Wind-tunnel Studies of Effects of Construction Methods, Design Details, and Canopy Slots on the Aerodynamic Characteristics of Small-scale All-flexible Parawings PDF Download
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Author: Paul G. Fournier
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 100
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Book Description
A low- speed wind-tunnel investigation was conducted to determine the effects of canopy construction methods, design details, and canopy slots on the static longitudinal aerodynamic characteristics of all-flexible parawings. Construction details such as type of nonporous canopy fabric, glued or sewed seams, tape reinforcement, or cloth-weave orientation had little effect on maximum lift-drag ratios and resultant-force coefficients. The maximum lift-drag ratios varied from 2.2 to 2.5 for the various single-keel unslotted parawings, and from 2.2 to 2.4 for the slotted canopy parawings. Incremental reductions in the lengths of all the suspension lines caused corresponding reductions in the resultantforce coefficients and maximum lift-drag ratios. The available range for modulation of resultant-force coefficient and lift-drag ratio by shortening the control lines was very limited.
Author: Paul G. Fournier
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 100
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Book Description
A low- speed wind-tunnel investigation was conducted to determine the effects of canopy construction methods, design details, and canopy slots on the static longitudinal aerodynamic characteristics of all-flexible parawings. Construction details such as type of nonporous canopy fabric, glued or sewed seams, tape reinforcement, or cloth-weave orientation had little effect on maximum lift-drag ratios and resultant-force coefficients. The maximum lift-drag ratios varied from 2.2 to 2.5 for the various single-keel unslotted parawings, and from 2.2 to 2.4 for the slotted canopy parawings. Incremental reductions in the lengths of all the suspension lines caused corresponding reductions in the resultantforce coefficients and maximum lift-drag ratios. The available range for modulation of resultant-force coefficient and lift-drag ratio by shortening the control lines was very limited.
Author: Paul G. Fournier
Publisher:
ISBN:
Category :
Languages : en
Pages : 91
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Book Description
Author: Paul G. Fournier
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 92
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Book Description
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1730
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 422
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Author:
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 776
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Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1464
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Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 1038
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Book Description
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.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 580
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Book Description
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)
Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1504
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Book Description