Large-scale Wind-tunnel Tests of an Airplane Model with an Unswept Tilt Wing of Aspect Ratio 5.5, and with Various Stall Control Devices PDF Download
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Author: James A. Weiberg
Publisher:
ISBN:
Category : Buffeting (Aerodynamics)
Languages : en
Pages : 54
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Book Description
Author: James A. Weiberg
Publisher:
ISBN:
Category : Buffeting (Aerodynamics)
Languages : en
Pages : 54
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Book Description
Author: Paul T. Soderman
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 108
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Book Description
The aerodynamic characteristics of a full scale executive type jet transport aircraft with a T-tail were investigated in a 40 x 80 ft (12.2 by 24.4 meter) wind tunnel (subsonic). Static, longitudinal, and lateral stability, and control characteristics were determined at angles of attack from -2 deg to 42 deg. The aircraft wing had 13 deg of sweep and an aspect ratio of 5.02. The aircraft was tested power off with various wing leading- and trailing-edge high lift devices. The basic configuration was tested with and without such components as engine nacelles, wing tip tanks, and empannage. Hinge-moment data were obtained and downwash angles in the horizontal-tail plane location were calculated. The data were obtained at Reynolds numbers of 4.1 million and 8.7 million based on mean aerodynamic chord. The model had static longitudinal stability through initial stall. Severe tail buffet occurred near the angle of attack for maximum lift. Above initial stall the aircraft had pronounced pitch-up, characteristic of T-tail configurations. A stable trim point was possible at angles of attack between 30 deg and 40 deg (depending on c.g. location and flap setting). Hinge-moment data showed no regions with adverse effects on stick force. Comparisons of wind-tunnel data and flight-test are presented.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 978
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Book Description
![Large Scale Wind-tunnel Tests of Airplane Model with Unswept, Aspect-ratio-10 Wing, 2 Propellers, and Blowing Flaps [with List of References] PDF](https://books.google.com/books/content/images/frontcover/vhRgswEACAAJ?fife=w80-h100)
Author:
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 47
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Author: David G. Koenig
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 66
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Book Description
An investigation of an airplane model was conducted to determine the effect of area-suction trailing-edge flaps and several leading-edge modifications on the aerodynamic characteristics of a 45 degree sweptback wing. The wing had an aspect ratio of 2.8 and a taper ratio of 0.17. The wing was tested with a small-span constant-chord flap and, to a lesser extent, with a larger span constant-percent wing-chord flap. Area suction was applied to both flaps. Leading-edge flaps are modified leading-edge contours were tested in an effort to produce adequate leading-edge stall control. A chord extension and a fence were also tested. Part of the testing was done with a horizontal tail installed above the extended wing-chord plane. The tests were made at a Reynolds number of 10,000,000.
Author: James A. Weiberg
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 76
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Book Description
Comparisons with the results of tests on the same model but having a combination slot suction and blowing boundary-layer-control system (Arado) on the trailing-edge flaps and ailerons indicated considerably lower suction flow requirements for the area-suction flaps.
Author: V. Robert Page
Publisher:
ISBN:
Category : Propeller-driven aircraft
Languages : en
Pages : 58
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Book Description
Author: Daniel W. Lester
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 686
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 60
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1020
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