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Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 88
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 88
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Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 214
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Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 372
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Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 872
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Author:
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ISBN:
Category :
Languages : en
Pages : 164
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Author:
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ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 772
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Author: Curt A. Holzhauser
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ISBN:
Category : Aircraft
Languages : en
Pages : 100
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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.
Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 716
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Author: United States. Superintendent of Documents
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ISBN:
Category : Government publications
Languages : en
Pages : 1320
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Author: Robert F. Stengel
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ISBN:
Category : Airplanes
Languages : en
Pages : 830
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