Author: Jack H. Goodykoontz
Publisher:
ISBN:
Category : Flaps (Airplanes)
Languages : en
Pages : 60
Book Description
Noise tests were conducted on a large scale model of an externally blown flap lift augmentation system, employing a mixer nozzle. The mixer nozzle consisted of seven flow passages with a total equivalent diameter of 40 centimeters. With the flaps in the 30 - 60 deg setting, the noise level below the wing was less with the mixer nozzle than when a standard circular nozzle was used. At the 10 - 20 deg flap setting, the noise levels were about the same when either nozzle was used. With retracted flaps, the noise level was higher when the mixer nozzle was used.
Noise Tests of a Mixer Nozzle-externally Blown Flap System
Author: Jack H. Goodykoontz
Publisher:
ISBN:
Category : Flaps (Airplanes)
Languages : en
Pages : 60
Book Description
Noise tests were conducted on a large scale model of an externally blown flap lift augmentation system, employing a mixer nozzle. The mixer nozzle consisted of seven flow passages with a total equivalent diameter of 40 centimeters. With the flaps in the 30 - 60 deg setting, the noise level below the wing was less with the mixer nozzle than when a standard circular nozzle was used. At the 10 - 20 deg flap setting, the noise levels were about the same when either nozzle was used. With retracted flaps, the noise level was higher when the mixer nozzle was used.
Publisher:
ISBN:
Category : Flaps (Airplanes)
Languages : en
Pages : 60
Book Description
Noise tests were conducted on a large scale model of an externally blown flap lift augmentation system, employing a mixer nozzle. The mixer nozzle consisted of seven flow passages with a total equivalent diameter of 40 centimeters. With the flaps in the 30 - 60 deg setting, the noise level below the wing was less with the mixer nozzle than when a standard circular nozzle was used. At the 10 - 20 deg flap setting, the noise levels were about the same when either nozzle was used. With retracted flaps, the noise level was higher when the mixer nozzle was used.
Blown Flap Noise Prediction
NASA Technical Note
Externally-blown-flap Noise
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 782
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.
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 782
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.
Technical Information Indexes
Author:
Publisher:
ISBN:
Category : Aeronautics, Military
Languages : en
Pages : 150
Book Description
Publisher:
ISBN:
Category : Aeronautics, Military
Languages : en
Pages : 150
Book Description
NASA Technical Memorandum
Noise Reduction Tests of Large Scale Model Externally Blown Flap Using Trailing-edge Blowing and Partial Flap Slot Covering
Author: Daniel J. McKinzie
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 70
Book Description
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 70
Book Description
Monthly Catalog, United States Public Documents
Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1252
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.
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1252
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.
Monthly Catalog of United States Government Publications
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1386
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1386
Book Description