Handling Qualities Experience With Several Vtol Research Aircraft

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Study of the Optimum Values of Several Parameters Affecting Longitudinal Handling Qualities of VTOL Aircraft

James R. Kelly,John F. Garren (Jr.),United States. National Aeronautics and Space Administration
Study of the Optimum Values of Several Parameters Affecting Longitudinal Handling Qualities of VTOL Aircraft Book PDF

Author : James R. Kelly,John F. Garren (Jr.),United States. National Aeronautics and Space Administration
Publisher : Unknown
Page : 18 pages
File Size : 55,8 Mb
Release : 1968
Category : Airplanes
ISBN : UIUC:30112106595223

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Study of the Optimum Values of Several Parameters Affecting Longitudinal Handling Qualities of VTOL Aircraft by James R. Kelly,John F. Garren (Jr.),United States. National Aeronautics and Space Administration Pdf

An Examination of Handling Qualities Criteria for V/STOL Aircraft

Seth B. Anderson
An Examination of Handling Qualities Criteria for V STOL Aircraft Book PDF

Author : Seth B. Anderson
Publisher : Unknown
Page : 58 pages
File Size : 54,7 Mb
Release : 1960
Category : Flight control
ISBN : NASA:31769000455462

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An Examination of Handling Qualities Criteria for V/STOL Aircraft by Seth B. Anderson Pdf

A study has been undertaken to define hand-ling qualities criteria for V/STOL aircraft. With the current military requirements for helicopters and airplanes as a framework, modifications and additions were made for conversion to a preliminary set of V/STOL requirements using a broad background of flight experience and pilots' comments from VTOL and STOL aircraft, BLC (boundary-layer-control) equipped aircraft, variable stability aircraft, flight simulators and landing approach studies. The report contains a discussion of the reasoning behind and the sources of information leading to suggested requirements. The results of the study indicate that the majority of V/STOL requirements can be defined by modifications to the helicopter and/or airplane requirements by appropriate definition of reference speeds. Areas where a requirement is included but where the information is felt to be inadequate to establish a firm quantitative requirement include the following: Control power and damping relationships about all axes for various sizes and types of aircraft; control power, sensitivity, d-amping and response for height control; dynamic longitudinal and dynamic lateral- directional stability in the transition region, including emergency operation; hovering steadiness; acceleration and deceleration in transition; descent rates and flight-path angles in steep approaches, and thrust margin for approach.

NASA Technical Note

Anonim
NASA Technical Note Book PDF

Author : Anonim
Publisher : Unknown
Page : 464 pages
File Size : 42,9 Mb
Release : 1965
Category : Electronic
ISBN : MINN:31951000845930Z

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NASA Technical Note by Anonim Pdf

NASA's Contributions to Aeronautics: Flight environment, operations, flight testing, and research

Anonim
NASA s Contributions to Aeronautics Flight environment operations flight testing and research Book PDF

Author : Anonim
Publisher : Unknown
Page : 1064 pages
File Size : 55,5 Mb
Release : 2010
Category : Aeronautics
ISBN : UCSD:31822036341212

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NASA's Contributions to Aeronautics: Flight environment, operations, flight testing, and research by Anonim Pdf

Two-volume collection of case studies on aspects of NACA-NASA research by noted engineers, airmen, historians, museum curators, journalists, and independent scholars. Explores various aspects of how NACA-NASA research took aeronautics from the subsonic to the hypersonic era.-publisher description.

NASA Technical Memorandum

Anonim
NASA Technical Memorandum Book PDF

Author : Anonim
Publisher : Unknown
Page : 280 pages
File Size : 46,9 Mb
Release : 1990
Category : Aeronautics
ISBN : MINN:31951P00161886Z

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NASA Technical Memorandum by Anonim Pdf

A Flight Evaluation of a VTOL Jet Transport Under Visual and Simulated Instrument Conditions

Curt A. Holzhauser
A Flight Evaluation of a VTOL Jet Transport Under Visual and Simulated Instrument Conditions Book PDF

Author : Curt A. Holzhauser
Publisher : Unknown
Page : 100 pages
File Size : 46,7 Mb
Release : 1972
Category : Aircraft
ISBN : UIUC:30112106884437

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A Flight Evaluation of a VTOL Jet Transport Under Visual and Simulated Instrument Conditions by Curt A. Holzhauser Pdf

A flight investigation was performed with the Dornier DO-31 VTOL to evaluate the performance, handling qualities, and operating characteristics that are considered to be important in the operation of a commercial VTOL transport in the terminal area. The DO-31, a 20,000 kilogram transport, has a mixed jet propulsion system; main engines with nozzles deflect from a cruise to a hover position, and vertical lift engines operated below 170 knots. This VTOL mode incorporates pitch and roll attitude and yaw rate stabilization. The tests concentrated on the transition, approach, and vertical landing. The mixed jet propulsion system provided a large usable performance envelope that enabled simulated IFR approaches to be made on 7 deg and 12 deg glide slopes. In these approaches management of thrust magnitude and direction was a primary problem, and some form of integrating the controls will be necessary. The handling qualities evaluation pointed out the need for additional research of define flight path criteria. The aircraft had satisfactory control and stability in hover out of ground effect. The recirculation effects in vertical landing were large below 15 meters.