autogiro

(redirected from autogyros)
Also found in: Dictionary, Thesaurus.
Related to autogyros: Gyrocopter, autogiro, gyroplanes

autogiro

(ôtōjī`rō) or

gyroplane

(jī`rəplān), type of aircraft supported in the air by a horizontally mounted airfoil similar to that of a helicopter but unpowered. Invented by the Spaniard Juan de la Cierva, it was first flown successfully in Jan., 1923, in Spain. Most of the lift is supplied by large airfoils which are mounted horizontally above the craft and rotated by the airflow created by the craft's forward movement. The autogiro has fixed wings that are smaller than those of an ordinary airplane; the body and tail assembly is of conventional design. Thrust is supplied by an ordinary engine and propeller, and control is maintained by a rudder, elevators, and ailerons. In one type, fixed wings are absent, and the rotor provides all the lift. Control of pitch and roll are accomplished by tilting the rotor forward, backward, or to either side. Some advantages of the machine are that its descent will be slowed by the turning of the rotor if the engine fails; that it becomes airborne with a very short takeoff run and can land in small areas; and that with a moderate headwind it can virtually hover with zero ground speed. However, it cannot match the vertical climbing performance of the helicopter.
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/

autogiro

[‚ȯd·ō′jī·rō]
(aerospace engineering)
A type of aircraft which utilizes a rotating wing (rotor) to provide lift and a conventional engine-propeller combination to propel the vehicle through the air.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

autogiro

, autogyro
a self-propelled aircraft supported in flight mainly by unpowered rotating horizontal blades
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
More than 20 years after the war ended, Wing Commander Ken Wallis, of Reymerston, Norfolk, became one of the world's most accomplished autogyro pilots.
He set a string of autogyro world records in the 1970s and was featured flying in the James Bond film You Only Live Twice .
He said: "Autogyros are a lot of fun to fly but in the past they have been seen difficult for less experienced pilots to handle.
"Most autogyros sold at the moment are for recreational use and my past customers include everyone from students to millionaires.
Researchers at the University of Glasgow, who worked with Jim on the four-year project, said the work had shed important new light on the design of autogyros.
"After a series of accidents involving autogyros we were asked to look at their behaviour during flight.
Autogyros are said to be cheap, simple to build and can take off within a distance of a few hundred feet.
Entrepreneur Jim Montgomerie, 54, will begin selling a kit version of his new autogyro for pounds 13,000 later this month.
Now after more than four years of research to improve the autogyro's stability, experts believe they have created an aircraft capable of making flying more accessible.
One aviation expert last night said autogyros were very rare because of their characteristics.
Villagers looked on as the tiny autogyro crashed at Coll on the Isle of Lewis.
Friends of the doctor said he had told Mr Macintosh that he was going up in the autogyro and would fly over his house.