‘When Performance Meets Affordability’

AS355With excellent handling, robustness and ease of maintenance, the AS355 NP incorporates twin-engine added reliability and performance—making it ideal for police and parapublic missions, as well as, demanding operations over water, rugged terrain and urban areas. Renowned for its low operation and maintenance costs, this helicopter benefits from the reliability and safety of its two Safran Arrius 1A1 engines and is equipped with a full authority digital engine control (FADEC) system.

AS355The AS355 NP is fully IFR certified and can be fitted with a 3-axis autopilot, along with mission-specific equipment for medical evacuation and law enforcement operations. The helicopter also offers excellent maneuverability, high speed and low vibration levels. An unobstructed cabin and forward-looking seats provides excellent visibility for all passengers and the AS355 NP’s very low vibration levels make it a perfect choice for corporate transportation. The flexible, reliable and economical AS355 is one of the most successful twin-engine helicopters in the world, with 760 AS355/AS555 delivered and over 3.5 million flight hours achieved.


Passenger transportation 1 pilot + 5 passengers (standard version)
1 pilot + 6 passengers (high density version)
Casualty evacuation 1 pilot + 1 stretcher + 2 medical attendants
Cargo 1 pilot + 3 m3 (105.9 ft3) in the cabin
Maximum take-off weight 2,600 kg / 5,732 lb
Maximum take-off weight with
external load
2.800 kg /  6,172 lb
Empty weight (standard configuration) 1,503 kg / 3,313 lb
Useful load (standard configuration) 1,097 kg / 2,419 lb
Maximum cargo-swing load 1,134 kg / 2,500 lb
Standard fuel capacity 577 kg / 1,272 lb
Power Plant 2 SAFRAN ARRIUS 1A1 engineS
Takeoff power 343 kW / 460 shp
Maximum emergency power
(OEI 2.5 minutes)
415 kW / 566 shp
Performance at Maximum Gross Weight at sea level, ISA and zero
wind condition
Maximum speed (Vne) 278 km/h / 150 kts
Fast cruise speed (at MCP) 246 km/hr / 133 kts
Recommended cruise speed 226 km/hr / 122 kts
Rate of climb at SL 8.5 m/sec / 1,675 ft/min
Service ceiling 4,600 m / 15,100 ft
Hover ceiling at takeoff power ISA-IGE 3,000 m / 9,850 ft
Maximum range without reserve at recommended cruise speed (RCS) 666 km / 360 NM
Endurance without reserve at 102 km/hr - 55 kts 4hrs, 35 min
Operation Limitations
Maximum altitude (PA) 6,100 m / 20,000 ft
Minimum temperature - 40°C / + 40°C
Maximum temperature ISA + 35°C / + 95°F, limited to + 50°C / + 122°F

The data set forth in this document is for informational purposes only and may vary with conditions. For performance data and operating limitations reference see approved flight manual and all related documentation.


‘Ahead of it time’

AS355 EngineAS355 VEMDThe AS355 NP is equipped with two powerful Safran Arrius 1A1 engines and a full authority digital engine control (FADEC) system that provides automated engine control and monitoring. With this state-of-the-art system, the pilot has no engine parameters to monitor during the automatic starting sequence, which thereby eliminates the risk of engine deterioration. In the event of engine failure during flight, the maximum emergency power is automatically and instantaneously provided to the operating engine, enabling the pilot to concentrate on the external environment while the FADEC takes control.

The AS355 NP provides excellent OEI performance: It is capable of taking off at MTOW in Cat A from a helipad at temperatures up to 25° C at sea level. The AS355 NP is also equipped with a Vehicle and Engine Multifunction Display (VEMD), which optimizes the human-machine interface and a standard avionics suite for day and night VFR operations that includes a GPS color map display and a redundant COM/NAV. The aircraft is fully IFR certified (single/dual pilot) and can be fitted with a 3-axis autopilot, as well as, mission-specific equipment.

Multi-Purpose Missions

AS355Equipped with state-of-the-art technology, the twin-engine AS355 NP can perform all type of missions including law enforcement and public services both day and night, whether over water, congested areas or
hostile environments.

The AS355 NP’s unobstructed cabin and forward-facing seats guarantee excellent visibility for passengers. As an option, footsteps and sliding doors can be installed to provide easy access to the wide cabin. The helicopter is equipped with an array of certified equipment to perform a wide range of operations with optimal efficiency, including:

  • Surveillance
  • Command and control
  • Light Search and Rescue
  • Border Patrol
  • Aerial Support for ground operations
  • Coastal surveillance

AS355The helicopter’s open cockpit concept and low vibration levels make it possible to install fully-integrated law enforcement instrument panels and tactical consoles. Installing optional equipment is also simple in order to effectively perform missions such as:

  • Harbor pilot transportation
  • Sling load operations
  • News gathering
  • Power line maintenance and repair
  • Bungee jumping
  • Radioactivity measurement

For EMS operations, the AS355 NP can carry one patient and two medical attendants in addition to a pilot and a considerable payload for the most demanding high and hot missions, over a distance of 713 km (385 NM) and at a cruising speed of 222 km/hr (120 kts).

AS355Its high-performance rotors make it easy to maneuver the helicopter, even in tight spaces and offer a high level of safety when flying above urban environments.

Just as the other helicopters in the Ecureuil family, the AS355 NP can be equipped with a large selection of medical kits and can be operated from elevated hospital helipads in congested areas.

When fitted with a VIP interior layout, the AS355 NP is an exceptional choice for efficient and comfortable
passenger transportation.

3D Model