Vertipedia - Airbus Helicopters AS355 NP Écureuil 2

Overview

Data on design, manufacture and status

Design authority: Société Nationale Industrielle Aérospatiale

Primary manufacturer: Airbus Helicopters

Parent type: Airbus Helicopters AS355

Aircraft status: Operational

Configuration

Primary flight and mechanical characteristics

VTOL type: Helicopter

Lift devices: 1 Single main rotor

Dedicated control device: 1 Tail rotor

Crew required: 1 in Side-by-side arrangement

Landing gear: Skids

Key Characteristics

Data on key physical features

Aircraft Details

Data on aircraft configuration, weights, flight performance and equipment

Layout and Dimensions

Weights and Performance

Engine Details

Primary Lift Device

Primary Control Device

Overall Dimensions
Overall Height:	3.14 m	10.3 ft
Overall Length:	12.94 m	42.5 ft
Overall Width:	10.69 m	35.1 ft

Airframe Dimensions
Airframe Length:	10.93 m	35.9 ft
Airframe Width:	3.05 m	10.0 ft
Airframe Height:	3.02 m	9.9 ft

Landing Gear Dimensions
Landing Gear Base:
Landing Gear Track:	2.17 m	7.1 ft

Cabin Dimensions
Cabin Internal Height:
Cabin Internal Length:
Cabin Internal Width:

In addition to stated conditions, manufacturer states that performance data is at maximum gross weight and zero wind condition.

Weights
Max Gross Weight (ground):	2,600 kg	5,732 lb
Max Gross Weight (airborne):	2,800 kg	6,172 lb
Max Take-off Weight:	2,800 kg	6,172 lb
Empty Weight:	1,490 kg	3,285 lb

Climb Performance
Max Rate of Climb:	7 m/s	1,296 fpm

Hover Performance
Hover Ceiling IGE:	2,576 m	8,450 ft
Hover Ceiling OGE:	2,158 m	7,080 ft

Limitations
Max Level Flight Speed:	222 km/h	120 kts
Never Exceed Speed:	278 km/h	150 kts
Service Ceiling:	4,050 m	13,287 ft

Range and Endurance
Max Range:	731 km	395 nm
Max Endurance:	5 hrs

Provided powerplant data is for uninstalled, sea level, static operations.

Powerplant
Number of engines:	2
Designation:	Turbomeca Arrius 1A1 turbine
Manufacturer:	Turbomeca

Normal Ratings
Max continuous:	305 kW	409 hp
Take-off / rated:	343 kW	460 hp
Intermediate:	386 kW	517 hp
Maximum:

OEI Ratings
OEI contingency:	415 kW	556 hp
OEI continuous:	386 kW	517 hp
OEI 30-second:
OEI intermediate:	386 kW	517 hp

Main Rotor Characteristics
Diameter:	10.69 m	35.07 ft
RPM:
Direction of Rotation:	Clockwise
Hub Type:	fully articulated (elastomeric bearing) rotor type

Main Rotor Blade Characteristics
Blade Construction:	composite
Blade Chord:
Blade Tip Geometry:	Square-edged tips
Blade Twist:
Number of Blades:	3

Main Rotor Derived Characteristics
Disc Area:	89.75 m²	966.1 ft²
Disc Loading:	28.97 kg/m²	5.933 lb/ft²
Solidity:

Main Rotor Blade Derived Characteristics
Blade area per blade:
Tip Speed:

Tail Rotor Characteristics
Diameter:	1.86 m	6.10 ft
Configuration:	Unknown
Direction of Rotation:	Unknown
RPM:

Tail Rotor Blade Characteristics
Number of Blades:	1
Blade Construction:
Blade Chord:
Blade Twist:

Tail Rotor Derived Characteristics
Disc Area:	2.72 m²	29.2 ft²
Solidity:

Tail Rotor Blade Derived Characteristics
Tip Speed:
Blade Area (per blade):

References

References and sources used

AS355 NP Brochure

Eurocopter
2012
Website

AS355 NP Specifications

Airbus Helicopters
2014
Website
Weight and performance specifications are at aircraft maximum gross weight, according to the manufacturer.

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Images

Overview

Attribution

Main rotor

Attribution

Main Rotor Diameter:	10.69 m	35.07 ft
Max Gross Weight (ground):	2,600 kg	5,732 lb

Number of engines:	2 Turbines
Max Level Flight Speed:	222 km/h	120 kts
Max Range:	731 km	395 nm
Max Endurance:	5 hrs	5 hrs