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Rolls-Royce RTM322
Turbomeca RTM322

Model of an RTM322


The Rolls-Royce Turbomeca RTM322 is a turboshaft engine produced by Rolls-Royce Turbomeca Limited, a joint venture between Rolls-Royce plc and Turbomeca. The engine was designed to suit a wide range of military and commercial helicopter designs. The RTM322 can also be employed in maritime and industrial applications.

The first order for the RTM322 was received in 1992 to power 44 Royal Navy Merlin HM1s which subsequently entered service in 1998. According to Rolls-Royce 1,500 engines are made or ordered, and about 80% of AW101's use the engine.


AgustaWestland Apache
AgustaWestland AW101
NHIndustries NH90


Mk 250 or 02/8 variant
Type: Turboshaft
Length: 46.1 in (1.17 m)
Diameter: 25.5 in (0.65 m)
Dry weight: 503 lb (228 kg)
Compressor: 3HP + 1CFHP
Turbine: 2HP, 2PT
Maximum power output: 2,270 shp (1,693 kW)
Overall pressure ratio: 14.2







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