Powerplants :: Helicopter Turboshaft Engines :: Model 250

Model 250

Total Production: 29,000
Also Known As: Allison 250, Model 250-C20, Model 250-C20R, Model 250-C20W (version powering the Fire Scout UAV), Model 250-C30, Model 250-C40, Model 250-C47, T63 (US Army original designation) and T703 (military designation for OH-58)

Origin: United States of America

Contractor/s: Rolls-Royce

Description: The Rolls-Royce/Allison Model 250 is a compact turboshaft engine designed to power both civil and military helicopters. Developing between 420 and 715 shat-horse-power and featuring a two-shaft modular design. It was originally developed as the T63 to meet the requirements of the US Army for a small turboshaft engine. Rolls-Royce has delivered nearly 30,000 Model 250 engines which have logged over 160 million flight hours. Currently, there are 16,000 Model 250 engines in service. Rolls-Royce has developed turboprop, generators and turbojet applications based on the Model 250 design.

Currently, the Model 250 is available in Series II and Series IV both equipped with FADEC (Full Authority Digital Engine Control) control. The Series II Model 250-C20 engine powers the Bell 206B, TH-67, MD-500, MD520N, AS355 and BO105 helicopters. The Model 250-C20R is an improved version featuring enhanced performance and economy. Series IV turboshafts (Model 250-C30/C40/C47) provide up to 715-shp and power the Bell 206L, Bell 407, Bell 430, MD530 and MD600N helicopters. The OH-58D, AH/MH-6, RQ-8 Fire Scout, Ka-226, PZL SW-4 and Groen Brothers Aviation Hawk 4T aircraft are powered by Model 250 engines.

Parent system is the Model 250
Total Production: 30,000
Other Family Members: Model 250-B17F

Transactions: There are 1 transactions involving 18 items for Model 250 in 2012 view report

Applications:

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:: Specifications ::

Fan Pressure Ratio: 9.20

Dimensions
Diameter: 21.9 inch (556 millimeter)
Length: 41 inch (1,041 millimeter)

Power
Max Output Power: 650 shp
Max Power at Cruise: 600 shp

Weight
Dry Weight: 274 pound (124 kilogram)

:: News ::

There are 10 news between
1 Mar 2007
and
16 Mar 2011

US Army MD 530F Selected for the Rotary Wing Primary Training Aircraft Program Rolls-Royce and Aeropower Sign Model 250 Engine Totalcare Agreement Rolls-Royce Awarded US Army Contract for new Model 250 Engine FADEC Rolls-Royce and Bell Helicopter Sign Model 250 Engine Agreement FMS: Iraq Requests 26 Bell 407 Helicopters along with Related Munitions FMS: Iraq Seeks 24 Armed Helicopters and Related Munitions Rolls-Royce and Bell Offer Upgrades for 206L1 Aircraft Rolls-Royce and CALSTAR Join to Upgrade BO105 Fleet Rolls-Royce, Air Evac Lifeteam Upgrade Medical Aircraft Rolls-Royce Joins with Heli-Lynx for AS355 Upgrades

:: Operators ::

Operators
	Country	Items	Country	Items
	Albania	?	Argentina	?
	Australia	?	Austria	?
	Bahrain	?	Bangladesh	?
	Bolivia	?	Brazil	?
	Brunei Darussalam	?	Burma	?
	Cameroon	?	Canada	?
	Chile	?	Colombia	?
	Costa Rica	?	Cote d'Ivoire	?
	Cyprus	?	Dominican Republic	?
	Ecuador	?	El Salvador	?
	Finland	?	France	?
	Germany	?	Greece	?
	Guatemala	?	Guyana	?
	Indonesia	?	Iraq	?
	Ireland	?	Israel	?
	Italy	?	Japan	?
	Jordan	?	Kenya	?
	Malaysia	?	Mauritania	?
	Mauritius	?	Mexico	?
	Netherlands	?	Nigeria	?
	Pakistan	?	Peru	?
	Philippines	?	Russia	?
	Saudi Arabia	?	Sierra Leone	?
	South Korea	?	Spain	?
	Sri Lanka	?	Sweden	?
	Switzerland	?	Taiwan	?
	Thailand	?	Trinidad and Tobago	?
	Turkey	?	United Arab Emirates	?
	United Kingdom	?	United States of America	?
	Venezuela	?

fully confirmed operational planned retired cancelled destroyed

:: Notes & Resources ::

Model 250 Model 250

Last Updated:
Saturday, February 2, 2013

(*) lead contractor

IOC: Initial Operating Capability
FOC: Full Operating Capability
CEP: Circular Error Probable
Comm: Commissioning Date
Meters (m) Kilometers (km) Nautic Miles (nm) Inch (in) Yard (yd) Foot (ft) Millimeter (mm)
Pound (lb) Kilogram (kg) kN (KiloNewton) Ton (t)
Meters per Second (mps) Kilometers per Hour (kph) Knot (kt) Miles per Hour (mph)
Liter (l) Galon (gl)
Year (yr) Minutes (min) Second (sec)
Shaft-Horse-Power (shp)

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