Eurocopter EC 225 Super Puma Mark II Multirole and Offshore Support Helicopter, Europe

Eurocopter announced the EC 225 civil multirole and offshore support helicopter in June 1998. The EC 225 is part of the Super Puma and Cougar Mark II family of helicopters and is capable of carrying two crew and 25 passengers.

The helicopter completed its first flight in November 2000 and received JAR-29 certification from the European Aviation Safety Agency in July 2004.

The helicopter is crewed by a single pilot for Direction General a l'Aviation Civile (DGAC) Category B civil operations and by two pilots under Instrument Flight Rules (IFR) operations.

The helicopter received US Federal Aviation Authority (FAA) certification in January 2008.

The fast cruise speed is 278km/h. With maximum take-off weight and using optional fuel tanks the helicopter's range is 987km.

The military version of the EC 225 is the EC 725, which entered service with the French Air Force in 2005.

In September 2005, the EC 225 received certification for unrestricted operation in icy conditions.

DELIVERIES AND ORDERS

The first series production EC 225 was delivered to the Ministerial Air Liaisons Group (GLAM) of the Algerian Republic in December 2004, for VIP transport.

Orders have been placed for more than 60 EC 225 / EC 725 helicopters including: Bristow Helicopters Ltd (six delivered and eight ordered in March 2007), CHC Helicopter Corporation (22 ordered, deliveries begin 2007), Japan Defence Agency (three ordered in March 2005), Japanese Coast Guard (two ordered in December 2005 and delivered in April 2008), Chinese Ministry of Communications (two ordered in May 2006, delivered December 2007), Citic Offshore Helicopter (two ordered in July 2006) and Bond offshore Helicopters (two ordered in August 2006).

From July to September 2007, a French Air Force EC725, with its military systems removed and thus in EC225 configuration, was evaluated in Corsica for fire-fighting capabilities. It was fitted with flexible 4,000l water tank attached to the cabin floor plus a scoop and water jettison kit. The firefighting kit can be assembled and dismantled in under 20 minutes. The system is planned for certification in 2008.

EUROCOPTER EC 225 DESIGN

The helicopter is a five-bladed version of the AS332L2 with a new LCD glass cockpit, more powerful engine, reinforced main gearbox and 25% higher load carrying capability.

The helicopter is robustly built on a high-strength light alloy and titanium airframe and marinised for paramilitary, rescue and offshore oil industry operation.

The five-bladed parabolic tipped main rotors are 16.2m in diameter and of high strength composite construction. A full rotor de-icing system is fitted as an option. The Spheriflex rotors have elastomeric spherical bearings. The tail rotor head also uses Spheriflex technology.

The helicopter is fitted with large sponsons which can carry auxiliary fuel, an air conditioning system, pop-out floats and life rafts.

EC 225 COCKPIT

The two-seat cockpit is equipped with the integrated advanced helicopter cockpit and avionics system which includes an Automatic Flight Control System (AFCS) with a four-axis digital APM 2000 autopilot, a flight data system, Vehicle Management System (VMS) monitoring the aircraft parameters and a Honeywell Ground Proximity Warning System (GPWS). There is also an Integrated Standby Instrument (ISI) for airspeed, altimeter and gyro-horizon back-up display.

There are four multi-function 6in x 8in flight displays and two 4in x 5in displays for the VMS, based on Active Matrix Liquid Crystal Display (AMLCD) technology and a 3in display for the ISI.

ADAPTABLE CABIN

The large cabin is air-conditioned and seats up to 25 passengers. The 20m³ cabin space can be arranged in a number of mission configurations. The cabin can be laid out in a business-class airline arrangement or luxuriously furnished for VIP transportation.

For casualty evacuation the helicopter has the capacity to carry 12 stretcher patients, six seated casualties and a team of attendants.

A rescue winch and a sling are provided. The maximum flight weight of the helicopter with a slung load is 11,200kg.

EUROCOPTER EC 225 ENGINES

The helicopters are powered by two Turbomeca Makila 2A engines mounted above the main cabin and equipped with dual channel duplex Full Authority Digital Engine Control (FADEC). Each engine provides 1,566kW of take-off power, representing an increase of 15% power compared to the Makila 1A2 fitted on earlier versions of the AS332 Super Puma.

The engines are fitted with intake grills and Centricep intakes to protect the engine against the ingestion of debris and dust. The gearbox has been reinforced to accommodate the extra power.

The self-sealing fuel tanks are installed under the cabin floor and auxiliary tanks can be fitted in the cargo hook well, in the sponsons and in the cabin.

LANDING GEAR

The Messier Bugatti tricycle-type landing gear is of a high energy absorbing design. The units retract rearwards and are equipped with oleo-pneumatic shock absorbers and hydraulically operated differential disk brakes.