Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 188
Book Description
F/A-18 Forebody Vortex Control. Volume 1: Static Tests
F/A-18 Forebody Vortex Control: Static tests
F/A-18 Forebody Vortex Control. Volume 1
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781723052477
Category :
Languages : en
Pages : 184
Book Description
A wind tunnel test was conducted on a six percent model of the F/A-18 at the NASA Ames 7 X 10-Foot Low Speed Wind Tunnel. The primary objective of the test was to evaluate several forebody vortex control configurations at high angles of attack in order to determine the most effective method of obtaining well behaved yawing moments, in preparation for the rotary balance test. Both mechanical and pneumatic systems were tested. Single and dual rotating nose tip strakes and a vertical nose strake were tested at different sizes and deflections. A series of jet blowing configurations were located at various fuselage stations, azimuth angles, and pointing angles ranging from straight aft to 60 deg canted inboard. Slot blowing was investigated for several slot lengths and fuselage stations. The effect of blowing rate was tested for both of these pneumatic systems. The most effective configurations were then further tested with a variation of both sideslip angle and Reynolds number over a range of angles of attack from 0 to 60 deg. It was found that a very robust system can be developed that provides yawing moments at angles of attack up to 60 deg that significantly exceeds that available from 30 deg of rudder deflection (F/A-18 maximum) at 0 deg angle of attack. Kramer, Brian R. and Suarez, Carlos J. and Malcolm, Gerald N. and Ayers, Bert F. Unspecified Center AIRCRAFT CONTROL; ANGLE OF ATTACK; BLOWING; F-18 AIRCRAFT; FOREBODIES; STRAKES; VORTICES; WIND TUNNEL TESTS; BOUNDARY LAYER CONTROL; LATERAL CONTROL; REYNOLDS NUMBER; YAWING MOMENTS...
Publisher: Createspace Independent Publishing Platform
ISBN: 9781723052477
Category :
Languages : en
Pages : 184
Book Description
A wind tunnel test was conducted on a six percent model of the F/A-18 at the NASA Ames 7 X 10-Foot Low Speed Wind Tunnel. The primary objective of the test was to evaluate several forebody vortex control configurations at high angles of attack in order to determine the most effective method of obtaining well behaved yawing moments, in preparation for the rotary balance test. Both mechanical and pneumatic systems were tested. Single and dual rotating nose tip strakes and a vertical nose strake were tested at different sizes and deflections. A series of jet blowing configurations were located at various fuselage stations, azimuth angles, and pointing angles ranging from straight aft to 60 deg canted inboard. Slot blowing was investigated for several slot lengths and fuselage stations. The effect of blowing rate was tested for both of these pneumatic systems. The most effective configurations were then further tested with a variation of both sideslip angle and Reynolds number over a range of angles of attack from 0 to 60 deg. It was found that a very robust system can be developed that provides yawing moments at angles of attack up to 60 deg that significantly exceeds that available from 30 deg of rudder deflection (F/A-18 maximum) at 0 deg angle of attack. Kramer, Brian R. and Suarez, Carlos J. and Malcolm, Gerald N. and Ayers, Bert F. Unspecified Center AIRCRAFT CONTROL; ANGLE OF ATTACK; BLOWING; F-18 AIRCRAFT; FOREBODIES; STRAKES; VORTICES; WIND TUNNEL TESTS; BOUNDARY LAYER CONTROL; LATERAL CONTROL; REYNOLDS NUMBER; YAWING MOMENTS...
F/A-18 Forebody Vortex Control: Rotary-balance tests
Scientific and Technical Aerospace Reports
F/A-18 Forebody Vortex Control. Volume 2: Rotary-balance Tests
Government Reports Annual Index
Author:
Publisher:
ISBN:
Category : Government reports announcements & index
Languages : en
Pages : 1372
Book Description
Publisher:
ISBN:
Category : Government reports announcements & index
Languages : en
Pages : 1372
Book Description
Monthly Catalog of United States Government Publications
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1632
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1632
Book Description
Monthly Catalogue, United States Public Documents
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1638
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1638
Book Description