The Eurocopter EC-155 B1 is a medium-weight multi-role utility twin
engine helicopter accommodating up to 12 passengers and 2 crew. The EC
155 B is a development of the AS 365N Dauphin 2, 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 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. Deliveries of the EC 155B1 version began in September 2002.
By March 2006, more than 80 EC155s had been sold.
Eurocopter France used the test-registration F‑WWOY for the 2005-built Eurocopter EC155B1 s/n 6708.
The airframe was designated for Heli Air Monaco/Monacair for VIP transport of the royal family of Monaco.
On 19 August 2005, the EC155 B1 was registered as 3A‑MAG by Héli Air Monaco, Héliport de Monaco.
Prince Albert II of Monaco was present by the hand-over of the aircraft to Monacair on 8 September 2005.
The 3A‑MAG (Monaco Albert Grimaldi) was operated in a six-seater VIP configuration
and the design makes it possible to convert the helicopter into a twelve-seater passenger-carrying configuration.
In 2007, the 3A‑MAG was sold in the Netherlands and the EC 155 B1 was registered PH-EQU with Eques Asset BV,
Amsterdam on 30 May 2007. The PH‑EQU is fully offshore equipped and operated by Heli Holland Offshore out
of Amsterdam Heliport and Den Helder Airport. With little effort, the PH-EQU can be reconfigured into a VIP helicopter.