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Author : Joseph C. Watts
Publisher :
ISBN 13 :
Total Pages : 49 pages
Book Rating : 4.:/5 (492 download)
Download or read book Height-velocity Test OH-58A Helicopter written by Joseph C. Watts and published by . This book was released on 1971 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 288 pages
Book Rating : 4.:/5 (2 download)
Download or read book Operator's Manual written by and published by . This book was released on 1989 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert J. Pegg
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.:/5 (31 download)
Download or read book An Investigation of the Helicopter Height-velocity Diagram Showing Effects of Density Altitude and Gross Weight written by Robert J. Pegg and published by . This book was released on 1968 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 51 pages
Book Rating : 4.:/5 (227 download)
Download or read book Height-Velocity Test AH-1G Helicopter at Heavy Gross Weight. Part 1. Low Elevation written by and published by . This book was released on 1974 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: The United States Army Aviation Systems Test Activity conducted engineering flight tests to determine the operational height-velocity envelopes of the AH-1G helicopter at 9000 and 9500 pounds gross weight. This report constitutes the low elevation part of the evaluation conducted at Edwards Air Force Base, California, from 14 November 1973 through 5 February 1974. Operational height-velocity envelopes were defined from test data, are valid for 9000 and 9500 pounds at density altitudes up to 1000 feet, and represent combinations of airspeed and height above ground level where a straight-ahead landing may be accomplished following an engine failure. Autorotational landings at gross weights over 9250 pounds will probably result in rotor overspeed and the height above ground level at which the flare is executed becomes more critical as gross weight is increased to 9500 pounds. The operator's manual lacks clarity in describing pilot techniques to be used during the height-velocity maneuver and needs improvement in other areas. The height-velocity diagram developed during this evaluation, a discussion of the height-velocity diagram, a more thorough discussion of pilot techniques, the correct airspeed calibration chart, and the hog configuration descent performance chart should be incorporated in the operator's manual. A radio altimeter should be installed as standard equipment on the AH-1G helicopter.
Author : American Helicopter Society
Publisher :
ISBN 13 :
Total Pages : 326 pages
Book Rating : 4.X/5 ( download)
Download or read book Journal of the American Helicopter Society written by American Helicopter Society and published by . This book was released on 1983 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 504 pages
Book Rating : 4.3/5 (121 download)
Download or read book Proceedings of the 1980 Army Science Conference: Principal authors A through D written by and published by . This book was released on 1980 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gregory W. Condon
Publisher :
ISBN 13 :
Total Pages : 61 pages
Book Rating : 4.:/5 (173 download)
Download or read book Height - Velocity Test AH-1G Helicopter written by Gregory W. Condon and published by . This book was released on 1971 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: The AH-1G height-velocity (H-V) flight test program was conducted at auxiliary test sites near Shafter and Bishop, California. The objective of this program was to develop an operational AH-1G H-V envelope for incorporation into the operator's manual. Near maximum performance H-V envelopes were determined for two gross weights at each of two density altitudes. Operational H-V envelopes were defined from the test data and are valid for all gross weights up to 8300 pounds at density altitudes of sea level and 5500 feet. Although the operational envelopes allow an adequate safety margin, the operational aviator requires additional training to accomplish the specified performance. This training should consist of autorotational entries at all airspeeds for low skid heights and airspeeds below 60 knots for high skid heights. Further AH-1G H-V testing should be conducted to: define the H-V envelopes at gross weights between 8300 and 9500 pounds; determine the autorotational characteristics following a sudden engine failure while accelerating through the recommended takeoff corridor; accurately determine the amount of altitude lost in accelerating to forward airspeed, as a function of pitch rates and pitch attitudes; and to provide data for analysis of skid height above the ground versus advance ratio and density ratio. The operational H-V envelopes and recommended pilot techniques presented in this report should be incorporated into the operator's manual at the earliest possible date. The related information presently in the operator's manual is inaccurate, incomplete and dangerously misleading.
Author : Jack D. Hill
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (172 download)
Download or read book Product Improvement Test of OH-58A Helicopter, Cold Weather Test written by Jack D. Hill and published by . This book was released on 1970 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 702 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alastair Cooke
Publisher : John Wiley & Sons
ISBN 13 : 1405172541
Total Pages : 384 pages
Book Rating : 4.4/5 (51 download)
Download or read book Helicopter Test and Evaluation written by Alastair Cooke and published by John Wiley & Sons. This book was released on 2009-02-12 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although a number of texts on helicopter aerodynamics have been written, few have explained how the various theories concerning rotorborne flight underpin practical flight test and evaluation. This book combines theoretical information on aerodynamics, stability, control and performance with details of evaluation methodologies and practical guidance on the conduct of helicopter flight tests. For each topic the relevant theory is explained briefly and followed by details of the practical aspects of testing a conventional helicopter. These include: * safety considerations * planning the tests * the most efficient way to conduct individual flights Where possible typical test results are presented and discussed. The book draws on the authors' extensive experience in flight test and flight test training and will appeal not only to professionals working in the area of rotorcraft test and evaluation, but also to helicopter pilots, rotorcraft designers and manufacturers and final year undergraduates of aeronautical engineering
Author :
Publisher :
ISBN 13 :
Total Pages : 119 pages
Book Rating : 4.:/5 (227 download)
Download or read book Flight Test Evaluation of the High Inertia Rotor System written by and published by . This book was released on 1979 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this program were to document the reduction in height-velocity restrictions for autorotational landings, the increased transient performance and maneuver capability using modified flight techniques, and the handling qualities of a modified OH-58A helicopter with a High Energy Rotor System (HERS). The rotor incorporated increased chord blades and provision for three different tip weights resulting in Lock number variations of 2.61, 3. 14, and 5.43.
Author : William J. Hanley
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (227 download)
Download or read book An Analysis of the Helicopter Height Velocity Diagram Including a Practical Method for Its Determination written by William J. Hanley and published by . This book was released on 1968 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: A composite summary analysis was made of the height-velocity (H-V) diagram test data obtained from the flight testing of three single engine, single rotor helicopters of varying design characteristics and basic parameters. The purpose of this analysis was to ascertain if a practical method for the determination of the H-V diagram could be evolved, as well as a means to determine the effects of aircraft weight and altitude on the H-V diagram. Analysis disclosed that H-V diagrams can be developed for any conventional single rotor helicopter by the flight test determination of a single maximum performance critical speed (V sub cr) point in conjunction with the use of a non-dimensional curve and the solution of specific key point ratios which are set forth in the report. An evaluation of the H-V diagram key point relationships is presented followed by a discussion of the observed factors affecting autorotative landing following power failure. A suggested step by step procedure for flight manual type H-V diagrams is also presented.
Author :
Publisher :
ISBN 13 :
Total Pages : 216 pages
Book Rating : 4.E/5 ( download)
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Richard J. Followill
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (172 download)
Download or read book Product-improvement Test of OH-58A Helicopter, Cold Weather Test written by Richard J. Followill and published by . This book was released on 1971 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : ARMY AVIATION BOARD FORT RUCKER ALA.
Publisher :
ISBN 13 :
Total Pages : 172 pages
Book Rating : 4.:/5 (227 download)
Download or read book Product-Improvement Test, Maintainability and Reliability Characteristics of the OH-58A Helicopter Between 1,200 and 2,400 Flight Hours written by ARMY AVIATION BOARD FORT RUCKER ALA. and published by . This book was released on 1972 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evaluation of data obtained during this test revealed no significant difference in the maintainability and reliability of the OH-58A Helicopter during the 1,200- through 2,400-flight-hour period as compared with the 0- through 1,200-flight hour period. Copies of the complete data printouts are attached for each of the test helicopters.
Author : John I. Nagata
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (174 download)
Download or read book Height-velocity Evaluation: CH-47C Helicopter with T55-L-11A Engines written by John I. Nagata and published by . This book was released on 1972 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : T. W. Sanford
Publisher :
ISBN 13 :
Total Pages : 27 pages
Book Rating : 4.:/5 (616 download)
Download or read book Height Velocity Diagram Flight Test Project on the Bell 47G3B Helicopter written by T. W. Sanford and published by . This book was released on 1963 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
