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Two Dimensional Air Cushion Landing System Peripheral Jet Confirmation Study
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Book Synopsis Two-Dimensional Air Cushion Landing System Peripheral Jet Confirmation Study by : John R. Rogers
Download or read book Two-Dimensional Air Cushion Landing System Peripheral Jet Confirmation Study written by John R. Rogers and published by . This book was released on 1973 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: A simplified two-dimensional peripheral jet theory for the equilibrium performance of an air cushion vehicle is investigated. The proposed theory intends to yield a rapid prediction of the actual flow rate and actual power requirements for an air cushion landing system in the hover condition. Nine specific nozzle configurations were tested to determine which resulted in the best power-height performance and whether the theory is able to predict the experimental performance. Three single peripheral jet configurations were tested at a trunk pressure of 80 psfg. Six distributed jet configurations were tested at a trunk pressure of 40 psfg. Effects of inward flow injection angles of 30 degrees and 60 degrees were investigated.
Book Synopsis Two-dimensional Air Cushion Landing System Peripheral Jet Configuration Study by : John R. Rogers (CAPT, USAF.)
Download or read book Two-dimensional Air Cushion Landing System Peripheral Jet Configuration Study written by John R. Rogers (CAPT, USAF.) and published by . This book was released on 1973 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Two-Dimensional Air Cushion Landing System Peripheral Jet Configuration Study by : John Robert Rogers
Download or read book Two-Dimensional Air Cushion Landing System Peripheral Jet Configuration Study written by John Robert Rogers and published by . This book was released on 1973 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: A simplified two-dimensional peripheral jet theory for the equilibrium performance of an air cushion vehicle is investigated. The proposed theory intends to yield a rapid prediction of the actual flow rate and actual power requirements for an air cushion landing system in the hover condition. Nine specific nozzle configurations were tested to determine which resulted in the best power-height performance and whether the theory is able to predict the experimental performance. Three single peripheral jet configurations were tested at a trunk pressure of 80 psfg. Six distributed jet configurations were tested at a trunk pressure of 40 psfg. Effects of inward flow injection angles of 30 degrees and 60 degrees were investigated. (Modified author abstract).
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1974 with total page 960 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.
Book Synopsis Static Two Dimensional Performance of a Cushion Fed Air Cushion Landing System by : Eduardo M. Carreras (2LT, USAF.)
Download or read book Static Two Dimensional Performance of a Cushion Fed Air Cushion Landing System written by Eduardo M. Carreras (2LT, USAF.) and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Static Two Dimensional Performance of a Cushion Fed Air Cushion Landing System by : Eduardo M. Carreras
Download or read book Static Two Dimensional Performance of a Cushion Fed Air Cushion Landing System written by Eduardo M. Carreras and published by . This book was released on 1973 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tests were conducted on a two dimensional model of the trunk region of an air cushion landing system to determine the performance under different flow conditions. The purpose of these tests was to evaluate the effect of the trunk to cushion flow ratio, the cushion to trunk pressure ratio, the flow injection angle and the ratio of the escape area to the nozzle area. Performance was characterized by the ratio of the horsepower required to the horsepower required by an ideal plenum air cushion device under the same conditions. (Modified author abstract).
Download or read book Technical Information Indexes written by and published by . This book was released on 1974 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Theory of an Air Cushion Landing System for Aircraft by : Kennerly H. Digges
Download or read book Theory of an Air Cushion Landing System for Aircraft written by Kennerly H. Digges and published by . This book was released on 1970 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Air Cushion Landing System is a scheme to replace the wheeled landing gear on aircraft by a peripheral jet air cushion. The concept employs a flexible elastic membrane or 'trunk' which is attached to the bottom of the aircraft fuselage. During flight, the trunk shrinks elastically and hugs the bottom of the fuselage like a de-icing boot. When a flow of air is applied to the inside of the trunk, the elastic material stretches and forms an elongated doughnut-shaped protrusion on the underside of the aircraft. The air flow is ducted by the trunk to the fuselage periphery and exhausted through a large number of holes or slots. As a result, a pressure builds up under the aircraft when the ground is approached. The pressure is sufficient to support the aircraft and absorb its vertical landing velocity. The study develops analytical relationships between the variables associated with the Air Cushion Landing System. Included are the following: The derivation of a theory which predicts the static characteristics of the system; Analytical methods for predicting flow, jet height and power requirements; Curves which illustrate the interrelationships among the design variables; Computer programs for predicting the cross-sectional area and shape of the elastic trunk; The development and test of an analytical model which predicts the dynamic response of the system to landing impact; A discussion of the design considerations for the system.
Download or read book Aeronautical Engineering written by and published by . This book was released on 1986 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA)
Book Synopsis Government Reports Announcements by :
Download or read book Government Reports Announcements written by and published by . This book was released on 1974-02-22 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Landing-impact Studies of a 0.3-scale Model Air Cushion Landing System for a Navy Fighter Airplane by : Trafford J. W. Leland
Download or read book Landing-impact Studies of a 0.3-scale Model Air Cushion Landing System for a Navy Fighter Airplane written by Trafford J. W. Leland and published by . This book was released on 1975 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental study was conducted in order to determine the landing-impact behavior of a 0.3-scale, dynamically (but not physically) similar model of a high-density Navy fighter equipped with an air cushion landing system. The model was tested over a range of landing contact attitudes at high forward speeds and sink rates on a specialized test fixture at the Langley aircraft landing loads and traction facility. The investigation indicated that vertical acceleration at landing impact was highly dependent on the pitch angle at ground contact, the higher acceleration of approximately 5g occurring near zero body-pitch attitude. A limited number of low-speed taxi tests were made in order to determine model stability characteristics. The model was found to have good pitch-damping characteristics but stability in roll was marginal.
Download or read book Government Reports Index written by and published by . This book was released on 1975 with total page 1074 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1974 with total page 844 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1974 with total page 1064 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Air Cushion Landing Systems by : Hrishikesh Saha
Download or read book Air Cushion Landing Systems written by Hrishikesh Saha and published by . This book was released on 1973 with total page 876 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental and Analytical Studies of Advanced Air Cushion Landing Systems by :
Download or read book Experimental and Analytical Studies of Advanced Air Cushion Landing Systems written by and published by . This book was released on 1981 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental and Analytical Studies of Advanced Air Cushion Landing Systems by : E. G. S. Lee
Download or read book Experimental and Analytical Studies of Advanced Air Cushion Landing Systems written by E. G. S. Lee and published by . This book was released on 1981 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
