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Reproduction of the original: A Flight in Spring by J. Harris Knowles
Book Synopsis A Flight in Spring by : J. Harris Knowles
Download or read book A Flight in Spring written by J. Harris Knowles and published by BoD – Books on Demand. This book was released on 2020-07-18 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reproduction of the original: A Flight in Spring by J. Harris Knowles
Book Synopsis A Flight in Spring by : John Harris Knowles
Download or read book A Flight in Spring written by John Harris Knowles and published by . This book was released on 1898 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
A flight investigation has been conducted on a typical high-wing personal-owner airplane to determine the effect of control centering springs on apparent spiral stability. The centering springs were used in both the aileron and rudder control systems to provide both a positive centering action and a means of trimming the airplane.
Book Synopsis Flight Investigation of the Effect of Control Centering Springs on the Apparent Spiral Stability of a Personal-owner Airplane by : John P. Campbell
Download or read book Flight Investigation of the Effect of Control Centering Springs on the Apparent Spiral Stability of a Personal-owner Airplane written by John P. Campbell and published by . This book was released on 1951 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: A flight investigation has been conducted on a typical high-wing personal-owner airplane to determine the effect of control centering springs on apparent spiral stability. The centering springs were used in both the aileron and rudder control systems to provide both a positive centering action and a means of trimming the airplane.
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.
Book Synopsis A Flight Investigation of an Automatic Gust-Alleviation System in a Transport Airplane by : Paul A. Hunter
Download or read book A Flight Investigation of an Automatic Gust-Alleviation System in a Transport Airplane written by Paul A. Hunter and published by . This book was released on 1961 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Canadian Horticulturist and Beekeeper by :
Download or read book Canadian Horticulturist and Beekeeper written by and published by . This book was released on 1887 with total page 1058 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Official Gazette of the United States Patent Office by : USA Patent Office
Download or read book Official Gazette of the United States Patent Office written by USA Patent Office and published by . This book was released on 1911 with total page 2478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
"[...] Our stay in Thomasville was delightful. We found ourselves at home in the broad ample residence of our good host. The house is a large, one-story, double structure, standing in its own spacious grounds. A large hall, more than ninety feet long, runs through the midst of it. There we spent two days with our host, enjoying every moment of our stay. Flowers and roses were on every hand, and great trees with grateful shade, and the songs of many birds, and the pealing laughter of young folk, and the quiet happiness of those who loved to see others happy all about them.[...]".
Book Synopsis A Flight in Spring by : J. Harris J. Harris Knowles
Download or read book A Flight in Spring written by J. Harris J. Harris Knowles and published by CreateSpace. This book was released on 2015-03-13 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: "[...] Our stay in Thomasville was delightful. We found ourselves at home in the broad ample residence of our good host. The house is a large, one-story, double structure, standing in its own spacious grounds. A large hall, more than ninety feet long, runs through the midst of it. There we spent two days with our host, enjoying every moment of our stay. Flowers and roses were on every hand, and great trees with grateful shade, and the songs of many birds, and the pealing laughter of young folk, and the quiet happiness of those who loved to see others happy all about them.[...]".
Download or read book Flight written by and published by . This book was released on 1926 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:
The thermal performance of an air-heated propeller, installed on a test airplane, was evaluated by observations of the ice-prevention propertiesof the propeller during flight in natural-icing conditions and by the collection of thermal data on the propeller during flight in clear air and in clouds at temperatures above freezing. The test propeller was equipped with hollow steel blades of a standard design which were altered to permit heated air to enter the blade cavities at the propeller hub and to leave the cavities at the blade tips. No provisions were made to control the distribution of air flow inside the blades.
Book Synopsis A Flight Investigation of the Thermal Performance of an Air-heated Propeller by : John F. Darsow
Download or read book A Flight Investigation of the Thermal Performance of an Air-heated Propeller written by John F. Darsow and published by . This book was released on 1947 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thermal performance of an air-heated propeller, installed on a test airplane, was evaluated by observations of the ice-prevention propertiesof the propeller during flight in natural-icing conditions and by the collection of thermal data on the propeller during flight in clear air and in clouds at temperatures above freezing. The test propeller was equipped with hollow steel blades of a standard design which were altered to permit heated air to enter the blade cavities at the propeller hub and to leave the cavities at the blade tips. No provisions were made to control the distribution of air flow inside the blades.
In recent years, airline flight delays have been among the most vexing problems in the national transportation system. They reached unprecedented levels in 2000, when one flight in four was delayed. Although bad weather has historically been the main cause of delays, a growing reason has been the inability of the nations air transport system to efficiently absorb all of the aircraft trying to use limited airspace or trying to take off or land at busy airports. Recent events most notably the terrorist attacks on buildings in New York City and Washington, D.C., using hijacked airliners, and the economic slowdown that preceded these attacks have changed the extent of the delay problem, at least for the short term. With many airlines cutting their flights by 20 percent or more, the air transport system is having less difficulty absorbing the volume of flights. Whether the volume of flights will continue at these lowered levels is unknown. However, it is likely that a more robust economy and less public apprehension about flying will lead to renewed demands on the air transport system. If so, concerns about delays and the actions being taken to address them may once again command national attention.
Book Synopsis National Airspace System longterm capacity planning needed despite recent reduction in flight delays. by :
Download or read book National Airspace System longterm capacity planning needed despite recent reduction in flight delays. written by and published by DIANE Publishing. This book was released on 2001 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, airline flight delays have been among the most vexing problems in the national transportation system. They reached unprecedented levels in 2000, when one flight in four was delayed. Although bad weather has historically been the main cause of delays, a growing reason has been the inability of the nations air transport system to efficiently absorb all of the aircraft trying to use limited airspace or trying to take off or land at busy airports. Recent events most notably the terrorist attacks on buildings in New York City and Washington, D.C., using hijacked airliners, and the economic slowdown that preceded these attacks have changed the extent of the delay problem, at least for the short term. With many airlines cutting their flights by 20 percent or more, the air transport system is having less difficulty absorbing the volume of flights. Whether the volume of flights will continue at these lowered levels is unknown. However, it is likely that a more robust economy and less public apprehension about flying will lead to renewed demands on the air transport system. If so, concerns about delays and the actions being taken to address them may once again command national attention.
