SECTION I. EQUIPMENT DESCRIPTION AND DATA

TM 1-1520-238-T-4 4–2 SECTION I. EQUIPMENT DESCRIPTION AND DATA 4–1. EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES 4–1 a. Characteristics. The T700–GE–701 and T700–GE–701C engines consist of an accessory section module, a cold section module, a hot section module and a power turbine module. b. Capabilities and Features. The T700–GE–701 and T700–GE–701C engines provides power to the drive system. Helicopters with T700–GE–701C engines are equipped with a digital electronic control (DEC) which performs the same functions as the elctronic control unit (ECU) on the T700–GE–701. 4–2. LOCATION AND DESCRIPTION OF MAJOR COMPONENTS 4–2 a. Power Plants. The major components of the power plants (fig. 4–1) consist of two T700–GE–701 or T700–GE–701C front drive turboshaft engines and related subsystems. Engine 1 is on the left side of the helicopter and engine 2 is on the right. RIGHT ENGINE NACELLE (ENGINE 2) ENGINE EXHAUST LEFT ENGINE NACELLE (ENGINE 1) ENGINE INLET COWLING NOSE GEARBOX FAIRING M58-066 Figure 4–1. Power Plants Major Component Locations b. Related Subsystems. Related subsystems control the engines and provide cooling and engine exhaust. The subsystems include the following: · Engine Cooling Subsystem. Provides cool air for the engines. · Engine Anti–Ice Subsystem. Prevents icing of the engine air inlets and the nose gearboxes (NGB).