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Eurocopter EC135

Eurocopter EC135

In the mid-1980s, when MBB (Messerschmitt-Bolkow-Blohm) began development of its BO 108, it had no idea how successfully the helicopter's form would let it perform many missions.

Initially, the BO 108 was intended as a flight test vehicle to investigate advanced systems. The flight test regime was designed to explore the technical and economic potential of advanced rotor technology, anti-resonance isolation systems, composite structures, cockpit installations and engine integration. Initially, the BO 108 was powered by a pair of Allison 250 C20-R engines.

Second BO 108, this one powered by a pair of Turbomeca TM319-1B Arrius engines, was introduced in 1991. At the time, the design featured a conventional tail rotor, but the BO 108 was soon fitted with a fenestron (a shrouded tail rotor) that had become a popular design feature on Aerospatiale's helicopters. The merging of MBB and Aerospatiale technology in the BO 108 was a result of major corporate shuffling that occurred when Germany's Daimler Chrysler Aerospace, which had acquired MBB, merged with Aerospatiale-Marta of France in 1992 to become Eurocopter, which in turn was a wholly owned subsidiary of EADS, the second largest aerospace and defense company in the world.

BO 108 The BO 108, an adored stepchild of the corporate marriage, was refined and renamed the EC135 and eventually would become the first helicopter of the merged aerospace giant. In 1994, a pair of preproduction prototypes, one powered by Arrius 2B engines and the other by Pratt & Whitney of Canada PW206B engines, entered the flight test program. The following January, in 1995, the EC135 was introduced at the Helicopter Association International annual convention in Las Vegas.

The flight test program amassed more than 1,600 flight hours before European JAA certification was granted in June of 1996, an impressive short 18 months after its maiden flight; FAA approval followed by the end of that July, and deliveries began immediately afterward. That same year the EC135 was honored with the Flight Aerospace Industry Award for the most innovative helicopter. Within a year of certification, Eurocopter had sold 100 EC135s, and by the time the 100th EC135 was delivered, to the Bavarian police force, the fleet had amassed some 30,000 flight hours.

Eurocopter EC135 Eurocopter EC135 interior

SPECIFICATION

Engine Type: 2 X Turbomeca Arrius 2B turboshafts

Horsepower: 634.00 Horsepower

Avionics: Avionique Nouvelle glass cockpit

Eurocopter EC135 illustration

Maximum Cruising Speed: 254.00 km per hr 157.84 mph

Service Ceiling: 3,048.00 metres 10,000.00 feets

Rate of Climb: 457.20 mpm 1,500.00 fpm

Cabin Height: 1.26 metres 4.13 feets

Cabin Width: 1.50 metres 4.92 feets

Cabin Length: 3.50 metres 11.48 feets

Exterior Length: 10.20 metres 33.46 feets

Wingspan / Rotor Diameter: 10.20 metres 33.46 feets

Fuselage Diameter: N/A N/A

Baggage Volume: 1.10 cubic metre 38.85 cubic feet

Maximum Take Off Weight: 2,910.00 kgs 6,415.39 lbs

Maximum Payload: 1,455.00 kgs 3,207.69 lbs

Fuel Tank Capacity: 175.16 gallon 663.00 litres

Fuel Economy: 0.94 km per litre 2.21 NM per gallon

Minimum Take Off Distance: N/A N/A

Minimum Landing Distance: N/A N/A

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