Flight Investigation Of Some Effects Of A Vane Controlled Gust Alleviation System On The Wing And Tail Loads Fo A Transport Airplane
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Author | : Russell L. Schott |
Publisher | : |
Total Pages | : 36 |
Release | : 1961 |
Genre | : Aerodynamics |
ISBN | : |
Download Flight Investigation of Some Effects of a Vane-controlled Gust-alleviation System on the Wing and Tail Loads Fo a Transport Airplane Book in PDF, Epub and Kindle
Author | : Russell L. Schott |
Publisher | : |
Total Pages | : 32 |
Release | : 1961 |
Genre | : |
ISBN | : |
Download Flight Investigation of Some Effects of a Vane-controlled Gust-alleviation System on the Wing and Tail Loads Fo a Transport Airplane Book in PDF, Epub and Kindle
Author | : Russell L. Schott |
Publisher | : |
Total Pages | : 32 |
Release | : 1961 |
Genre | : |
ISBN | : |
Download Flight Investigation of Some Effects of a Vane-Controlled Gust-Alleviation System on the Wing and Tail Loads of a Transport Airplane Book in PDF, Epub and Kindle
Author | : T. V. Cooney |
Publisher | : |
Total Pages | : 31 |
Release | : 1956 |
Genre | : Airplanes |
ISBN | : |
Download Initial Results of a Flight Investigation of the Wing and Tail Loads on an Airplane Equipped with a Vane-controlled Gust-alleviation System Book in PDF, Epub and Kindle
Results are given of an analysis of wing and horizontal-tail spar strains measured on a twin-engine light transport airplane which was modified for the installation of a control system to alleviate airplane motions in turbulent air and thus improve passenger comfort. From a sample of the measurements obtained in flight through clear-air turbulence, normal acceleration at the airplane center of gravity was reduced 43 percent, wing main-spar bending strains were reduced, and wing-spar shear strains were increased. Horizontal-tail shear and bending strains were increased. Measurements of aerodynamic loads obtained in a pull-up with the gust-alleviation system in operation are also presented.
Author | : Paul A. Hunter |
Publisher | : |
Total Pages | : 98 |
Release | : 1961 |
Genre | : |
ISBN | : |
Download A Flight Investigation of an Automatic Gust-Alleviation System in a Transport Airplane Book in PDF, Epub and Kindle
A flight investigation has been conducted of an automatic gust-alleviation system designed primarily to improve riding comfort in rough air. The gusts were sensed by a vane located on a boom ahead of the airplane. The wing flags moved in response to the vane in such a way as to counteract the change in wing lift due to the gust and a portion of the elevator moved to counteract pitching moments due to flap deflection. In the final configurations, inboard portions of the wing flaps also moved in such a way as to counteract the change in angle of attack at the tail due to the gust. The result indicate alleviation of normal acceleration of up to about 60 percent at the natural frequency of the airplane (0.6 cycle per second) and about 40 percent at 2 cycles per second. A further increase in riding comfort was achieved by a simultaneous alleviation of pitching velocity. For this particular airplane, gusts having frequencies greater than 1.5 cycles per second at a speed of 130 knots had little effect on riding comfort. Brief tests were also made of a configuration intended for reducing structural loads and of a configuration utilizing an accelerometer as the gust sensor. The gust alleviation capabilities of these configurations were somewhat less than that of the optimum configuration with vane-type gust sensor.
Author | : |
Publisher | : |
Total Pages | : 382 |
Release | : 1960 |
Genre | : |
ISBN | : |
Download NASA Technical Note Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 1368 |
Release | : 1983 |
Genre | : Aeronautics |
ISBN | : |
Download Scientific and Technical Aerospace Reports Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 1274 |
Release | : 1961 |
Genre | : Government publications |
ISBN | : |
Download Monthly Catalog of United States Government Publications Book in PDF, Epub and Kindle
Author | : |
Publisher | : |
Total Pages | : 818 |
Release | : 1954 |
Genre | : Aeronautics |
ISBN | : |
Download A Selected Listing of NASA Scientific and Technical Reports for ... Book in PDF, Epub and Kindle
Author | : United States. National Advisory Committee for Aeronautics |
Publisher | : |
Total Pages | : 306 |
Release | : 1956 |
Genre | : Aeronautics |
ISBN | : |
Download Index of NACA Technical Publications Book in PDF, Epub and Kindle