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MBB Bo 105
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The Messerschmitt-Bölkow-Blohm Bo 105 is a light, twin-engine, multi-purpose helicopter developed by Bölkow of Ottobrunn, West Germany. It was the first light twin-engine helicopter in the world, and the first rotorcraft that could perform aerobatic maneuvers such as inverted loops. The Bo 105 features a revolutionary hingeless rotor system, at that time a pioneering innovation in helicopters when it was introduced into service in 1970. Production of the Bo 105 began at the then-recently merged Messerschmitt-Bölkow-Blohm (MBB).
The main production facilities for producing the Bo 105 were located in Germany and Canada; due to the level of export sales encountered, additional manufacturing lines were set up in Spain, Indonesia, and the Philippines. MBB became a part of Eurocopter in 1991, who continued production of the type until 2001. The Bo 105 was formally replaced in Eurocopter's product range by the newer Eurocopter EC135, which was itself a development of the Bo 105.

General characteristics

  • Crew: 1 or 2 pilots
  • Capacity: 3 or 4 passengers
  • Length: 11.86 m (38 ft 11 in) (total length - including rotors)
  • Height: 3.00 m (9 ft 10 in)
  • Airfoil: NACA 23012
  • Empty weight: 1,276 kg (2,813 lb)
  • Max takeoff weight: 2,500 kg (5,512 lb)
  • Fuel capacity: 570 L (150 US gal; 130 imp gal)
  • Powerplant: 2 × Allison 250-C20B turboshaft engines, 310 kW (420 shp) each
  • Main rotor diameter: 9.84 m (32 ft 3 in)
  • Main rotor area: 76.05 m2 (818.6 sq ft)

Performance

  • Maximum speed: 242 km/h (150 mph, 131 kn)
  • Cruise speed: 204 km/h (127 mph, 110 kn) (best range cruise)
  • Never exceed speed: 270 km/h (170 mph, 150 kn)
  • Range: 657 km (408 mi, 355 nmi) at 1,525 m (5,000 ft) (standard fuel, maximum payload)
  • Ferry range: 1,112 km (691 mi, 600 nmi) at 1,525 m (5,000 ft) (with auxiliary tanks)
  • Endurance: 3 hr 30 min (standard fuel, maximum payload)
  • Service ceiling: 5,200 m (17,000 ft)
  • Rate of climb: 8.00 m/s (1,575 ft/min)

Photos credits: Spot'Air

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