convertiplane


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con·vert·i·plane

also con·vert·a·plane  (kən-vûr′tə-plān′)
n.
An airplane having the ability to take off and land vertically, as by the use of large propellers that tilt upward to provide thrust.

convertiplane

(kənˈvɜːtəˌpleɪn) ,

convertaplane

or

convertoplane

n
(Aeronautics) an aircraft that can land and take off vertically by temporarily directing its propulsive thrust downwards

con•vert•i•plane

(kənˈvɜr təˌpleɪn)

n.
an aircraft capable of vertical flight like a helicopter and forward flight like a conventional airplane.
[1945–50]
Translations
References in periodicals archive ?
The XV-3 was one of three designs developed and tested under the US Army/Air Force Convertiplane Program, which aimed to achieve major improvements over simple helicopters in hover duration, cruise speed and range.
The vertical-lift aircraft, also known as a convertiplane, was introduced to the US military last September.
Nineteen US Marines died when a high-tech Osprey convertiplane crashed and burned as it landed at an airport near Tucson, Arizona.