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dc.contributor.authorLinvill, William K.en_US
dc.date.accessioned2009-06-03T17:36:39Z
dc.date.available2009-06-03T17:36:39Z
dc.date.issued1950-08-01en_US
dc.identifierMC665_r11_R-191.pdfen_US
dc.identifier.urihttp://hdl.handle.net/1721.3/39820
dc.description.abstractA schedule-following system for an airplane is a servomechanism. By use of conventional design techniques the system can be made to operate successfully up to the limits of the fixed part of the system, which is the airplane itself and the navigation system. For a Lockheed Constellation and an accurate (± 250 feet) navigation system, the speed control can have a bandwidth of about 0.4 cycle per minute and a speed range of about ± 15 percent of cruising speed, and the position can be controlled to within about ± 500 feet. Winds and navigation noise are the main corrupting disturbances on the system. By proper design of the control system, the effect of winds on ground speed can be diminished almost to extinction as long as the required air speed is within the range of the airplane engine. Navigation-system errors cannot be overcome by compensation. During initial approach, use of airbrakes to provide negative thrust and use of gravity to provide additional positive thrust can increase the incremental thrust range by a factor of four for a descent of 1 foot in 10.en_US
dc.language.isoenen_US
dc.publisherMIT Servomechanisms Laboratoryen_US
dc.relation.ispartofseriesMIT DIC 6673en_US
dc.relation.ispartofseriesProject Whirlwind Report R-191en_US
dc.relation.ispartofseriesProject Whirlwind Collection, MC665en_US
dc.titleStudy of a System for Following a Flight Progress Scheduleen_US
dc.typeTechnical Reporten_US


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