Analytical Study to Determine the Improtant Performance Parmeters of Vertical Lift Shrouded Propellers PDF Download
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Author:
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ISBN:
Category : Performance
Languages : en
Pages : 104
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Author:
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ISBN:
Category : Performance
Languages : en
Pages : 104
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Author: UNITED TECHNOLOGIES CORP WINDSOR LOCKS CT HAMILTON STANDARD DIV.
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Category :
Languages : en
Pages : 1
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Author:
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Category :
Languages : en
Pages : 78
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Author: J. Bosschers
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Category :
Languages : en
Pages : 62
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Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 1390
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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: Arthur E. Johnson
Publisher:
ISBN:
Category :
Languages : en
Pages : 31
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Experimental investigations of shrouded air propellers in which propulsive efficiency in axial flow was measured have been reviewed. A simple, semi-empirical formula, using either measured or estimated shroud drag, gives good predictions of the propulsive efficiency at Mach numbers below the drag rise Mach number, provided the shroud does not have appreciable drag due to separation or interference between its various parts. For each shrouded propeller, there is a range of thrust coefficients in which near-maximum efficiency occurs that helps determine that shrouded propeller's applicability to a given aircraft propulsion requirement. Because of this characteristic, shrouded propellers for VTOL aircraft with good efficiency in both hover and cruise will probably have to have either variable intake lip geometry or variable disc area. (Author).
Author:
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ISBN:
Category : Science
Languages : en
Pages : 548
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Author: Venkatesh Jayaram
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Category : Aerodynamics
Languages : en
Pages : 144
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Author: Penny Farmer
Publisher: Springer Science & Business Media
ISBN: 3642826601
Category : Technology & Engineering
Languages : en
Pages : 172
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Author:
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ISBN:
Category : Science
Languages : en
Pages : 712
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