TM 333

The TM 333 powers the Dhruv, a twin-engine civil and military helicopter built by Hindustan Aeronautics Ltd. 300 TM 333 have been produced, logging more than 65,400 hours in flight.

Designed for 5 to 6-ton-class helicopters, the TM 333 was originally intended to power Eurocopter’s twin-engine Dauphin and Panther helicopters. Developed on the Panther, the TM 333 found its first commercial application on the Dhruv, the helicopter built by HAL (Hindustan Aeronautics Ltd) of India.

The TM 333 2B2 develops 825 kW (1100 shp) at takeoff, with growth potential to 900 kW (1,200 shp) for subsequent versions. The TM 333 2B2 is the sole production engine used on the Dhruv. Several hundreds engines have been ordered, with deliveries in progress. The Dhruv has been ordered by the Equador.

The TM 333 2M2, new variant of the TM 333 2B2, will power the Cheetal, the upgraded version of the Cheetah (Lama), and the Chetan, the upgraded version of the Chetak (Alouette III).

The first flight of the Cheetal passed off on February 1 2003, and the flight of the Chetan passed off on February 1 2005.

One variant powering one helicopter

2B2 2 HAL Dhruv
2M2 1 Chetan (Alouette III) - Cheetal (Lama)