Slide down tactical windows

These windows facilitate interior pintle mounted machine guns that do not obstruct the side cabin doors.

Cabin

Large, spacious, unobstructed, constant cross section cabin with a square floor plan that is fully accessible and usable, and offers maximum mission flexibility and seating for up to 15 people. Both sides of the cabin can be accessed through the large sliding cabin doors with high clearance from main and tail rotors. This also permits quick and easy loading/unloading of personnel, equipment, litters or supplies directly onto the cabin floor, even with a forklift. A rear cabin area compartment is open to the main cabin, and is accessible in flight, or can easily be accessed on the ground through doors on either side of the aft fuselage.

Rotor System & Drive Train

Main Rotor System Design – The main rotor is a five blade, completely articulated fail-safe system designed for improved auto-rotational performance, lower noise, and lightning strike damage tolerance

Gearbox -- 60-minute “run dry” capable main gearbox. All gearboxes designed for very high time between overhauls (TBO). Main 6000 hrs, tail and intermediate 7500 hrs.

High main and tail rotor ground clearance ensures a safe environment for ground operations and maintenance personnel.

Reduced IR Signature Engine

Two powerful, low maintenance, environmentally friendly, legendarily reliable, Pratt & Whitney PT6C–67C engines with a full digital electronic engine control (FADEC), producing 1679 Shp each at takeoff.

Engines are mounted in separate engine turbine burst containment compartments and have independent inputs to the main gearbox. Side facing engine air intakes greatly reduce bird or flying object ingestion. IR Signature is lowered with airflow and a directional exhaust which also reduces plume impingement on the tail fuselage.

Rear Cabin Area

The AW139 layout provides an easily accessible, spacious, rear cabin area (120 cubic feet, 38.7 square feet of floor area) that is accessible from the main cabin and through two aft cargo doors on either side of the aircraft. This area can be used for mission equipment, litters or cargo.