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Author : Gary L. Skinner
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (174 download)
Download or read book Tail Rotor Evaluation: AH-1G Helicopter with Model 212 Tail Rotor written by Gary L. Skinner and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John I. Nagata
Publisher :
ISBN 13 :
Total Pages : 121 pages
Book Rating : 4.:/5 (227 download)
Download or read book Engineering Flight Test - AH-1G Helicopter with Model 212 Tail Rotor. Part II. Performance and Handling Qualities written by John I. Nagata and published by . This book was released on 1973 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: The United States Army Aviation Systems Test Activity conducted a limited performance and handling qualities evaluation of the AH-1G helicopter with a Bell Helicopter Company commercial Model 212 tail rotor installed. This installation included changes to the pitch links and pitch control tube to accommodate the Model 212 tail rotor; however, the remaining components of the tail rotor drive system were standard AH-1G items. The evaluation was performed during the period 29 May to 7 August 1973 at Edwards Air Force Base, Bakersfield, and Bishop, California. (Modified author abstract).
Author : Gary L. Skinner
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (174 download)
Download or read book Engineering Flight Test: AH-1G Helicopter with Model 212 Tail Rotor written by Gary L. Skinner and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John I. Nagata
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (298 download)
Download or read book Engineering Flight Test: AH-1G Helicopter with Model 212 Tail Rotor written by John I. Nagata and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Leslie J. Hepler
Publisher :
ISBN 13 :
Total Pages : 128 pages
Book Rating : 4.:/5 (227 download)
Download or read book Engineering Flight Test - AH-1G Helicopter with Model 212 Tail Rotor. Part I. Load Survey written by Leslie J. Hepler and published by . This book was released on 1973 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: The United States Army Aviation Systems Test Activity conducted a limited tail boom flight load survey of the AH-1G helicopter equipped with a Model 212 tail rotor. Tests were performed to obtain base-line tail boom load data with a tractor tail rotor installation, then repeated with the Model 212 tail rotor installed on the same helicopter. This installation included changes to the pitch links and pitch control tube to accommodate the Model 212 tail rotor; however, the remaining components of the tail rotor drive system were standard AH-1G items. (Modified author abstract).
Author : John I. Nagata
Publisher :
ISBN 13 :
Total Pages : 87 pages
Book Rating : 4.:/5 (227 download)
Download or read book Army Preliminary Evaluation of the AH-1G Tractor Tail Rotor Modification written by John I. Nagata and published by . This book was released on 1969 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Army Preliminary Evaluation of the tractor tail rotor modification on the AH-1G helicopter was conducted. This test was conducted to confirm the results of the feasibility tests with the proposed final configuration for this modification and also to evaluate both the performance in hover and level flight and the handling qualities throughout the flight envelope. This modification provides an increase in the usable in-ground-effect (IGE) operating envelope and improves the directional control characteristics while maneuvering. The test showed good agreement with the results of the earlier feasibility tests. The maximum safe IGE maneuvering envelope for the tractor tail rotor AH-1G was determined and defined by those conditions of gross weight and density altitude where a 10-percent directional control margin was available in the critical azimuth in a 15-knot wind. Using the same criteria for the standard AH-1G configuration, the difference due to the improved directional control with the tractor tail rotor is equivalent to an additional 1500 pounds payload at the same density altitude.
Author : John I. Nagata
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (173 download)
Download or read book Army Preliminary Evaluation of the AH-1G Tractor Tail Rotor Modifiction written by John I. Nagata and published by . This book was released on 1969 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John R. Melton
Publisher :
ISBN 13 :
Total Pages : 77 pages
Book Rating : 4.:/5 (227 download)
Download or read book Feasibility Test of Tractor Tail Rotor Modification on the Ah-1g Helicopter written by John R. Melton and published by . This book was released on 1968 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: A feasibility test of the tractor tail rotor modification of the AH-1G helicopter was conducted near Fort Worth, Texas (550-feet elevation), and Alamosa, Colorado (7535-feet elevation), during the period 7 October to 19 October 1967. This test was conducted to obtain quantitative flight test data to serve as a basis for determining if the tractor tail rotor modification proposed by the contractor for the AH-1G helicopter would correct the directional control problems which currently exist on the AH-1G helicopter with the standard tail rotor configuration. This test revealed that in-ground-effect (IGE) low speed directional control and IGE low speed dynamic directional stability were greatly improved by installation of the tractor tail rotor, . IGE directional control limitations with the standard tail rotor installed were encountered at approximately 8100 pounds gross weight near sea level in previous tests. This test with the tractor tail rotor did not reveal any IGE directional control limitations at approximately 8940 pounds gross weight and near sea level. The test results indicate that additional directional control could be obtained with the tractor tail rotor, if the geometry of the directional control system were changed to negate the adverse effects of the stability and control augmentation system (SCAS) on the ability to obtain full left tail rotor pitch.
Author :
Publisher :
ISBN 13 :
Total Pages : 956 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 1988 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Leslie J. Hepler
Publisher :
ISBN 13 :
Total Pages : 21 pages
Book Rating : 4.:/5 (227 download)
Download or read book AH-1G Lateral Flight Performance Test written by Leslie J. Hepler and published by . This book was released on 1972 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: The lateral flight performance of the tractor-tail-rotor-configured AH-1G helicopter was evaluated at gross weights of 8500 and 9500 pounds. The AH-1G is capable of 0.53g and 0.38g accelerations in right and left lateral flight, respectively, at 8500 pounds. At a 9500-pound gross weight, acceleration was 0.23g to the right and 0.20g to the left. Aircraft handling qualitites and time required to attain maximum lateral velocity are dependent upon rate and type of control application. A step-type lateral control input permitted rapid attainment of accelerating attitude but produced yaw oscillations which resulted in loss of directional control and caused high pilot workload in stabilizing power and aircraft attitude. Ramp inputs delayed establishment of the accelerating attitude. A modified pulse input induced negligible roll and yaw oscillation and produced rapid establishment of the desired roll attitude. Direction-of-flight reversals induced large power transients that frequently exceeded the transmission torque limits. Precise heading and pitch attitude could not be maintained during the reversals. Airspeed in lateral flight could not be determined without special airspeed measuring devices. The sideward airspeed limit was exceeded frequently in left lateral flight with no warning or cue to the pilot that the limit had been reached.
Author : Joseph C. Watts
Publisher :
ISBN 13 :
Total Pages : 30 pages
Book Rating : 4.:/5 (227 download)
Download or read book Engineering Flight Test, AH-1G Helicopter, Heavyweight Autorotational Evaluation written by Joseph C. Watts and published by . This book was released on 1974 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Engineering flight tests were conducted by the United States Army Aviation Systems Test Activity to determine if any adverse autorotational entry or landing characteristics would preclude increasing the maximum operational gross weight of the AH-1G helicopter above the current 9500 pounds. A production AH-1G helicopter with tractor tail rotor was flown 14.4 hours at Edwards Air Force Base, California between 26 September and 12 October 1973 in the Hog configuration. Autorotational entries were performed successfully at gross weights from 9000 to 10,000 pounds from climbs, level flight, and dives. (Modified author abstract).
Author :
Publisher :
ISBN 13 :
Total Pages : 156 pages
Book Rating : 4.:/5 (317 download)
Download or read book Coupled Rotor/fuselage Dynamic Analysis of the AH-1G Helicopter and Correlation with Flight Vibrations Data written by and published by . This book was released on 1989 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : ARMY AVIATION TEST BOARD FORT RUCKER ALA.
Publisher :
ISBN 13 :
Total Pages : 3 pages
Book Rating : 4.:/5 (227 download)
Download or read book Evaluation of the Redesigned Tail-Rotor Assembly of the H-13H Helicopter written by ARMY AVIATION TEST BOARD FORT RUCKER ALA. and published by . This book was released on 1958 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this report was to conduct an evaluation of the redesigned tail-rotor assembly for the Bell H-13H Helicopter to determine the operational suitability of the tail-rotor assembly for Army use.
Author : John R. Burden
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (173 download)
Download or read book Instrument-flight-rules Evaluation AH1-G Helicopter with Tractor Tail Rotor written by John R. Burden and published by . This book was released on 1972 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 166 pages
Book Rating : 4.:/5 (317 download)
Download or read book Summary of AH-1G Flight Vibration Data for Validation of Coupled Rotor-fuselage Analyses written by and published by . This book was released on 1986 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Patrick J. Moe
Publisher :
ISBN 13 :
Total Pages : 43 pages
Book Rating : 4.:/5 (227 download)
Download or read book Preliminary Airworthiness Evaluation, AH-1G with the Airborne Target Acquisition Fire Control System and the HELLFIRE Modular Missile System Installed written by Patrick J. Moe and published by . This book was released on 1979 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: The AH-1G helicopter with the HELLFIRE modular Missile System (HMMS) and the Airborne Target Acquisition Fire Control System (ATAFCS) is being used as a surrogate trainer for the YAH-64 helicopter. The United States Army Aviation Engineering Flight Activity was tasked to provide quantitative and qualitative data on the handling qualities of the helicopter, obtain limited level flight performance data, and obtain limited handling qualities of the helicopter with only the ATAFCS installed. The test helicopter was a production AH-1G helicopter (212 tail rotor) modified with an ATAFCS mockup and carrying eight HELLFIRE missiles. Six productive flight test hours were flown in six flights. No shortcomings or deficiencies attributable to HMMS and ATAFCS installation were found. The AH-1G helicopter, with HMMS and ATAFCS installed, exhibits an additional equivalent flat plate area of 4.0 ft2 compared to the standard AH-1Q helicopter. The handling qualities of the helicopter with only the ATAFCS installed are essentially the same as the production AH-1G helicopter. (Author).
Author :
Publisher :
ISBN 13 :
Total Pages : 1094 pages
Book Rating : 4.:/5 (31 download)
Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1982 with total page 1094 pages. Available in PDF, EPUB and Kindle. Book excerpt:
