2,400kg flying on its head with ease? The BO105 masters this feat – and many more. It remains the only helicopter that is fully aerobatic. In 1963 MBB started considering construction of a helicopter in the two-ton class. The basic idea was fascinating: A revolutionary rotor system was to be developed – as the basis for a completely new helicopter concept.

In 1966 initial testing of the first hingeless rotor system began and proved promising. Innovative materials played a decisive role. For example, titanium was used for the rotor head and glass-reinforced plastic for the rotor blades. These blades have a virtually unlimited lifespan. Their enormously high elasticity made it possible to design a jointless rotor system that was easy to maintain, had a low vibration level, and guaranteed unsurpassed manoeuvrability.

As the first light helicopter in the world, the BO105 was also equipped with two engines, dual hydraulics, and a dual electrical supply. Innovations that make aerobatics conceivable. The BO105 is to this day the only helicopter that can perform true aerobatics, covering almost all the manoeuvres known from aeroplanes. The first flight took place in February 1967. The first helicopters were delivered to the Federal Armed Forces in 1978.

1,425 BO105 helicopters were manufactured by 1997. Production was finally stopped in 2001. Today, civil, paramilitary, and military BO105s fly in over 35 countries worldwide. It is particularly common in rescue operations and offshore operations. The two Flying Bulls’ BO105s rolled off the assembly line in 1974 and landed at the Flying Bulls after their job as police helicopters ended in 2005.

Facts & Figures

Aircraft registration D-HSDM / D-HTDM
Manufacturer Messerschmitt-Bölkow-Blohm GmbH (Airbus Helicopters)
Built in 1974
Factory number S 126 / S 140
Engine 2x Allison 250-C20B
Power 2x420hp
Cruising speed 220km/h / 120kts
Top speed 270km/h / 145kts
Service ceiling 5,182m / 17,000ft
Max. Flight time approx. 2hrs 30min
Tank capacity 570 litres
Fuel consumption approx. 200l/h
Length fuselage 8.6m / 28.2ft
Diameter rear rotor 1.9m / 6.2ft
Kerb weight 1,402kg / 3,090lbs
Max. Take-off weight 2,400kg / 5,290lbs
Seats 1 pilot / 4 passengers
Info First civilian helicopter approved for aerobatics

Flying and static display

For more information about the Flying Bulls and AIRPOWER stories, visit www.redbull.com/airpower and www.flyingbulls.at


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