splattered on
... [Read Article]
Latest Ad:
2022 John Deere 5045E, 4wd, front end loader and 3rd function with grapple. 120 hrs, 55k new, must sell
[More Ads]
Copyright © 1997-2024 Yesterday's Tractor Co.
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V. Yesterday's Tractors - Antique Tractor HeadquartersWebsite Accessibility Policy |
|
