The MBB BK.117 is a ten-seat multi-mission medium-weight class, twin-engine helicopter. Development of the
BK117 started in 1977 as a co production between MBB from Germany and Kawasaki Heavy Industries from Japan. The
first of four prototypes, two built by MBB in Donauwörth and two by Kawasaki in Gifu, flew in Germany on 13 June 1979.
The first prototype built in Japan flew on 10 August 1979. The first production aircraft (built by KHI in Japan)
flew in December 1981, and first deliveries took place early in 1983. Initial production was of the BK 117 A1, while the
BK 117 A3 with higher max takeoff weight and enlarged tail rotor with twisted blades was certificated in March 1985.
The BK 117 A4 with increased performance and improved tail rotor head was introduced in 1987. When the helicopter
divisions of MBB from Germany and Aerospatiale from France merged in January 1992 to form the Eurocopter
Group, the MBB BK.117 program was transferred as well. In 2002, the assembly line for the Eurocopter BK 117 C-1 twin
helicopter was transferred from its German production facility in Donauwörth to Trento in Italy. Eurocopter uses the
production facilities in Donauwörth for the EC 145 multi-role helicopter. This EC 145 flew first in 1999 and has been
jointly developed by Eurocopter and Kawasaki Heavy Industries of Japan. The EC 145 is designated the BK 117 C-2 in Japan.
Over 400 Eurocopter / Kawasaki BK 117 helicopters in different versions were built, including production under licence
by IPTN in Indonesia and Avionline in Italy.
As a result of the merger between the Eurocopter parents Aérospatiale-Matra; DaimlerChrysler Aerospace (DASA)
and Construcciones Aeronàuticas Sociedad Anonima (CASA) in July 2000, the Eurocopter group became a division of the new formed
EADS (European Aeronautic Defence and Space company). Taking off into 2014, EADS was rebranded as "Airbus Group". Uniting
all its activities under a single brand, its helicopter division Eurocopter was rebranded as Airbus Helicopters on 8 January 2014.
On 12 February 1992, permit to fly as D-HFIO was issued for the 1992-built MBB BK.117B-2 s/n 7250.
The helicopter was delivered to Polizei Baden-Württemberg and registered D-HBWG on 31 March 1993.
Polizei Baden-Württemberg at Karlsruhe/Baden-Baden (Söllingen) Airport used call sign "Bussard 7" for the D-HBWG. In
2001, the D-HBWG was transferred to ADAC Luftrettung GmbH and registered D-HBRB. RTH "Christoph 6" is stationed at the
ADAC-Luftrettungszentrum Bremen located at the Zentralkrankenhaus Links der Weser in Bremen, Germany. Call sign
"Christoph" is used for the German lifeliner helicopters since 1970 and is derived of Saint Christophorus,
the Patron Saint for all travellers. On 28 September 2015, CofA for export the MBB BK.117B-2 to New Zealand was given
and the same day registration D-HBRB was cancelled. However the CofA for export was given to New Zealand, the helicopter
was exported to South Africa and registered ZT-RMR on 3 December 2015. On 10 October 2008, RTH (Rettungstransporthubschrauber)
MBB BK.117B-2 D-HBRB "Christoph 6" was seen at Rotterdam The Hague Airport (RTM/EHRD), the Netherlands. The ICAO
Aircraft Type Designator for the Eurocopter BK.117B-2 is BK117.
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