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Preliminary Flight Test Data Uh 1b High Performance Helicopter With Auxiliary Propulsion
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Book Synopsis Preliminary Flight Test Data. Uh-1b High Performance Helicopter with Auxiliary Propulsion by : ARMY TRANSPORTATION RESEARCH COMMAND FORT EUSTIS VA.
Download or read book Preliminary Flight Test Data. Uh-1b High Performance Helicopter with Auxiliary Propulsion written by ARMY TRANSPORTATION RESEARCH COMMAND FORT EUSTIS VA. and published by . This book was released on 1964 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preliminary Flight Test Data : UH-1B High Performance Helicopter by :
Download or read book Preliminary Flight Test Data : UH-1B High Performance Helicopter written by and published by . This book was released on 1964 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preliminary Flight Test Data. Uh-1 Compound Research Helicopter Flight Test Program by : ARMY AVIATION MATERIEL LABS FORT EUSTIS VA.
Download or read book Preliminary Flight Test Data. Uh-1 Compound Research Helicopter Flight Test Program written by ARMY AVIATION MATERIEL LABS FORT EUSTIS VA. and published by . This book was released on 1965 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: The preliminary results of flight tests are reported on the High Performance Helicopter (HPH) flight research program. (Author).
Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1967 with total page 866 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preliminary Flight Data on Compound High Performance UH-1 Helicopter by :
Download or read book Preliminary Flight Data on Compound High Performance UH-1 Helicopter written by and published by . This book was released on 1965 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preliminary Flight Test Data : UH-1 Compund Research Helicopter Flight Test Program by :
Download or read book Preliminary Flight Test Data : UH-1 Compund Research Helicopter Flight Test Program written by and published by . This book was released on 1965 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preliminary Flight Data on the Compound High Performance Uh-i Helicopter by : ARMY AVIATION MATERIEL LABS FORT EUSTIS VA.
Download or read book Preliminary Flight Data on the Compound High Performance Uh-i Helicopter written by ARMY AVIATION MATERIEL LABS FORT EUSTIS VA. and published by . This book was released on 1965 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: The results are presented of the flight tests of the maneuver envelope and specific flights for the purpose of obtaining stability and control data. The maneuver data are given in Section 1 and the stability and control data are given in Section 2. All data shown must be considered preliminary and subject to change. (Author).
Book Synopsis Preliminary Flight Test Data. Uh-2a with Horizontal Thrust Augmentation Provided by a Yj-85 Turbo-jet Engine by : ARMY TRANSPORTATION RESEARCH COMMAND FORT EUSTIS VA.
Download or read book Preliminary Flight Test Data. Uh-2a with Horizontal Thrust Augmentation Provided by a Yj-85 Turbo-jet Engine written by ARMY TRANSPORTATION RESEARCH COMMAND FORT EUSTIS VA. and published by . This book was released on 1964 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report summarizes the flight testing conducted on UH-2 helicopter BuNo. 147978, modified by the installation of a YJ85 turbo-jet engine for auxiliary propulsion, during the period 22 January 1964 through 3 Apr 1964. A total of 42 flights, involving 28.3 hours of aircraft time were conducted. (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 1993 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preliminary Flight Test Data : UH-2 Jet Compund Research Helicopter Flight Test Program by :
Download or read book Preliminary Flight Test Data : UH-2 Jet Compund Research Helicopter Flight Test Program written by and published by . This book was released on 1965 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preliminary Flight Test Data Uh-2a Jet Augmented Research Helicopter Maneuverability and Dynamic Stability Evaluation by : ARMY TRANSPORTATION RESEARCH COMMAND FORT EUSTIS VA.
Download or read book Preliminary Flight Test Data Uh-2a Jet Augmented Research Helicopter Maneuverability and Dynamic Stability Evaluation written by ARMY TRANSPORTATION RESEARCH COMMAND FORT EUSTIS VA. and published by . This book was released on 1965 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report describes and presents the results of a flight research program to investigate the effect of horizontal thrust augmentation from an auxiliary jet engine on the maneuverability and dynamic stability of the UH-2 helicopter. The effect of transient and steady state load factors on the air-speed envelope, as limited by retreating blade stall, was examined for three values of thrust augmentation. The onset of blade stall is shown to be delayed to higher airspeed by the application of thrust augmentation; the extent of the delay increases with load factor. For a given amount of thrust augmentation, the load factor in transient maneuvers is shown to be higher than for steady accelerated flight conditions. The dynamic response of the helicopter in pitch and yaw to simulated gust inputs was examined for various combinations of thrust augmentation and airspeed. Thrust augmentation tends to decrease control sensitivity and to provide increased damping about both pitch and yaw axes following a disturbance. Qualitative pilot opinion indicates that the helicopter is generally easier to fly as thrust augmentation is added. (Author).
Book Synopsis High-performance Uh-1 Compound Helicopter Maneuver Flight Test Program by : James F. VAN Wyckhouse
Download or read book High-performance Uh-1 Compound Helicopter Maneuver Flight Test Program written by James F. VAN Wyckhouse and published by . This book was released on 1966 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report presents the results of flight tests conducted with the USAAVLABS-Bell High Performance Compound Helicopter to extend its flight envelope. Particularly with respect to maneuvers. Rotors with standard UH-1B and tapered tip blades were evaluated. With the tapered tip blades, the compound helicopter was flown to a true air-speed of 221 knots and the rise in power required and rotor controls load associated with compressibility was delayed by about .05 Mach number. Approximately 55 maneuvers, encompassing a velocity-normal acceleration envelope exceeding 2g's at 190 knots, were accomplished. The distribution of lift between the wing and rotor is defined and it is shown that the rotor provides the largest increase of normal load factor during the maneuver. Normal maneuver and structural limited rotor thrust coefficients are defined as a function of advance ratio and rotor propulsive force. Although rotor system dynamics, blade twist, planform, airfoil, etc., will influence these values of limiting thrust coefficients, it is believed that with proper interpretation the limits shown are generally applicable to all rotorcraft. (Author).
Book Synopsis Engineering Flight Test of the Uh-1b Helicopter Equipped with the Model 540 Rotor System. Phase D by : Laurel G. Schroers
Download or read book Engineering Flight Test of the Uh-1b Helicopter Equipped with the Model 540 Rotor System. Phase D written by Laurel G. Schroers and published by . This book was released on 1966 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of the test were to determine the airworthiness and to define the performance characteristics and flying qualities of the helicopter. Test Results, where appropriate, were compared with previous test results of the standard UH-1B. Tests were conducted at Edwards Air Force Base, California, and at remote test sites in California and Colorado from 19 May 1965 through 30 April 1966. Total aircraft flight time was 336.30 hours. Quantitative helicopter performance was defined for hovering, takeoff, climb, level flight, and autorotation. Stability and control characteristics were investigated for varied conditions of altitude, airspeed, center-of-gravity location, and gross weight.
Download or read book Student Handbook written by and published by . This book was released on 1984 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Engineering Flight Test, YUH-1H Helicopter, Phase D (Limited). by : Floyd Dominick
Download or read book Engineering Flight Test, YUH-1H Helicopter, Phase D (Limited). written by Floyd Dominick and published by . This book was released on 1970 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of a limited Phase D Engineering Flight Test of the YUH-1H helicopter equipped with the Lycoming T53-L-13 engine. The objectives of the test were to define the increased performance, to evaluate the engine characteristics and to investigate the flying qualities resulting from the expanded flight envelope. One hundred and fifteen data flights were conducted from December 1966 to August 1967 accounting for 98 productive flight hours. Testing was conducted in California at Edwards Air Force Base and at auxiliary test sites at Bakersfield and Bishop. Helicopter performance was quantitatively defined for hover, takeoff, climb and level flights. Engine characteristics and helicopter flying qualities were determined quantitatively at specific flight conditions and were qualitatively investigated throughout the operating flight envelope. The performance of the UH-1D was significantly improved by the installation of the higher powered T53-L-13 engine which resulted in an increased weight, temperature and altitude flight envelope. The T53-L-13 engine demonstrated good dynamic characteristics except for instability at topping power and poor static characteristics. In general, the helicopter flying qualities were acceptable in forward flight. During low-speed flight and hover, the left directional control margin was inadequate. At a forward center of gravity, the helicopter has insufficient aft longitudinal control. To safely use the increased flight envelope, the control deficiencies must be corrected.
Book Synopsis Engineering Test of Uh-1b Helicopter Equipped with Floatation Landing Gear by : John T. Blaha
Download or read book Engineering Test of Uh-1b Helicopter Equipped with Floatation Landing Gear written by John T. Blaha and published by . This book was released on 1966 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: A limited engineering flight test evaluation of the UH-1B equipped with floatation landing gear was conducted by the U.S. Army Aviation Test Activity (USAAVNTA). The objectives of the program were to verify and amplify the data obtained during the manufacturer's flight testing and establish the basis for the Operator's Manual data to be used for UH-1B helicopters equipped with floatation landing gear. A total of 40 flights for 27 productive flight hours was flown at Edwards Air Force Base and Bakersfield, California, from 27 July 1965 through 10 September 1965. The UH-1B equipped with floatation landing gear could be flown with reasonable safety within a restricted flight envelope compared with a standard UH-1B. The water handling characteristics were considered excellent. Several warning statements and notations describing peculiarities in handling quantities were recommended for insertion in the Operator's Manual for operating UH-1B's with floatation landing gear. A restricted flight envelope was recommended for the UH-1B equipped with floatation landing gear. The performance test results were recommended for incorporation in the Operator's Manual.
Book Synopsis Engineering Flight Test of Uh-1b Helicopter Equipped with Xm-47 Antipersonnel Mine Dispensing Subsystem by : Manfred Reif
Download or read book Engineering Flight Test of Uh-1b Helicopter Equipped with Xm-47 Antipersonnel Mine Dispensing Subsystem written by Manfred Reif and published by . This book was released on 1966 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: A limited engineering flight test was conducted to provide sufficient engineering data for a safety-of-flight release for the UH-1B helicopter equipped with the XM-47 antipersonnel mine dispensing subsystem. An additional objective was to provide sufficient performance and stability and control data to update the operator's manual data to be used for UH-1B helicopters equipped with the XM-47 subsystem. Testing consisted of 42 productive flight hours. When the XM-47 mine dispensing subsystem was installed on the UH-1B helicopter, antipersonnel mines could be safely dispersed within the recommended flight envelopes. In cases of emergency the dispensers could be safely jettisoned within the recommended envelopes. Jettisons during entry into autorotation and in close proximity to the ground should be avoided. The flying qualities of the UH-1B were essentially unaffected by the installation of the XM-47 mine dispensing subsystem.
