Download or read book ELEVATION OF RECOVERY PARACHUTE LOW ALTITUDE AIRDROP OF EXPLORATORY DEVELOPMENT written by and published by . This book was released on 1966 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report discusses the approaches pursued, and the results and conclusions reached, during the preliminary study conducted to investigate the feasibility of elevating the main recovery parachutes above the flight path of an airdrop aircraft by means of auxiliary lifting parachutes. Preliminary analytical studies and experimental tests were conducted during the evaluation period. The overall objective was to determine the technical, operational, and economic feasibility of elevating the main recovery parachute to achieve a low- altitude airdrop capability of 500 ft (absolute) altitude or less, as a basis for determining if further 'in-depth' study were warranted. The results indicate that the elevation of recovery parachutes by auxiliary lifting parachutes is not feasible.

Download or read book Low Altitude Airdrop System Investigation Employing Inflation Aided Recovery Parachutes for Extraction written by Bruce W. Jezek and published by . This book was released on 1971 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: This technical report presents the results of an in-depth exploratory development study of an airdrop system utilizing the recovery parachutes to extract as well as recover the airdrop load. The purpose of the study was to achieve a low altitude capability by minimizing the altitude loss from the time that the load clears the aircraft until an acceptable impact velocity is achieved. During the study, mathematical models were developed and programmed for computer solution which simulated the operation of an airdrop system. This analytical tool, coupled with experimental data derived from a limited flight test program, was utilized to conceptualize a configuration for an airdrop system and predict its theoretical performance. From these studies emerged an understanding of possible configurations for a low altutude airdrop system employing the recovery parachutes for extraction.

Download or read book Preliminary Investigation of Concepts for Low altitude Airdrop of Personnel exploratory Development written by Richard A. Lau and published by . This book was released on 1966 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preliminary performance and weight characteristics of 10 different concepts for the low-altitude airdrop of personnel have been investigated. A literature survey was conducted and available data was analyzed in terms of the general requirements of personnel air delivery. Concepts studied included drag concepts, thrust-lift concepts, and gliding concepts.

Download or read book A Parachute Retrorocket Recovery System for Airdrop of Heavy Loads written by George Chakoian and published by . This book was released on 1969 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of an in-depth exploratory development study of a parachute retrorocket recovery system for the airdrop of cargo loads weighing up to 50,000 pounds and the results of actual drop tests of loads wrighing from 3,000 to 35,000 pounds. This study indicates that a parachute retrorocket recovery system is particularly feasible for the recovery of airdrop loads and may prove to be the only practical system for heavy loads, especially if low altitude is a requirement.

Download or read book Introduction to Exploratory Development of Low Altitude Airdrop of Supplies and Equipment written by Maurice P. Gionfriddo and published by . This book was released on 1970 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Government Research Development Reports written by and published by . This book was released on 1968 with total page 1134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of a Low Altitude Tactical Assult Parachute written by John Watkins and published by . This book was released on 1989 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The US Army is conducting exploratory development of troop parachute concepts which will have better performance than the T-10 troop parachute currently used. The major performance goals are a slower rate of descent and a lower jump altitude. The initial concepts were a two canopy cluster parachute system and a large single canopy parachute system. Both systems met or exceeded the rate of descent goal. The two parachute cluster came the closest to meeting the jump altitude goal, but questions about reliability along with operational and logistical considerations raised concerns about the suitability of this concept. Further work was done to reduce jump altitude for a single canopy system. Concepts that were investigated included a drogue extraction technique and a reefing method to make the canopy inflate faster. The drogue extraction technique did reduce the altitude loss, but this method is impractical when a large number of soldiers must exit the aircraft in a short time. The reefing technique was successful in reducing the altitude loss to full canopy inflation, but this reduction by itself was not enough to meet the jump altitude goals, and the peak opening forces increased to uacceptable [sic] levels. At the present time, additional improvements are sought in other areas which include; faster acting equipment releases and faster canopy stabilization.

Download or read book Recovery System Design Guide written by E. G. Ewing and published by . This book was released on 1978 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Symposium on Parachute Technology and Evaluation Proceedings written by Earl C. Myers and published by . This book was released on 1964 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents: Unique Flexible Fibrous Material for Decelerators; Analysis of an Integrated Spacecraft Escape System; Unmanned Water-to-Air Recovery System; The Effect of Space Environment on Textile Materials; Studies of the Influence of Properties on the Landing Characteristics of Manned Spacecraft; Attenuation of Deployment and Opening Forces of Certain Aerodynamic Decelerators; Recovery Dynamics for Appollo; Development of the Para-Sail Parachute as a Landing System for Manned Spacecraft; Application of Ballistics to Precisely Control the Opening of Parachutes, the Ultra Precision Parachute; Attenuation of Landing Impact for Manned Spacecraft; Controlled Landings with Steerable Parachutes; Forcible Deployment and Development of Large Recovery Parachutes for Low Altitude Airdrop of Heavy Equipment; and Flat Spin Recovery System.

Download or read book U S Government Research and Development Reports Index written by and published by . This book was released on 1968 with total page 826 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements written by and published by . This book was released on 1968 with total page 1224 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Annual Index written by and published by . This book was released on 1968 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1968-07 with total page 1150 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Index written by and published by . This book was released on 1968 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development and Testing of the Disk gap band Parachute Used for Low Dynamic Pressure Applications at Ejection Altitudes at Or Above 200 000 Feet written by Clinton V. Eckstrom and published by . This book was released on 1966 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Volume of Technical Papers written by and published by . This book was released on 1966 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Low Altitude High Speed Cargo Parachute System Development written by W. D. Sundberg and published by . This book was released on 1991 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Low Altitude High Speed Cargo (LAHSC) parachute is being developed for deployment at velocities up to 250 knots at 300 ft altitude. The LAHSC parachute will decelerate and turnover a load to a 40 to 60 ft/sec vertical velocity at first vertical at approximately 30 ft AGL. The acceleration limit is 5g's. Main chute cargo extraction will be necessary. A single parachute will be utilized for a 7500 lb load, and clusters will be used for larger loads. The 64-gore, 70-ft-dia parachute has a ring-slot/solid construction with a flare at the skirt to aid the inflation. This paper describes the parachute, the design process and testing to date. Model parachutes have been tested in wind tunnels and in free flight. A single full-scale parachute has been tested at low speeds with conventional load extraction, and with a vertical trajectory at deployment.