Download or read book Wind tunnel Tests of a Series of Parachutes Designed for Controllable Gliding Flight written by James A. Weiberg and published by . This book was released on 1967 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wind tunnel Investigation of the Static Aerodynamic Characteristics of a Multilobe Gliding Parachute written by George M. Ware and published by . This book was released on 1968 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NASA Technical Note written by and published by . This book was released on 1971 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wind tunnel Tests of a Series of 18 foot diameter Parachutes with Extendable Flaps written by Berl Gamse and published by . This book was released on 1962 with total page 40 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 Test Fixture and Data Acquisition System for Wind Tunnel Testing of Parachutes written by Charles J. Silcot and published by . This book was released on 1968 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: After the analysis of the means of measuring the force and stability characteristics of flexible, steerable, gliding parachutes in the AFFDL 12-foot open-throat vertical wind tunnel at Wright-Patterson Air Force Base, a system was designed, fabricated, installed, and tested for acceptance. This system consists of two major components: The first major component, a test fixture-balance assembly, provides the means of remotely operating model parachutes through various roll, pitch, and yaw angles. This assembly consists basically of a roll-traversing mechanism which supports a sting balance as it rolls and yaws along the inner perimeter of a semicircular trussed hoop. The hoop rests on a two-part structure designed for temporary installment above the tunnel lip. For the parachute attachment and positioning, the sting balance was selected in a preliminary study in preference to the wire or strut type of balance. The second major component, a data acquisition and readout system, displays and records in digital form the normal and axial forces and the moments at various canopy pitch, roll, and yaw attitudes. In the acceptance tests with a 9.375-foot steerable parachute canopy, lift, drag, and pitching moment were obtained at various angles of pitch and at air velocities ranging from 50 to 100 feet per second.

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1988 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Download or read book A Selected Listing of NASA Scientific and Technical Reports written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Division and published by . This book was released on 1968 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NASA Scientific and Technical Reports written by United States. National Aeronautics and Space Administration Scientific and Technical Information Division and published by . This book was released on 1968 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings Intersociety Conference on Transportation written by and published by . This book was released on 1972 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NASA Historical Data Book Programs and projects 1958 1968 written by and published by . This book was released on 1988 with total page 664 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 1967 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 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 Monthly Catalog of United States Government Publications written by and published by . This book was released on 1967 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Government wide Index to Federal Research Development Reports written by and published by . This book was released on 1967 with total page 1062 pages. Available in PDF, EPUB and Kindle. Book excerpt: