The Allison Model 250, now the Rolls-Royce M250 and designated T63 or T703 in US military service, is a successful family of light turboshaft engines. In 1958 the Detroit Diesel Allison division of General Motors was chosen by the US Army to develop a small turbine for a Light Observation Aircraft, and the prototype YT63-A-3 was tested in April 1959. It first flew in a Bell 47 helicopter in 1961, and the Hughes OH-6 powered by the T63 was selected as the Army light observation helicopter in 1965. Its reverse-flow layout and modular construction ease maintenance. Nearly 30,000 have been built for helicopters, small aircraft and even a motorcycle, and Rolls-Royce has made it since buying Allison in 1995.
Facts
Classification
Fuel or Cycle Connections
Exemplifies
Source Allison Model 250 (Wikipedia)
Of Make
Source List of GM engines (Wikipedia)
In the Other Atlases
Manufactured By
Also in Business Atlas: the manufacturer of this subject.
Source List of GM engines (Wikipedia)Aircraft engines, TurboshaftQuote, Aircraft engines, Turboshaft
1960s–present Allison 250 (also produced by Rolls-Royce)
Sources
1. Allison Model 250 (Wikipedia)
Specifications, components
Fuel type: JP-4 aviation kerosene (alternatively JP-1 or JP-5)
Exemplifies: Aviation, Lead and applications
The Model 250 powers many helicopters, small aircraft, and a motorcycle
Part Of: Hughes OH-6 Cayuse, Applications
The Hughes OH-6 design, powered by the T63, was selected for the US Army Light Observation Helicopter (LOH) in May 1965.
View the SourceList of GM engines (Wikipedia)
Aircraft engines, TurboshaftQuote, Aircraft engines, Turboshaft
1960s-present Allison 250 (also produced by Rolls-Royce)
Reader Challenges (0)
No disputes yet. Spotted an error or a better source? Open the first one.
Sign in to dispute this or suggest a correction.