Download or read book Investigation of Various Textile Parachutes and Control Systems to Achieve Steerability Phases Iii and Iv Part Iii written by and published by . This book was released on 1966 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: This program covers the detailed investigation of gliding parachutes and their necessary guidance and control systems to achieve a controlled approach to and touchdown at a preselected spot. Theoretical and analytical investigations and exploratory wind-tunnel and truck-tow tests were conducted to establish a flexible and self-inflatable canopy configuration capable of meeting the program objectives. Free-flight tests were conducted to demonstrate the performance of the selected configuration. This report documents the free-flight test phase of the program. Sixteen, 28 and 40 foot steerable parachute canopies were free-flight tested with suspended weights from 198 to 3865 lbs. to obtain deployment, inflation, and performance data. A flexible, self-inflating, steerable parachute was developed which demonstrated a maximum L/D of 2.1 in wind tunnel tests; has been deployed in free-flight tests in sizes up to 40 ft. D(W) at velocities up to 150 knots and altitudes up to 15,000 ft. and demonstrated excellent stability and controllability with turn rate up to 30 degrees per second.
Download or read book Investigation of Various Textile Parachutes and Control Systems to Achieve Steerability written by E. M. Linhart and published by . This book was released on 1966 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research program covers the detailed investigation of gliding parachutes and their necessary guidance and control systems to achieve a controlled approach to, and touchdown at a pre-selected site. Theoretical and analytical investigations have been conducted to determine system feasibility and performance limits, and to establish the configuration of a flexible, self-inflating canopy capable of meeting the program objectives.
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation of Various Textile Parachutes and Control Systems to Achieve Steerability Phase i written by V. F. Riley and published by . This book was released on 1964 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research program covers the detailed investigation of gliding parachutes and their necessary guidance and control systems to achieve a controlled approach to a touchdown at a preselected site. Theoretical and analytical investigations have been conducted to determine system feasibility and performance limits; and to establish the configuration of a flexible, self- inflating canopy capable of meeting the program objectives. A series of exploratory wind tunnel tests with small model steerable parachutes has been conducted to substantiate the findings of the analytical investigation and further define the detail design of the most promising configurations. Additional tests with large scale models in the form of tow tests, wind tunnel tests, and free-flight deployment tests, have been conducted to demonstrate aerodynamic characteristics; and to obtain essential data for use as design criteria for an integrated steerable parachute system. The results of this research program, reported herein, has culminated in the design of a flexible, self-inflating, steerable parachute canopy which has demonstrated in wind tunnel tests a maximum lift-to-drag ratio of 2:1; has been deployed in free-flight tests at velocities up to 150 knots; and has demonstrated a turn rate of approximately thirty (30) degrees-per-second.
Download or read book Investigation of Various Textile Parachutes and Control Systems to Achieve Steerability written by V. F. Riley and published by . This book was released on 1964 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research program covers the detailed investigation of gliding parachutes and their necessary guidance and control systems to achieve a controlled approach to and touchdown at a pre-selected site. Theoretical and analytical investigations have been conducted to determine system feasibility and performance limits; and to establish the configuration of a flexible, self-inflating canopy capable of meeting the program objectives.
Download or read book Human Factors Engineering Bibliographic Series written by and published by . This book was released on 1967 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Experimental Investigation of Model Parachutes Under Finite Mass Conditions written by Herbert Rutherford Brown (CAPT, USAF., III) and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Parachute Recovery Systems written by Theo W. Knacke and published by . This book was released on 1992 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this manual is to provide recovery system engineers in government and industry with tools to evaluate, analyze, select, and design parachute recovery systems. These systems range from simple, one-parachute assemblies to multiple-parachute systems, and may include equipment for impact attenuation, flotation, location, retrieval, and disposition. All system aspects are discussed, including the need for parachute recovery, the selection of the most suitable recovery system concept, concept analysis, parachute performance, force and stress analysis, material selection, parachute assembly and component design, and manufacturing. Experienced recovery system engineers will find this publication useful as a technical reference book; recent college graduates will find it useful as a textbook for learning about parachutes and parachute recovery systems; and technicians with extensive practical experience will find it useful as an engineering textbook that includes a chapter on parachute- related aerodynamics. In this manual, emphasis is placed on aiding government employees in evaluating and supervising the design and application of parachute systems. The parachute recovery system uses aerodynamic drag to decelerate people and equipment moving in air from a higher velocity to a lower velocity and to a safe landing. This lower velocity is known as rate of descent, landing velocity, or impact velocity, and is determined by the following requirements: (1) landing personnel uninjured and ready for action, (2) landing equipment and air vehicles undamaged and ready for use or refurbishment, and (3) impacting ordnance at a preselected angle and velocity.
Download or read book Retrorocket parachute Landing System Study for Earth and Martian Entry Vehicles written by Northrop Corporation. Ventura Division and published by . This book was released on 1963 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: For Earth and Martian Landing-Vehicles, a study program is being conducted to establish parametric equations and curves to determine landing-system weight vs capability in terms of maneuverability, horizontal translation, and reliability. Emphasis is being placed on four major subsystems: (1) parachute system, (2) propulsion system, (3) guidance and control system, and (4) impact system. The program is in three phases: (a) operational analysis, (b) systems analysis, and (c) comparative analysis. Operational analysis is about 90% completed. Configurations have been established for the manual landing vehicle which provide a range of mass property values within which landing systems can be studied. Entry trajectories indicate maximum deployment altitude of the main parachute cluster of 80,000 ft for Mars (Schilling Model II) atmosphere. Current developements in gliding parachute concepts forecast use of single and clustered self-inflatable parachutes capable of attaining lift-to-drag ratios of 2.0 in the near future, and by the 1970s, possible 2.5 to 3.5. Study indicates a liquid propulsion system provides the most complete coverage of requirements established. Propellants for study have been selected on a "best in each class" propellant, classes being (1) storable, (2) cryogenic, and (3) cryogenic-storable. For guidance and control, subsystems required are also needed for other mission operations. However, specialized equipments are needed (i.e., controller and operational displays). Mathematical models have been formulated to represent control characteristics, and study of handling characteristics continues. Program progress is on schedule, and early conclusions are subject to revision during the second and third phases.
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 Applied Mechanics Reviews written by and published by . This book was released on 1995 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1972 with total page 974 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Key words in context Title Index written by and published by . This book was released on 1962 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Smart Fibres Fabrics and Clothing written by Xiaoming Tao and published by Elsevier. This book was released on 2001-10-04 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: This important book provides a guide to the fundamentals and latest developments in smart technology for textiles and clothing. The contributors represent a distinguished international panel of experts and the book covers many aspects of cutting edge research and development.Smart fibres, fabrics and clothing starts with a review of the background to smart technology and goes on to cover a wide range of the material science and fibre science aspects of the technology including: Electrically active polymeric materials and the applications of nonionic polymer gel and elastomers for artificial muscles; Thermally sensitive fibres and fabrics; Cross-linked polyol fibrous substrates stimuli-responsive interpenetrating polymer network hydrogel; Permeation control through stimuli-responsive polymer membranes; optical fibre sensors, hollow fibre membranes for gas separation; integrating fibre-formed components into textile structures; Wearable electronic and photonic technologies; Adaptive and responsive textile structures (ARTS); Biomedical applications including the applications of scaffolds in tissue engineeringIt is essential reading for academics in textile and materials science departments, researchers, designers and engineers in the textiles and clothing product design field. Product managers and senior executives within textile and clothing manufacturing will also find the latest insights into technological developments in the field valuable and fascinating.
Download or read book Government Reports Index written by and published by . This book was released on 1972 with total page 1074 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aircraft Inspection for the General Aviation Aircraft Owner written by United States. Flight Standards Service and published by . This book was released on 1978 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Low Speed Wind Tunnel Testing written by Jewel B. Barlow and published by John Wiley & Sons. This book was released on 1999-02-22 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt: A brand-new edition of the classic guide on low-speed wind tunnel testing While great advances in theoretical and computational methods have been made in recent years, low-speed wind tunnel testing remains essential for obtaining the full range of data needed to guide detailed design decisions for many practical engineering problems. This long-awaited Third Edition of William H. Rae, Jr.'s landmark reference brings together essential information on all aspects of low-speed wind tunnel design, analysis, testing, and instrumentation in one easy-to-use resource. Written by authors who are among the most respected wind tunnel engineers in the world, this edition has been updated to address current topics and applications, and includes coverage of digital electronics, new instrumentation, video and photographic methods, pressure-sensitive paint, and liquid crystal-based measurement methods. The book is organized for quick access to topics of interest, and examines basic test techniques and objectives of modeling and testing aircraft designs in low-speed wind tunnels, as well as applications to fluid motion analysis, automobiles, marine vessels, buildings, bridges, and other structures subject to wind loading. Supplemented with real-world examples throughout, Low-Speed Wind Tunnel Testing, Third Edition is an indispensable resource for aerospace engineering students and professionals, engineers and researchers in the automotive industries, wind tunnel designers, architects, and others who need to get the most from low-speed wind tunnel technology and experiments in their work.
