The Airbus Helicopters EC155 B is a medium-weight multi-role utility twin
engine helicopter accommodating up to 12 passengers and 2 crew. The EC155 B is a development of the
AS365N Dauphin II, with 40% larger cabin
area, a new five-bladed Spheriflex main rotor with an extremely low
vibration level and 'glass cockpit'. The EC155 B1 is powered by a pair
of Turbomeca Arrius 2C2 turbine engines. The new generation of Fenestron
tail rotor takes part in the decrease in external noise level. This tail
rotor has 10 blades spaced irregularly around the hub. Development
of the EC-155, initially known as AS-365N-4 Dauphin started
in September 1996. The development of the AS365 N4 wide body helicopter
was announced at International Paris Airshow in June 1997. A mockup of
the AS365 N4 was shown at the International Paris Air Show at Le Bourget and on 17 June 1997,
the prototype EC155, F-WDFK, a rebuilt Dauphin, flew first at Marignane. The first pre-poduction EC155
B flew on 11 March 1998. The French Civil Aviation Authority (DGAC) and
the German Government Agencies (LBA) certification was awarded in December
1998 and the EC 155 got its single-pilot IFR certificate on 25 January 2000.
The first three Eurocopter EC 155 Bs were officially handed over to the German
Federal Ministry of the Interior / Bundesgrenzschutz (BGS) at the Bonn-Hangelaar
base of the BGS on 16 March 1999. The EC155 B1 is a development
of the EC155 B with more powerful engines and improved performance at high altitude
and in hot temperature conditions. More than 170 EC155s have been sold. The ICAO Aircraft
Type Designator for the EC155 helicopters is EC55. Since March 2015, Airbus Helicopters
uses “H155” as marketing designation for EC155 helicopters.
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 8 December 2004, the Eurocopter EC155 B1 s/n 6683 flew first with
Eurocopter France test-registration F-WWOF. On 8 March 2005, the 2004-built EC155 B1
Dauphin II was registered 4K-AZ45 in Azerbaijan with Silk Way Helicopter
Services, Baku, Azerbaijan. SWHS - Silk Way Helicopter Services is part of the Silk Way Holding and
based at the Baku - Heydar Aliyev Airport. After the Eurocopter EC155 B1 4K-AZ45 was sold to Heli Holland
it was flown out of Baku to Emmer-Compascuum, the Netherlands, for maintenance by Heli Holland Technics.
On 19 December 2013, Eurocopter EC155 B1 4K-AZ45 landed at the Heli Holland heliport near Emmen after the delivery flight out of Azerbaijan.
On 20 December 2013, the helicopter was registered PH-HHO in the Netherlands, with Heli Holland Aviation Service B.V., Emmer-Compascuum,
as holder. On 28 April 2016, NHC - Northern Helicopter, Emden, reserved registration D-HNHN in Germany for the helicopter, but registration D-HNHN was ntu.
On 25 November 2016, registration PH-HHO was cancelled and on 29 November 2016, the helicopter was registered D-HNHB in Germany with NHC - Northern Helicopter, Emden.