EC135

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The Eurocopter EC135 (now Airbus Helicopters H135) is a twin-engine civil helicopter produced by Airbus Helicopters (formerly known as Eurocopter). It is capable of flight under instrument flight rules (IFR) and is outfitted with digital flight controls. It entered service in 1996; over a thousand aircraft have been produced to date. It is widely used by police and ambulance services and for executive transport; by 2013, more than 500 EC135s were providing helicopter emergency medical services across the world.

 The EC135 is a twin-engine rotorcraft. It can be alternatively powered by a pair of Turbomeca Arrius 2B or Pratt & Whitney Canada PW206B engines, dependent on customer's preference.The main rotor is of a four-bladed, hingeless fiber-composite design; progressive improvements to the main rotor have increased its performance and reduced maintenance costs since the type's introduction. The EC135 holds the distinction of being the quietest helicopter in its class, featuring an anti-resonance isolation system to dampen vibration from the main rotor. The type's fenestron anti-torque device can be actively regulated via a HI NR rotor optimization mode, which provides for greater controllability during higher weight take-off and landings. It is capable of performing Category A operations throughout its full flight envelope.
 

 In 2013, it was reported that the EC135 was currently providing roughly 25% of the world's total emergency medic services flights, and that over 500 EC135s have been delivered to in an emergency medical configuration. By late 2013, during which a brief grounding of the type was instigated due to safety concerns of fuel gauges, it was noted that the EC135 made up half of the UK's operational air ambulance fleet.In October 2014, the first EC135 air ambulance to be delivered in the Chinese market took place.

General characteristics

Ø  Crew: 1 pilot

Ø  Capacity: up to seven passengers or two crew and two patients (Air Ambulance variant) or 1,455 kg (3,208 lb) payload

Ø  Length: 10.2 m (33 ft 6 in)

Ø  Height: 3.51 m (11 ft 6 in)

Ø  Empty weight: 1,455 kg (3,208 lb)

Ø  Max takeoff weight: 2,910 kg (6,415 lb)

Ø  Powerplant: 2 × Turbomeca Arrius 2B2 turboshaft engines, 472 kW (633 hp) each
or 2 x Pratt & Whitney Canada PW206B turboshaft engines rated at 463 kW (621 hp) (take-off power)

Ø  Main rotor diameter: 10.2 m (33 ft 6 in)

Ø  Main rotor area: 81.7 m2 (879 sq ft)

Performance

Ø  Cruising speed: 254 km/h (158 mph; 137 kn)

Ø  Never exceed speed: 287 km/h (178 mph; 155 kn)

Ø  Range: 635 km (395 mi; 343 nmi)

Ø  Service ceiling: 6,096 m (20,000 ft)

Ø  Rate of climb: 7.62 m/s (1,500 ft/min)