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Preliminary Airworthiness Evaluation Ah 1s Helicopter With Ogee Tip Shape Rotor Blades
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Book Synopsis Preliminary Airworthiness Evaluation AH-1S Helicopter with OGEE Tip Shape Rotor Blades by : Gary L. Bender
Download or read book Preliminary Airworthiness Evaluation AH-1S Helicopter with OGEE Tip Shape Rotor Blades written by Gary L. Bender and published by . This book was released on 1980 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: The United States Army Aviation Engineering Flight Activity conducted a Preliminary Airworthiness Evaluation of the AH-1S helicopter with OGEE tip-shape main rotor blades to determine if any improvement in performance or handling qualities resulted from replacing the K747 blades. Additionally, the acoustics signature of the OGEE blades were measured by the US Army Research and Technology Laboratories (Aeromechanics Lab). Tests were conducted at Edwards Air Force Base (elevation 2302 feet) and Coyote Flats (elevation 9980 feet), California from 1 November 1979 through 8 April 1980. Forty-five test flights were flown for a total of 36.6 productive hours (63.2 total hours). Both hover and level flight performance were degraded by installation of OGEE tip-shape main rotor blades. Low-speed handling qualities were unaffected by the OGEE blades. Other handling qualities tests were not accomplished. Results of acoustics tests will be reported by the laboratories under a separate cover. (Author).
Book Synopsis Preliminary Airworthiness Evaluation AH-1S Helicopter with Ogee Tip Shape Motor Blades by : Gary L. Bender
Download or read book Preliminary Airworthiness Evaluation AH-1S Helicopter with Ogee Tip Shape Motor Blades written by Gary L. Bender and published by . This book was released on 1980 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 1981 with total page 1370 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.
Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1980 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preliminary Airworthiness Evaluation AH-1S(Prod) Helicopter Equipped with a Substitute Straight Exhaust Pipe by : Patrick M. Morris
Download or read book Preliminary Airworthiness Evaluation AH-1S(Prod) Helicopter Equipped with a Substitute Straight Exhaust Pipe written by Patrick M. Morris and published by . This book was released on 1980 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: A limited performance and handling qualities evaluation and an engine and transmission cooling survey of an AH-1S (PROD) Helicopter equipped with a substitute straight exhaust pipe was performed at Edwards Air Force Base between 20 and 23 August 1979. A total of 8 hours, 6.3 of which were productive, was required. No significant changes in performance or handling qualities were found as a result of the substitute straight exhaust pipe installation. The engine and transmission cooling characteristics were similar to those of a production AH-1S and were satisfactory. No previously unreported shortcomings or deficiencies were identified. (Author).
Book Synopsis Preliminary Airworthiness Evaluation AH - 1S (MC (Modernized Cobra)) Helicopter with External Fuel Tanks Installed by : John I. Nagata
Download or read book Preliminary Airworthiness Evaluation AH - 1S (MC (Modernized Cobra)) Helicopter with External Fuel Tanks Installed written by John I. Nagata and published by . This book was released on 1984 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Preliminary Airworthiness Evaluation of the AH-1S Modernized Cobra, (S/N 69-16423) with the Kellett ferry tanks installed was conducted at Edwards Air Force Base, California (2302 feet) and Bakersfield, California (488 feet). Approximately 19 productive hours were flown during 24 flights between 17 March and 27 April 1984. The Kellett ferry tanks increased the equivalent flat plate area by 2.0 sq ft. One deficiency noted during the evaluation was the lack of crashworthiness of the external fuel tanks. Four shortcomings associated with the installation of the external fuel tanks were found.
Book Synopsis Preliminary Airworthiness Evaluation Ah-1S Helicopter Installed with Enhanced Cobra Armanent System (ah-1S/ECAS). by : Patrick J. Moe
Download or read book Preliminary Airworthiness Evaluation Ah-1S Helicopter Installed with Enhanced Cobra Armanent System (ah-1S/ECAS). written by Patrick J. Moe and published by . This book was released on 1979 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: The United States Army Aviation Engineering Flight Activity conducted a preliminary airworthiness evaluation of the Enhanced Cobra Armament System (ECAS) with the universal turret subsystem and M-197 20mm gun installed. The purpose of the test was to evaluate the effects of turret installation and weapons firing on the helicopter. Additionally, a limited stability and control evaluation of the helicopter (gun stowed) was conducted. Flight testing was performed at Yuma Proving Grounds, Arizona, and consisted of 27 flight test hours (15 productive).
Book Synopsis Preliminary Airworthiness Evaluation: AH-1S Helicopter Installed with Enhanced Cobra Armament System (AH-1S/ECAS) by : Patrick J. Moe
Download or read book Preliminary Airworthiness Evaluation: AH-1S Helicopter Installed with Enhanced Cobra Armament System (AH-1S/ECAS) written by Patrick J. Moe and published by . This book was released on 1979 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aeronautical Engineering written by and published by . This book was released on 1982 with total page 752 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 Combined Preliminary Airworthiness Evaluation and Airworthiness and Flight Characteristics Evaluation of the UH-1H with Preproduction Hub Spring and Composite Main Rotor Blades Installed by : Gary L. Skinner
Download or read book Combined Preliminary Airworthiness Evaluation and Airworthiness and Flight Characteristics Evaluation of the UH-1H with Preproduction Hub Spring and Composite Main Rotor Blades Installed written by Gary L. Skinner and published by . This book was released on 1988 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Army has incorporated a main rotor hub spring on the UH-1H helicopter designed to reduce large main rotor flapping angles which occur during some flight maneuvers. Composite main rotor blades (CMRB), also incorporated, are intended to increase performance and to improve reliability and survivability of the UH-1H. A preliminary airworthiness evaluation was conducted to determine suitability of the combined preproduction CMRB and hub spring configuration for compliance with the CMRB Critical Item Development Specification (CIDS). Due to high vibration characteristics and the occurrence of cyclic control feedback contributing to loss of aircraft control associated with CMRB, additional testing was conducted for comparison with standard metal main rotor blades (STD) and composite main rotor blades constructed with production tooling (PROD CMRB). Flight testing was evaluated under a variety of operating conditions from field elevations of 2302 ft to 9980 ft. Some improvement was noted in out-of-ground effect hover performance with PROD CMRB compared to CMRB, while level flight performance of the CMRB and PROD CMRB was not significantly different. Performance improved for the PROD CMRB compared to STD, but did not meet CIDS requirements. Handling qualities are similar for CMRB and PROD CMRB, and deteriorated when compared to STD with regard to maneuvering characteristics and main rotor speed control during autorotation. (edc).
Book Synopsis Fifty Years of Flight Research by : David F. Fisher
Download or read book Fifty Years of Flight Research written by David F. Fisher and published by . This book was released on 1999 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: A bibliography of Technical Reports from Dryden Research Center, 1946-1996. Dryden was a National Advisory Committee for Aeronautics (NACA) facility from to 1946-1958, when NACA became NASA (National Aeronautics and Space Administration). This bibliography encompasses both NACA and NASA publications. Illustrated with diagrams and photos. Black and white version.
Book Synopsis Preliminary Airworthiness Evaluation AH-1S Helicopter Equipped with a Garrett Infrared Radiation Suppressor and an AN/ALQ-144 Jammer by : Gary L. Bender
Download or read book Preliminary Airworthiness Evaluation AH-1S Helicopter Equipped with a Garrett Infrared Radiation Suppressor and an AN/ALQ-144 Jammer written by Gary L. Bender and published by . This book was released on 1978 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: The tests were conducted to determine the effects of installation of the IRS and the AN/ALQ-144 infrared jammer. There was no apparent effect on power required to hover and only a small increase in power required to maintain level flight. Because of a power-available degradation, however, there was a loss of 220 pounds payload in an out-of-ground-effect hover at 4000 feet, 35 C. Additionally, at 2000 feet, 25 c, and 9300 pounds gross weight, there was a reduction in maximum level flight airspeed of 3.5 knots true airspeed in the clean wing configuration. No degradation in handling qualities was caused by IRS or infrared jammer installation. However, one deficiency and six shortcomings inherent in the basic AH-1S were noted. The nonadjustable ventilation system is a deficiency because it blows dirt and dust into the pilot's eyes during operations from unprepared surfaces.
Download or read book NASA SP. written by and published by . This book was released on 1982 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Edict du roy contenant exemption et affranchissement de toutes commissions tant royales que de communautéz by :
Download or read book Edict du roy contenant exemption et affranchissement de toutes commissions tant royales que de communautéz written by and published by . This book was released on 1567 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preliminary Airworthiness Evaluation: EH-1H Helicopter Quick Fix Phase 1A. by : Robert M. Buckanin
Download or read book Preliminary Airworthiness Evaluation: EH-1H Helicopter Quick Fix Phase 1A. written by Robert M. Buckanin and published by . This book was released on 1977 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: The United States Army Aviation Engineering Flight Activity conducted a Preliminary Airworthiness Evaluation of the EH-1H Helicopter Quick Fix Phase 1A to determine the effects of the installation of the AN/ARQ-33 radio countermeasures system and its associated equipment on aircraft handling qualities. The helicopter was tested from 18 through 23 August 1977 at Naval Air Station, Pensacola, Florida. During the tests, nine flights totaling 8.5 productive flight hours were flown. The handling qualities of the EH-1H helicopter were determined to be satisfactory with the exception of inadequate directional control in right sideward flight. An enhancing characteristic noted was the simultaneous antenna retraction systems. Inadequate directional control at right sideward velocities between 5 and 15 knots true airspeed was a deficiency. Two shortcomings were noted: the susceptibility to damage of the right FM 10-120 homing antenna during preflight/maintenance operations and the susceptibility to damage of the FM 10-242 communications antenna during running takeoff/landing maneuvers. (Author).
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 1981 with total page 942 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preliminary Airworthiness Evaluation, AH-1G with the Airborne Target Acquisition Fire Control System and the HELLFIRE Modular Missile System Installed by : Patrick J. Moe
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).
