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AviationV/STOL

Total Results: 1106 Pages: Previous  3 4 5 6 7 [8] 9 10 11 12 13 Next Results per page:
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A Preliminary Investigation of Nomad Instrumentation Boom Vibration. FEB 1978
Authors:  P. A. Farrell; B. Quinn; AERONAUTICAL RESEARCH LABS MELBOURNE (AUSTRALIA)
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.An investigation of the lower order modes of vibration of an instrumentation boom fitted to a Nomad aircraft was carried out and the results are presented. Recommendations for reducing the amplitude of boom vibration experienced at take-off are made. (Author)


Resonance Test on Nomad N22 Fitted with External Stores. JAN 1978
Authors:  G. Long; C. M. Bailey; AERONAUTICAL RESEARCH LABS MELBOURNE (AUSTRALIA)
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A resonance test on the N22 Nomad, fitted with extenal stores, has been conducted. The natural modes and frequencies of vibration have been measured for two store configurations, in the frequency range up to 30 hertz. (Author)


An Introduction to V/STOL Technology Affecting The Pilot's Role. DEC 1977
Authors:  Robert F. Ringland; SYSTEMS TECHNOLOGY INC HAWTHORNE CALIF
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This report provides introductory material on the aerodynamics, propulsion, and flight control for V/STOL aircraft. Certain basic aspects of V/STOL technology and hardware are outlined, and deficiencies in past V/STOL aircraft which adversely impact the pilot's performance are discussed. The report is intended to provide background material on the human factors aspects of future V/STOL aircraft development.


The Feasibility of the Jet-Flap Rotor as a Lift Generator for Vertical Takeoff and Landing Aircraft. DEC 1977
Authors:  John Charles Ball; NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The objectives of this study were first to determine the effectiveness of the jet-flap rotor relative to other lift generators, and second to examine the potential effectiveness of the jet-flap rotor in a tactical VTOL aircraft. It was found that the jet-flap rotor has a high theoretical potential, but at present is the least-developed of the lift generators considered. The jet-flap rotor was found to be unattractive as a means ...


Application of AIDS to the A-7E and a Projected Future Tactical Aircraft. DEC 1977
Authors:  P. E. Greer; J. R. Hanking; VOUGHT CORP DALLAS TEX
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A study program to evaluate the application of the AIDS concept to the A-7E as well as a future tactical aircraft has been completed. The study evaluated the physical characteristics of the AIDS as applied to the A-7E and selected the Type 'A' V/STOL as the future tactical aircraft to evaluate physical compatibility, interface requirements, display format analysis, cockpit ambient lighting, and unique display system requirements associated with the V/STOL ...


Aircraft Configurations for High-Speed Ships, DEC 1977
Authors:  Thomas H. Boyd; DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD AVIATION AND SURFACE EFFECTS DEPT
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.An analytical study was conducted to establish high-speed ship compatible aircraft configurations and to determine their capabilities and limitations in Navy missions. The study was restricted to subsonic aircraft configurations. The interface problems and design constraints associated with the application of Navy aircraft to high-speed ships were identified. Current aircraft in the Navy inventory and proposed advanced concepts were reviewed for applicability. Three open-ocean scenarios using the high-speed potential of ...


A Comparative Analysis of USAF Fixed-Wing Aircraft Losses in Southeast Asia Combat DEC 1977
Authors:  Richard D. Gabbert; Gary B. Streets; AIR FORCE FLIGHT DYNAMICS LAB WRIGHT-PATTERSON AFB OH
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This report includes an analysis of all USAF fixed-wing aircraft combat losses in Southeast Asia from 1962 through 1973. Special attention is paid to aircraft loss rates, crewmember survival rates, threats encountered, and system(s) damaged. Specific comparisons are made among the F-4, F-105 and F-100 aircraft. The effect of one vs two engines upon aircraft survivability is addressed. An assessment of the effectiveness of fuel system vulnerability reduction modifications is ...


Modular Avionics Packaging (MAP). 30 NOV 1977
Authors:  GENERAL ELECTRIC CO UTICA N Y AIRCRAFT EQUIPMENT DIV
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.In considering Modular Avionics Packaging, the objective of the General Electric study program was to develop an avionics equipment packaging concept, compatible with MIL-E-5400, and applicable to multiplatform avionics requirements stretching into the 1990's. Specific elements evaluated were: Standard Avionics Module (SAM) requirements and concepts; integrated racks and WRA requirements and concepts; and airframe interface considerations. The V/STOL Type A platform was used as the driving requirement in performing trade-off ...


Problem of Investigating Takeoff-Landing Characteristics of Jet Aircraft with Short Takeoff and Landing Run, 11 NOV 1977
Authors:  V. I. Surus; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.


Investigation of VTOL Upwash Flows Formed by two Impinging Jets, NOV 1977
Authors:  Richard C. Jenkins; William G. Hill Jr; GRUMMAN AEROSPACE CORP BETHPAGE N Y RESEARCH DEPT
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This report presents results of an experimental investigation of the complex flows that occur under a VTOL vehicle operating near the ground. The effects of geometric and operating parameters on the upwash flow produced by ground impingement of two parallel subsonic jets have been modeled. This flow has been subdivided into separate, modular elements: jet impingement, wall jet behavior, stagnation line formation, and upwash flow field properties. Models have been ...


Invariant Automatic Stabilization System of a Vertical Takeoff and Landing Aircraft (VTOL) under Steady Flight Conditions, 19 OCT 1977
Authors:  R. M. Maresh; V. T. Vigovskiy; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.


Army Aviation RDT and E Plan. Sixth Edition. Executive Summary. OCT 1977
Authors:  ARMY RESEARCH AND TECHNOLOGY LABS MOFFETT FIELD CA
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.See AD-A049 214 for abstract.


Army Aviation RDT and E Plan. Sixth Edition. OCT 1977
Authors:  ARMY RESEARCH AND TECHNOLOGY LABS MOFFETT FIELD CA
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This Plan presents a time-phased analysis and presentation of the scientific and technological R/D efforts required to support the development of advanced airmobile systems responsive to the future needs of the Army. Plans and objectives are set forth for Army aviation research and development activities for FY78-97, with emphasis on the period from the present to 1982. Current R/D efforts in Army air mobility are directed primarily toward the development ...


Feasibility Study of TRISCAN Landing System. OCT 1977
Authors:  EATON CORP DEER PARK NY AIL DIV
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The Navy Vertical Takeoff and Landing Project (NAVOTLAND) has been established to improve the hover, approach and landing capabilities of Navy and Marine Corps V/STOL aircraft. These aircraft may be required to operate from aviation facilities ships (non-aviation ships), small aviation ships (such as LPH, LHA, VSS) and Marine Corps tactical sites. Common problems in the aircraft missions include operations under severe weather, day and night, often requiring the landing ...


Circulation Control -- An Updated Bibliography of DTNSRDC Research and Selected Outside References. SEP 1977
Authors:  Robert J. Englar; Michael B. Stone; Marion Hall; DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD AVIATION AND SURFACE EFFECTS DEPT
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This report is an update of a previously published bibliography of technical notes, formal reports, and technical papers by personnel of the Aviation and Surface Effects Department, David W. Taylor Naval Ship Research and Development Center (DTNSRDC). The update covers publication in the time period from the beginning of 1969 through mid-1977. The citations are arranged chronologically and represent the technology of circulation control as it has developed at DTNSRDC. ...


A State-of-the-Art Assessment of Air Data Sensors for Naval Aircraft. SEP 1977
Authors:  Robert Dale Neil; NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A review of current air data measurement techniques in Naval aircraft was conducted. Future requirements were identified for three classes of aircraft: conventional, fly-by-wire, and V/STOL. A survey of state-of-the-art air data sensors was performed based on information obtained from current literature, correspondence, and personal interviews with major government contractors, government agencies, and private companies. The major areas covered include pressure, airspeed, fiber optics, laser gyros, temperature, and fuel quantity. ...


Parametric Transonic Evaluation of Type a VSTOL Nacelle Drag. SEP 1977
Authors:  Jonah Ottensoser; DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD AVIATION AND SURFACE EFFECTS DEPT
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A parametric evaluation of the zero lift drag characteristics attributable to the large nacelles found on some Type A VSTOL candidate aircraft was conducted in the 7- by 10-foot transonic wind tunnel of the David W. Taylor Naval Ship Research and Development Center. Mounting the nacelles in proximity to the wings and fuselage yields levels of interference drag three to four times the isolated drag which results in the nacelle ...


HLH Drive System SEP 1977 455 pages
Authors:  J. C. Mack; BOEING VERTOL CO PHILADELPHIA PA
The full text of this report is available for sale.This report summarized the total Heavy Lift Helicopter Drive System Advanced Technology components (ATC) program. The program included the establishment of design criteria; the development testing of advanced technology components; the integration of these components into flight-weight, full-scale HLH transmissions; and the testing of the transmissions. The aft rotor and engine combining transmissions with associated drive shafting were designed, built, and tested. The transmission required to power the forward rotor ...


Low Speed Wind Tunnel Tests to Evaluate the Aerodynamic and Thermodynamic Characteristics of VSTOL Fountains and Inlet Reingestion, 29 AUG 1977
Authors:  M. B. Eilert; GENERAL DYNAMICS SAN DIEGO CA CONVAIR DIV
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The purpose of the test program was twofold; namely, (1) to obtain test data on fountain type flow fields that exist below hovering lift-jet type VTOL airplanes, and (2) to obtain test data on the hot-gas reingestion into the engine inlets for this type of aircraft. Measurements of dynamic pressure, flow angularity, and temperature distribution were measured in (1) the fountains produced by one, two, three, and four vertical jets, ...


Single-Slotted Positive Circulation Flap Apparatus for Vectored Thrust Aircraft. 12 AUG 1977
Authors:  Eddie G. Hollingsworth; Joseph J. Voda; DEPARTMENT OF THE NAVY WASHINGTON D C
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.Vectored-thrust aircraft, such as the Harrier AV-8B, have engine nozzles that controllably direct high energy exhaust streams downwardly to provide a high-lift take-off and landing capability. By mounting single-slotted, fixed-pivot trailing-edge flaps in close proximity to such nozzles, a new form of boundary layer control is achieved in which the induced airflow in the vicinity of the nozzle is utilized to provide the same high lift effectiveness as heavier, more ...


The XBQM-108A Vertical Attitude Takeoff and Landing Vehicle. AUG 1977
Authors:  W. H. Eilertson; DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.To assess the advantages of vertical attitude takeoff and landing, the Aviation and Surface Effects Department at the David W. Taylor Naval Ship Research and Development Center (DTNSRDC) designed and constructed a 560-lb demonstration vehicle (designated the XBQM-108A). The design incorporates a close-coupled canard/delta wing configuration that utilizes components from the MQM-74A target drone as well as the Harpoon missile. During the summer of 1976 this vehicle was successfully flight ...


Proceedings of Navy/NASA VSTOL Flying Qualities Workshop, held on 26 - 28 April 1977, at the Naval Postgraduate School, Monterey, CA, AUG 1977
Authors:  C. J. Mazza; D. M. Layton; L. V. Schmidt; NAVAL AIR SYSTEMS COMMAND WASHINGTON D C
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The workshop had as its principle goal an information exchange by technical specialists working in the fields of flying qualities, stability and control, flight controls and displays and the ship interface area. The purpose of the workshop was the identification of problems and issues crucial for providing V/STOL flying qualities requirements applicable to future commercial and military aircraft.


The Investigation of Take-off and Landing Characteristics of Jet Shortened Take-off and Landing Aircraft (STOL) (K Voprosu Issledovaniya Vzletno-Posadochnykh Kharakteristik Reaktivnykh Samoletov Ukorochennogo Vzleta i Posadki (SUVP)), 25 JUL 1977
Authors:  V. I. Surus; NAVAL INTELLIGENCE SUPPORT CENTER WASHINGTON D C TRANSLATION DIV
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The negative effect of secondary forces induced by the jet flow of the engine because of its ejection properties is not taken into account during the examination of aerodynamic and take-off and landing characteristics of jet STOL and VTOL aircraft (vertical take-off and landing aircraft). It can be so significant for certain STOL configurations (Figure 1) that aircraft equipped with a BLC system (boundary layer control) could be more preferable. ...


Specifications for IDAMST Software. Volume II. Appendices. JUL 1977
Authors:  A. Chamberlain; F. J. Dillon; F. H. Kishi; C. M. Powers; E. R. Shepardson; DOUGLAS AIRCRAFT CO LONG BEACH CA GOVERNMENT AVIONICS DEPT
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The significance of this research and development to the Air Force is the completion of major system analysis tasks defining software requirements and specification baselines on the Integrated Digital Avionics for the Medium STOL Transport (IDAMST). The work was performed under Contract F33615-76-C-1297 for the Air Force Base, Dayton, Ohio. These Phase I tasks have been completed to the point required by the contract. They furnish the system requirements baseline ...


Specifications for IDAMST Software. JUL 1977
Authors:  David G. Tubb; BOEING AEROSPACE CO SEATTLE WASH BOEING MILITARY AIRPLANE DEVELOPMENT
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The objective of this program was to define the operational flight program and operational test program for an Integrated Digital Avionics System for the Medium STOL (IDAMST) airplane. This effort is part of an Air Force Avionic Laboratory Program to specify a candidate avionics design based on DAIS technology. The approach involved the development of software requirements derived from the system analysis of the hardware baseline and the operational analysis ...


Specifications for IDAMST Software, Volume I. JUL 1977
Authors:  A. Chamberlain; F. J. Dillon; F. H. Kishi; C.M. Powers; E. R. Shepardson; DOUGLAS AIRCRAFT CO LONG BEACH CA GOVERNMENT AVIONICS DEPT
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The significance of this research and development to the Air Force is the completion of major system analysis tasks defining software requirements and specification baselines on the Integrated Digital Avionics for the Medium STOL Transport (IDAMST). The work was performed under Contract F33615-76-C-1297 for the Air Force Base, Dayton, Ohio. These Phase I tasks have been completed to the point required by the contract. They furnish the system requirements baseline ...


Specifications for IDAMST Software. (Mission Analysis). JUL 1977
Authors:  David G. Tubb; BOEING AEROSPACE CO SEATTLE WA BOEING MILITARY AIRPLANE DEVELOPMENT
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The objective of this program was to define the operational flight program and the operational test program for an Integrated Digital Avionics System (DAIS) for the Medium STOL (IDAMST) airplane. This effort is part of an Air Force Avionic Laboratory Program to specify a candidate avionics design based on DAIS technology. The approach involved the development of software requirements derived from the system analysis of the hardware baseline and the ...


Prediction of Aerodynamic Loads on Close-Coupled Canard Configurations - Theory and Experiment. JUL 1977
Authors:  R. W. Hale; P. Tan; D. E. Ordway; SAGE ACTION INC ITHACA N Y
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The close-coupled canard configuration has emerged as an advanced design for highly-maneuverable fighter aircraft, achieving much of its lift at high angles of attack from vortex lift. This paper summarizes the progress to data on a comprehensive investigation to develop a simplified theory for the aerodynamic performance. Flow visualization tests on a 6 ft (1.83 m) semi-span model of a representative configuration are first discussed. These tests are followed by ...


Multi Jet Induced Forces and Moments on VTOL Aircraft Hovering in and Out of Ground Effect 19 JUN 1977
Authors:  Donald R. Kotansky; Norbert A. Durando; Dean R. Bristow; Philip W. Saunders; NAVAL AIR DEVELOPMENT CENTER WARMINSTERPA
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.An engineering methodology has been developed for the prediction of propulsive lift system induced aerodynamic effects for multi-lift-jet VTOL aircraft operating in the hover mode in an out of ground effect. The developed methodology takes into account the effects of aircraft geometry, aircraft orientation (pitch, roll) and height above the ground plane, cross-flow, lift- jet vector directions with respect to the airframe, lift-jet exit flow conditions and noncircular nozzle exit ...


Aerial Resupply of Encircled Army Units During a Mid-Intensity European War. 10 JUN 1977
Authors:  Garry A. Schnelzer; ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KANS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This study addresses the mission of aerial resupply to encircled forces during a NATO versus Warsaw Pact conflict in Central Europe. Using, as a basis, European weather characteristics, the Soviet anti-air threat, and an armored brigade's resupply requirements, the C-130 and the Advanced Medium STOL Transport (AMST) are compared with each other and the overall mission requirements. The AMST's all-weather STOL capability, greater survivability in a hostile environment, and larger ...


Flight Control Testing of the VAK-191B Aircraft. 24 MAY 1977
Authors:  Robert L. Traskos; NAVAL AIR TEST CENTER PATUXENT RIVER MD
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The U.S. Navy/Federal Republic of Germany Joint Flight Test Program, using the VAK-191B aircraft, was conducted to expand the base of VSTOL technology. During the flight program, an integrated test block approach was considered mandatory for the acquisition of the required data in the limited flight time available. Ground and captive rig tests were used, when applicable, to supplement data acquisition. In spite of the configuration of the captive rig, ...


Fan Lift-Cruise V/STOL Aircraft. 10 MAY 1977
Authors:  John M. Peterson; DEPARTMENT OF THE NAVY WASHINGTON D C
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.An aircraft for making vertical and short field takeoffs is powered by a bypass turbofan engine having a core turbojet and a bypass fan. For vertical takeoffs, the efflux from the bypass fan is deflected downward to create lift. Exhaust from the core turbojet is ducted to turbine driven lifting fans at remote locations to create supplemental lifting forces which also provide aircraft control and stability. For cruise, the bypass ...


Life Cycle Cost Reduction Techniques Associated with Advanced Medium STOL Transport (AMST) MAY 1977 35 pages
Authors:  David R. Forville; DEFENSE SYSTEMS MANAGEMENT COLL FORT BELVOIR VA
The full text of this report is available for sale.The report considers what factors have to be conceived, developed, and evaluated in designing a transport aircraft system for introduction in the 1980's. The basic considerations are cost and the attempts made to reduce cost throughout the life cycle of the system. AMST, currently in the validation phase of its life cycle, is evaluated. The parameters considered for cost reduction are range/payload, cargo compartment size, operational field length, engine availability, ...


Cast Aluminum Structures Technology (CAST). Phase I. Preliminary Design MAY 1977 78 pages
Authors:  Donald Goehler; BOEING AEROSPACE CO SEATTLE WA
The full text of this report is available for sale.The objective of CAST is to establish the necessary structural and manufacturing technologies and to demonstrate and validate the integrity, producibility, and viability of cast aluminum primary airframe structures. The baseline design is the AMST prototype YC-14 and the component selected was the Nose Landing Gear Support Bulkhead. Preliminary design activities are described that were aimed at the minimum goal of 30% acquisition cost savings with no weight penalty. Preliminary ...


Development of Thermoplastic Composite Aircraft Structural Elements. MAY 1977
Authors:  R. C. Goad; GENERAL DYNAMICS/CONVAIR SAN DIEGO CALIF
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This work accomplished the design, fabrication, and testing of structural panels of representative thermoplastic construction suitable for use in the forward fuselage areas of advanced CTOL and V/STOL carrier-based Naval aircraft. (Author)


Proceedings of the Workshop on Engine-Airframe Integration (Short-Haul Aircraft) Held at the Naval Academy, Annapolis, Maryland on May 11-12, 1977, MAY 1977
Authors:  S. N. B. Murthy; PURDUE UNIV LAFAYETTE IND PROJECT SQUID HEADQUARTERS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The principal concerns in the development of air-breathing propulsion, it is generally agreed, are fuel availability, engine-airframe-control integration, life-cycle reliability and environmental problems. In several respects integration presents the most challenging problems from the point of view of future airplanes, especially those in which multi-mission capability, maneuverability and special flight characteristics are demanded. Within the framework of military aircraft technology, short-haul carriers with V/STOL capability constitute one of the important ...


Specialists' Meeting on Acoustic Fatigue Review. APR 1977
Authors:  ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT PARIS (FRANCE)
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The Panel decided that, some two years after the data sheets had been introduced, a review should be made of acoustic fatigue activities in the NATO countries as a guide to the need for any additional action in this subject and also to assess the use which had been made of the data sheets which the Panel had published. This present publication includes the five national papers presented at the ...


Aeromedical Evaluation of the Army Molecular Sieve Oxygen Generator (AMSOG) Systems. MAR 1977
Authors:  Frank S. Pettyjohn; Roderick J. McNeil; Lloyd A. Akers; George P. Rice; Charles F. Piper; ARMY AEROMEDICAL RESEARCH LAB FORT RUCKER ALA
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.Molecular sieve technology has been considered as an alternative source of oxygen for US Army operational fixed and rotary wing aircraft. With the constraints of weight, size, and electrical power, the Army molecular sieve oxygen generator (AMSOG) appeared to meet operational needs. Initial design was predicated on direct replacement of current oxygen equipment for the two man crew OV-1 Mohawk surveillance aircraft. Initial bench and hypobaric chamber testing demonstrates a ...


Variable Geometry and Multicycle Engines MAR 1977
Authors:  ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT NEUILLY-SUR-SEINE (FRANCE)
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.Contents: Session I-Military Aspects of Variable Geometry Engines; Opportunities for Variable Geometry Engines in Military Aircraft; Session II- Application of Variable Geometry Engines for Future Aircraft; Session III- Variable Geometry-Fans, Compressors, and Propellers; Session IV-Variable Geometry-Combustors and Turbines; Session V-Round Table Discussion.


Wind Tunnel Results of a 10-percent Scale Powered SCAT VTOL Aircraft. MAR 1977
Authors:  David G. Lee; David W. Lacey; DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD AVIATION AND SURFACE EFFECTS DEPT
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The low-speed aerodynamic characteristics of a 10-percent scale powered SCAT (Surveillance, Communications, ASMD Warning, and Targeting) configuration were investigated in the 8- by 10-foot subsonic north wind tunnel. Force and moment data were obtained for both powered and unpowered VTOL, fixed-wing aircraft. Analysis of the data indicate that the configuration is statically stable in both pitch and yaw and that control is adequate for both axes. The addition of a ...


Investigation of Feasible Nozzle Configurations for NOise Reduction in Turbofan and Turbojet Aircraft. Volume III. Shrouded Slot Nozzle Configurations. MAR 1977
Authors:  B. H. Goethert; J. R. Maus; William A. Dunnill; M. C. Joshi; V. Veerasamy; TENNESSEE UNIV SPACE INST TULLAHOMA
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This report presents the results of a study of the acoustic and fluid dynamic characteristics of a shrouded slot nozzle. Experiments were carried out on a slot nozzle of aspect ratio 27 with an ejector shroud having a cross sectional area of four times the primary nozzle area. Parameters varied during the tests were, shroud length, shroud divergence ratio, and acoustical impedance of the shroud wall. Tests were conducted for ...


On-Water Motion Relationships Study 15 JAN 1977
Authors:  James D. Aurand; ROCKWELL INTERNATIONAL COLUMBUS OH NORTH AMERICAN AIRCRAFT OPERATIONS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This report presents an on-water head seas motion analysis of three C/STOL and three V/STOL sea based aircraft configurations. Heave, pitch, acceleration, and slamming/wetness conditions are determined. Different forward speed conditions were studied. The effect of various configuration parameters (length, inertia, c.g. location, water plane area, etc) on head seas motion parameters was established. Sea state conditions from one to seven were studied. Fundamental sea state relationships and their effect ...


Low-Speed V/STOL Stability and Control Prediction. Volume I. Model Description and Validation. 11 JAN 1977
Authors:  J. W. Clark Jr; NAVAL AIR DEVELOPMENT CENTER WARMINSTER PA AIR VEHICLE TECHNOLOGY DEPT
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A unified prediction method is developed to support V/STOL Stability and Control analyses. The method is geared to a preliminary design environment to facilitate its application using the limited type of data normally available early in the design process. This volume describes the models which were developed or modified and their validation.


Low-Speed V/STOL Stability and Control Prediction. Volume II: Computer Program User Manual. 11 JAN 1977
Authors:  J. W. Clark Jr; NAVAL AIR DEVELOPMENT CENTER WARMINSTER PA AIR VEHICLE TECHNOLOGY DEPT
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A unified prediction method is developed to support V/STOL Stability and Control analysis. The method is geared to a preliminary design environment to facilitate its application using the limited type of data normally available early in the design process. This volume describes the computer program incorporating these models and the associated input data requirements and output format. (Author)


A Theoretical Method for Calculating the Aerodynamic Characteristics of Arbitrary Jet Flapped Wings. Volume II. EVD Jet-Wing Computer Program User's Manual, CDC 6000 Series Computers. Second Edition. 1977
Authors:  Michael L. Lopez; Cheng-Chung Shen; Norman F. Wasson; DOUGLAS AIRCRAFT CO LONG BEACH CALIF
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.


High Performance Composites and Adhesives for V/STOL Aircraft. DEC 1976
Authors:  Willard D. Bascom; Luther B. Lockhart Jr; NAVAL RESEARCH LAB WASHINGTON D C
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.An interdisciplinary program has been undertaken to address the composite and adhesive materials requirements of V/STOL aircraft. The primary tasks are to develop and characterize high modulus, high toughness resins with use temperatures of 350 F to 450 F or higher, to develop fabrication technology for newly developed resin matrices for graphite-fiber reinforced composites, to develop composite failure criteria for design optimization and to establish appropriate quality control parameters. The ...


Evaluation of Composite Wing for XFV-12A Airplane. DEC 1976
Authors:  D. N. Ulry; R. W. Gehring; K. I. Clayton; ROCKWELL INTERNATIONAL COLUMBUS OHIO COLUMBUS AIRCRAFT DIV
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A prior study conducted for the Naval Air Systems Command for application of advanced composites in the XFV-12A aircraft indicated the wing torque box to be the component of airframe structure having the greatest potential for significant weight savings through composite material application. A Phase II design/development program was undertaken to develop detail design concepts for a XFV-12A composite wing box and fabricate a representative section of this wing box ...


Sea Based Aircraft Habitability Criteria. 15 OCT 1976
Authors:  James D. Aurand; ROCKWELL INTERNATIONAL COLUMBUS OH NORTH AMERICAN AIRCRAFT OPERATIONS
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.This report defines sea based aircraft habitability criteria including vertical, lateral (horizontal) and roll limits for on-water operations. Heating, ventilation, air conditioning, illumination and volume limits are also indicated. Representative aircraft on-water motions are indicated and compared to motion sickness limits. No serious habitability limitations were uncovered for the surface following sea based aircrat concept. This report is a supplement to AD A035 344.


Army Aviation RDT and E Plan. Executive Summary. OCT 1976
Authors:  ARMY AVIATION SYSTEMS COMMAND ST LOUIS MO
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The Plan presents a time-phase analysis and presentation of the scientific and technological programs required to support the development of advanced airmobile systems responsive to the future needs of the Army. This document sets forth plans and objectives for Army aviation research and development activities for the FY77-96 period, with particular emphasis on the period from the present to 1981. Current R and D efforts in Army air mobility are ...


A Laboratory Investigation Into Flight Path Perturbations During Steep Descents of V/STOL Aircraft. AUG 1976
Authors:  L. D. Reid; B. Etkin; H. W. Teunissen; P. C. Hughes; TORONTO UNIV (ONTARIO) INST FOR AEROSPACE STUDIES
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.


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