The AW101 medium-lift helicopter is manufactured by AgustaWestland International (formerly EH Industries), a joint venture company formed by Agusta of Italy and UK company GKN Westland. The EH101 helicopter program has been developed for both civil and military applications.
AW101 commercial utility:
The AW101 commercial utility variant can fulfil a number of roles - search and rescue (SAR), air ambulance, firefighting, police and security operations, disaster relief, offshore operations, cargo / transport and commuter services.
As air ambulance, the cabin has room for a medical team and 16 stretchers. For SAR there is room to accommodate at least 20 survivors and for disaster relief as many as 55 evacuees.
A version of the EH101 medium-lift helicopter is on offer for the US military market.
The utility helicopter has a rear ramp and can carry rappelling kit, underslung load provision, search light, rescue hoist and stretchers. The heavy duty cabin floor and ramp are equipped with flush tie-down points, a roller conveyer for palleted freight and a cargo winch for non self-loading freight.
The rugged modular structure incorporates crashworthy and damage-tolerant features, including a five-blade main rotor, four-blade teetering rotor and main lift frame which includes multiple primary and secondary load paths.
The fuselage is mainly of aluminium-lithium construction. The aerodynamic rotor blades are constructed from carbon / glass with nomex honeycomb and rohacell foam. Active vibration control of the structural response (ACSR) uses a vibration cancelling technique.
The helicopter operates in temperatures ranging from -40°C to +50°C. An ice protection system allows operation in known icing conditions. An engine inlet particle separator system provides protection in sandy environments. High flotation tyres and efficient landing gear permit operation from soft or rough terrain.
Original Aircraft - Design: AgustaWestland International Aircraft Corporation
Original Aircraft Data: Agusta Westland EH101 (AW101)
Length, Rotors Turning: 22.8 m (74.8ft)
Height Overall: 6.65 m (21.75ft)
Length Fuselage: 19.63 m (64.4ft)
Width, Overall: 5.67 m (18.6ft)
Main Rotor Diameter: 18.6 m (61ft)
Tail Rotor Diameter: 4 m (13.11ft)
Number of Blades (Main / Tail): 5/4
Length: 6.5 (m)
Maximum Width: 2.5 (m)
Width at Floor: 2.25 (m)
Height: 1.8 (m)
Volume: 31.5 (m³)
Maximum Gross Take-Off Weight (Internal / External Load): 14,600 kg (32,188lb)
Basic Empty Weight: 8,600 kg (18,960lb)
Maximum Useful Load: 6,000 kg (13,228lb)
Sling Load: 4,536 kg (10,000lb)
Type: 3 x GE CT7-T6A
Take-Off, Rating: 3 x 1491 kW (3 x 2,000shp)
Maximum Continuous, Rating: 3 x 1283 kW (3 x 1,720shp)
Maximum Speed: 280 km/h (150kt)
Rate of Climb: 10.16 m/s (2,000ft/min)
Hovering IGE: 2,316 m (7,600ft)
Hovering OGE: 1,067 m (3,500ft)
Service Ceiling: 4,575 m (15,000ft)
Maximum Range (Internal Fuel Tank): Over 1,389 km (750nm)
Maximum Endurance (Internal Fuel Tank): 6 hours