1. ENGINE SYSTEM

2. Two Turbomeca TM-333-2B2 engines are installed
Two Turbomeca TM-333-2B2 engines are installed. The TM-333-2B2 engine is a FADEC
free turbine turbo shaft capable of developing up to 801kw (1073 SHP) at take-off rating. Salient features of the engine are detailed below:
Power output : 801 kw (1073 SHP) at take off, Sea Level, ISA conditions.
Weight : kg. (Dry engine with equipments

4. The Advanced Light Helicopter termed as “Dhruv” is a twin-engine,
multi-role helicopter of 5.5 tonne class, powered by TM 333-2B2 Turbomeca engines
Power from both engines is fed to the Main Gear Box (MGB) and transmitted to the main Rotor

7. Start-Up Page

14. Engine Automatic Control - FADEC System (Figure 7.3-5)
Each TM 333-2B2 engine is governed by a Full Authority Digital Electronic Control (FADEC) System. There is no ‘cross-talk’ between the left and right engines’ FADECs
(except for free-turbine over speed interlock).
The FADEC System for each engine consists of:
• Digital Electronics Control Unit (DECU), which monitors all ratings and power from STOP to maximum limited value.
The DECU box is fitted below the engine deck.
• Hydro mechanical system components installed on engine.
• Engine sensors.
• Helicopter interfaces.