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Wind Tunnel Free Flight Testing Techniques For Planar Motion Employed At The Naval Ordnance Laboratory
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Book Synopsis Wind Tunnel Free-flight Testing Techniques for Planar Motion Employed at the Naval Ordnance Laboratory by : A Leonas
Download or read book Wind Tunnel Free-flight Testing Techniques for Planar Motion Employed at the Naval Ordnance Laboratory written by A Leonas and published by . This book was released on 1967 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report is a summary of the planar motion free-flight testing techniques and procedures employed at the Naval Ordnance Laboratory, White Oak, Maryland. It is intended primarily to aid in standardizing the testing procedure and as a guide for further development in this field. (Author).
Book Synopsis Wind Tunnel Free-flight Testing Techniques for Planar Motion Employed at the Naval Ordnance Laboratory by : Algrid P. Leonas
Download or read book Wind Tunnel Free-flight Testing Techniques for Planar Motion Employed at the Naval Ordnance Laboratory written by Algrid P. Leonas and published by . This book was released on 1967 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report is a summary of the planar motion free-flight testing techniques and procedures employed at the Naval Ordnance Laboratory, White Oak, Maryland. It is intended primarily to aid in standardizing the testing procedure and as a guide for further development in this field. (Author).
Book Synopsis On Subscale Flight Testing by : Alejandro Sobron
Download or read book On Subscale Flight Testing written by Alejandro Sobron and published by Linköping University Electronic Press. This book was released on 2018-11-05 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Downscaled physical models, also referred to as subscale models, have played an essential role in the investigation of the complex physics of flight until the recent disruption of numerical simulation. Despite the fact that improvements in computational methods are slowly pushing experimental techniques towards a secondary role as verification or calibration tools, real-world testing of physical prototypes still provides an unmatched confidence. Physical models are very effective at revealing issues that are sometimes not correctly identified in the virtual domain, and hence can be a valuable complement to other design tools. But traditional wind-tunnel testing cannot always meet all of the requirements of modern aeronautical research and development. It is nowadays too expensive to use these scarce facilities to explore different design iterations during the initial stages of aircraft development, or to experiment with new and immature technologies. Testing of free-flight subscale models, referred to as Subscale Flight Testing (SFT), could offer an affordable and low-risk alternative for complementing conventional techniques with both qualitative and quantitative information. The miniaturisation of mechatronic systems, the advances in rapid-prototyping techniques and power storage, as well as new manufacturing methods, currently enable the development of sophisticated test objects at scales that were impractical some decades ago. Moreover, the recent boom in the commercial drone industry has driven a quick development of specialised electronics and sensors, which offer nowadays surprising capabilities at competitive prices. These recent technological disruptions have significantly altered the cost-benefit function of SFT and it is necessary to re-evaluate its potential in the contemporary aircraft development context. This thesis aims to increase the comprehension and knowledge of the SFT method in order to define a practical framework for its use in aircraft design; focusing on low-cost, short-time solutions that don’t require more than a small organization and few resources. This objective is approached from a theoretical point of view by means of an analysis of the physical and practical limitations of the scaling laws; and from an empirical point of view by means of field experiments aimed at identifying practical needs for equipment, methods, and tools. A low-cost data acquisition system is developed and tested; a novel method for semi-automated flight testing in small airspaces is proposed; a set of tools for analysis and visualisation of flight data is presented; and it is also demonstrated that it is possible to explore and demonstrate new technology using SFT with a very limited amount of economic and human resources. All these, together with a theoretical review and contextualisation, contribute to increasing the comprehension and knowledge of the SFT method in general, and its potential applications in aircraft conceptual design in particular.
Book Synopsis U.S. Government Research & Development Reports by :
Download or read book U.S. Government Research & Development Reports written by and published by . This book was released on 1967 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hypersonic Pitch-damping Support Using Water-cooled Ball Bearings by : Frank J. Regan
Download or read book Hypersonic Pitch-damping Support Using Water-cooled Ball Bearings written by Frank J. Regan and published by . This book was released on 1968 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Free oscillation pitch-damping measurements were made on a nine degree half-angle cone at a Mach number of 8.0. The report discusses the design of the support, the water cooling system and its effectiveness in controlling the thermal environment of the bearings. In addition, an outline is given of a theoretical technique for calculation of the damping in pitch derivative for slender cones called the shock expansion method. Comparisons are made between theory and experiment. (Author).
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 1968 with total page 284 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 Free and Semi-free Model Flight-testing Techniques Used in Low-speed Studies of Dynamic Stability and Control by : John Paul Campbell
Download or read book Free and Semi-free Model Flight-testing Techniques Used in Low-speed Studies of Dynamic Stability and Control written by John Paul Campbell and published by . This book was released on 1963 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Development and Evaluation of the CAL/Air Force Dynamic Wind-tunnel Testing System by : Irving C. Statler
Download or read book The Development and Evaluation of the CAL/Air Force Dynamic Wind-tunnel Testing System written by Irving C. Statler and published by . This book was released on 1967 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Cornell Aeronautical Laboratory (CAL) system provides a unique mounting through which a model can be forced precisely in any desired planar sinusoidal motion. The versatility and overall accuracy of the CAL/Air Force dynamic testing system was demonstrated during a series of wind-tunnel tests. These tests permitted, for the first time, a measurement of the separate components of the rotary damping moment. The moment due to rate of change of angle of attack was measured by oscillating the model in pure plunging motion. The moment due to pitch rate was measured during pitching motion. The sum of these is compared with the total rotary damping moment as measured in rotation. Comparisons of data taken at two frequencies and four Mach numbers indicate that the components are accurate to within plus or minus ten percent of the total rotary damping moment. The results are compared with theory, flight test data, and other wind-tunnel measurements on the same and similar models. Future applications of this equipment are reviewed, particularly with regard to its use as a research tool to support basic investigations for the development of theoretical or semiempirical methods for predicting dynamic stability characteristics of aircraft at transonic speeds. (Author).
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:
Book Synopsis Government-wide Index to Federal Research & Development Reports by :
Download or read book Government-wide Index to Federal Research & Development Reports written by and published by . This book was released on 1967-10 with total page 1020 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ballistic-range Technology by : Ames Research Center
Download or read book Ballistic-range Technology written by Ames Research Center and published by . This book was released on 1970 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Airborne Model Test Facility of the United States Navy 'the Flying Wind Tunnel'. by : NAVAL AIR TEST FACILITY LAKEHURST N J.
Download or read book The Airborne Model Test Facility of the United States Navy 'the Flying Wind Tunnel'. written by NAVAL AIR TEST FACILITY LAKEHURST N J. and published by . This book was released on 1961 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the advent of VTOL/STOL aircraft, it has become increasingly necessary to expand our knowledge in the field of low-speed aerodynamics. At the present time there is an appalling lack of experimental test data applicable to this type of high power-to-weight ratio aircraft. As a result, analytical work on evaluating simple static stability derivatives is almost non-existent and most of what has been done has not been confirmed nor correlated with test information. The Subsonic Aerodynamics Laboratory of Princeton University, in co-operation with the Airship Test and Development Department, NAS, Lakehurst, has developed a Flying Wind Tunnel, utilizing a Navy ZPG-2 airship as the stable model carriage. The airship has been modified to serve as the inflight laboratory and data reducing center for such inflight model testing. Models are flown beneath the airship and the data received, reduced, and analyzed inflight in this laboratory. This airship as a flying wind tunnel has been shown to give accurate, repeatable data for a variety of configurations with no difficulty. (Author).
Author :ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT NEUILLY-SUR-SEINE (France) Publisher : ISBN 13 : Total Pages :539 pages Book Rating :4.:/5 (227 download)
Book Synopsis Ground/Flight Test Techniques and Correlation by : ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT NEUILLY-SUR-SEINE (France)
Download or read book Ground/Flight Test Techniques and Correlation written by ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT NEUILLY-SUR-SEINE (France) and published by . This book was released on 1983 with total page 539 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents: Conclusions of the FMP Symposium in Valloire (1975) and Progress on Ground/Fight Correlation; Progress in Wind Tunnel Test Techniques and in the Corrections and Analysis of the Results; Ground/Flight Correlation on the Space Shuttle Orbiter from Re-Entry to Landing; Ground/Flight Correlation on the Alpha-Jet Experimental Aircraft with a Transonic Wing; Flight and Wind-Tunnel Correlation of Boundary-Layer Transition on the AEDC Transition Cone; Experimental Investigations of Transport Aircraft Low Speed Engine Interference Effects and Flight Test Correlation; Comparison of Prediction, Wind Tunnel and Flight Test Data for the Canadair Challenger Turbofan Aircraft; Lessons from Tornado Afterbody Development; The Use of Free-Flight Models for the Prediction of Departure Control; Comparison of Flight and Wind Tunnel Buffeting Measurements on the SAAB 105 Aircraft; Some Measurements of Buffeting on a Flutter Model of a Typical Strike Aircraft; Correlation Aspects of Analytical Wind Tunnel and Flight Test Results for a Hingeless Rotor Helicopter; Dynamic Structural Aeroelastic Stability Testing of the XV-15 Tilt Rotor Research Aircraft; Structural Aspects of Ground/Flight Correlation on the Variable Sweep Wing Aircraft Tornado; Real-Time Flutter Analysis of an Active Flutter-Suppression System on a Remotely Piloted Research Aircraft; Flight Flutter Testing with Emphasis on the Tip Vane Method.
Book Synopsis Government Reports Announcements by :
Download or read book Government Reports Announcements written by and published by . This book was released on 1972 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Organisation Du Traité De L'Atlantique Nord. Bruxelles. Agard. Neuilly-sur-Seine. Wind tunnel and model testing panel Conférence 1955, juin. Ottawa Publisher : ISBN 13 : Total Pages :161 pages Book Rating :4.:/5 (462 download)
Book Synopsis Papers Presented at the Joint Session of the Flight Test Techniques and Wind Tunnel and Model Testing Panels by : Organisation Du Traité De L'Atlantique Nord. Bruxelles. Agard. Neuilly-sur-Seine. Wind tunnel and model testing panel Conférence 1955, juin. Ottawa
Download or read book Papers Presented at the Joint Session of the Flight Test Techniques and Wind Tunnel and Model Testing Panels written by Organisation Du Traité De L'Atlantique Nord. Bruxelles. Agard. Neuilly-sur-Seine. Wind tunnel and model testing panel Conférence 1955, juin. Ottawa and published by . This book was released on 1956 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis U. S. Government Research and Development Reports by :
Download or read book U. S. Government Research and Development Reports written by and published by . This book was released on 1969 with total page 1214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bibliography of Scientific and Industrial Reports by :
Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1971 with total page 1374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
