Automated Procedure For Evaluating Sites For Suitability As Helicopter Landing Zones Volume 1 Descriptions And Instructions For Use Of Computer Programs
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Author | : Judith A. Parks |
Publisher | : |
Total Pages | : 281 |
Release | : 1976 |
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This report contains instructions for operating a model that is an automated procedure for evaluating designated sites as helicopter landing zones. The model is comprised of three independent computer programs run sequentially. Program 1 (FTHEL) evaluates the site in terms of generalized conditions of slope, microrelief, and soil strength as related to the requirements set by certain characteristics of the helicopter that is to land. The program determines whether the site can provide a full-touch zone, a skid-touch zone, a nontouch zone, or no landing zone at all, and computes the minimum departure angle for the specified helicopter if a landing zone is possible. Program 2 (FTJPRH) is an automated mathematical procedure for predicting the size and shape of a clearing in a forested area by considering blast forces from a bomb explosion, tree stem strength, stem diameter, and distance from ground zero (GZ), the center of the explosion. The clearing is described by a vegetation profile of tree remnant height versus the distance from GZ. Program 3 (FTJPHL) of the model is an automated procedure for evaluating a clearing by estimating how many trees must be removed from a clearing produced by a high-yield, air-dropped munition in order to use the clearing as a full-touch helicopter landing zone. The output is the number of tree remnants that must be removed to satisfy the landing requirements of a specified helicopter.
Author | : Judith A. Parks |
Publisher | : |
Total Pages | : |
Release | : 1976 |
Genre | : Helicopters |
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Total Pages | : 1082 |
Release | : 1977 |
Genre | : Aeronautics |
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Total Pages | : 298 |
Release | : 1981 |
Genre | : Science |
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Total Pages | : 570 |
Release | : 1978 |
Genre | : Industrial hygiene |
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Total Pages | : 586 |
Release | : 1980 |
Genre | : Public administration |
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Total Pages | : 1056 |
Release | : 1977 |
Genre | : Research |
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Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Author | : United States. Office of the Chief of Naval Operations |
Publisher | : |
Total Pages | : 828 |
Release | : 1990 |
Genre | : Aeronautics, Military |
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Total Pages | : 140 |
Release | : 2000-01 |
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Popular Mechanics inspires, instructs and influences readers to help them master the modern world. Whether it’s practical DIY home-improvement tips, gadgets and digital technology, information on the newest cars or the latest breakthroughs in science -- PM is the ultimate guide to our high-tech lifestyle.
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Total Pages | : 576 |
Release | : 1987 |
Genre | : Transportation |
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