Ecureuil AS355 NP - Eurocopter is launching a brand new version of the twin-engine AS355 Ecureuil, which will be available for delivery from April 2007.

To add new impetus to its entry range of light, twin-engine helicopters, Eurocopter is upgrading the AS355 N Ecureuil. This new version, the AS355 NP, meets the requirements of a large number of customers throughout the world, for corporate transport or various utility missions. This upgrade integrates proven technology from the single-engine version of the aircraft, the AS350, and improvements to the twin-engine version.
The new electric oil cooling system for the engine and main gearbox (MGB) has been completely redesigned to ease maintenance, and is redundant to offer greater safety. The AS355 NP will be equipped with a Vehicle Engine Management Display (VEMD), which is already installed on the AS350, offering ease-of-use for missions under both Instrument Flight Rules (IFR) and Visual Flight Rules (VFR).

The new version will also have Arrius 1A1 engines, which increase the one engine inoperative power. The AS355 NP will be able to perform CAT A takeoffs at maximum weight at sea level, over a very wide range of temperatures. The integration of a new MGB , derived from the AS350 B3, transmits 500 KW of power, and increases the maximum take-off weight by 200 kg with the sling load to 2,800 kg. The AS355 NP will be available in the Stylence version for transporting at least four passengers with all the comfort required for corporate missions.
The aircraft’s modularity will also make it an excellent helicopter for aerial work thanks to the 20% increase in external payload. The improved One Engine Inoperative (OEI) performances have also significantly increased the payload (+ 120 kg at ISA, SL) with a single engine. This is a vital factor for customers operating in specific conditions where single-engine performance is required (harbor pilots, the French Electricity Board, etc.).

Finally, this new version aims to increase the Time Between Overhauls (TBO) for engines reaching maturity, directly influencing the operating and maintenance costs of an aircraft that is already the best value for money in its category.