Wind-tunnel Investigation of an External-flow Jet-flap Transport Configuration Having Full-span Triple-slotted Flaps PDF Download
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Author: Lysle P. Parlett
Publisher:
ISBN:
Category : Jet flaps (Airplanes)
Languages : en
Pages : 276
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Book Description
A wind-tunnel investigation has been conducted to determine the performance and static stability and control characteristics of an external-flow jet-flap transport configuration having inboard pod-mounted engines and full-span triple-slotted flaps. Tests were made with the engines mounted clustered at 22.0 percent and 30.4 percent semispan to represent double (Siamese) pods and with engines mounted at 22.0 percent and 41.7 percent semispan to represent a more spread arrangement. Tests were also made to evaluate the effectiveness of wing leading-edge blowing as a means of improving the aerodynamic efficiency of the configuration and of eliminating the large engine-out roll asymmetries that , occurred for the configuration when the wing with an engine out stalled first.
Author: Lysle P. Parlett
Publisher:
ISBN:
Category : Jet flaps (Airplanes)
Languages : en
Pages : 276
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Book Description
A wind-tunnel investigation has been conducted to determine the performance and static stability and control characteristics of an external-flow jet-flap transport configuration having inboard pod-mounted engines and full-span triple-slotted flaps. Tests were made with the engines mounted clustered at 22.0 percent and 30.4 percent semispan to represent double (Siamese) pods and with engines mounted at 22.0 percent and 41.7 percent semispan to represent a more spread arrangement. Tests were also made to evaluate the effectiveness of wing leading-edge blowing as a means of improving the aerodynamic efficiency of the configuration and of eliminating the large engine-out roll asymmetries that , occurred for the configuration when the wing with an engine out stalled first.
Author: Delma C. Freeman
Publisher:
ISBN:
Category : Flaps (Airplanes)
Languages : en
Pages : 132
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 730
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Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1290
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Book Description
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index.
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1388
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Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1408
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 818
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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: Harold P. Washington
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 60
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Author: Joseph R. Stephens
Publisher:
ISBN:
Category : Microstructure
Languages : en
Pages : 892
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Book Description
An investigation was conducted to determine the effect of temperature and composition on alloy softening in group VIA metals Cr, Mo, and W alloyed with Re. Results showed that alloy softening was similar in all three alloy systems occurring at homologous temperatures less than 0.16 and at Re concentrations less than 16 atom percent. Rhenium content required to produce a hardness minimum diminished rapidly in all three systems with increasing test temperature. The similarities in hardness behavior in these three alloy systems suggesat common softening mechanism which may arise from lowering the Peierls stress.
Author: Boyd Perry
Publisher:
ISBN:
Category : Aerodynamic load
Languages : en
Pages : 102
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Book Description
