Military Factory logo
Icon of F-15 Eagle military combat fighter aircraft
Icon of Abrams Main Battle Tank
Icon of navy warships
Icon of AK-47 assault rifle

Airbus Helicopters AS350 Ecureuil / Astar

Light Utility Helicopter

The AS350 system is a widely-used utilitarian type helicopter covering military, commercial and security needs.
Authored By: Staff Writer | Edited: 9/11/2018
National Flag Graphic


Year: 1975
Status: Active, In-Service
Manufacturer(s): Aerospatiale / Airbus Helicopters (Eurocopter) - France
Production: 3,000
Capabilities: Commercial Market; Reconnaissance (RECCE);
Crew: 1
Length: 139.27 ft (42.45 m)
Height: 10.63 ft (3.24 m)
Weight (Empty): 2,736 lb (1,241 kg)
Weight (MTOW): 5,666 lb (2,570 kg)
Power: 1 x Turbomeca Arriel 2B or 2B1 turboshaft engine developing 847 horsepower.
Speed: 178 mph (287 kph; 155 kts)
Ceiling: 16,549 feet (5,044 m; 3.13 miles)
Range: 408 miles (657 km; 355 nm)
Rate-of-Climb: 1,959 ft/min (597 m/min)
Operators: Albania; Algeria; Australia; Benin; Botswana; Brazil; Burkina Faso; Burundi; Cambodia; Canada; Central African Republic; Chile; China; Comoros; Denmark; Djibouti; Ecuador; France; Gabon; Guinea; Israel; Jamaica; Malawi; Malaysia; Mali; Mauritius; Mexico; Morocco; Nepal; Paraguay; Peru; Rwanda; Singapore; Trinidad and Tobago; Tunisia; United Arab Emirates; United Kingdom; Uruguay; Venezuela; Austria; Bosnia and Herzegovina; Ireland, Netherlands; New Zealand; Norway; Philippines; South Africa; United States; Bhutan; Finland; Germany; Greenland; Hungary; Iran; Iceland; Nepal; Puerto Rico
The AS350 was originally designed to replace the aging Sud Aviation / Aerospatiale Alouette II light utility helicopter series. The AS350 appeared first under the Aerospatiale brand label but is now known under the Eurocopter name. First flight was achieved on June 26th, 1974 with introduction of the system taking place in 1975. The helicopter has been in production ever since and has become a fixture in the inventories of dozens of nations around the world.

The AS350 maintains an impressive streamlined appearance. The pilot and (optional) co-pilot are seated in the forward portion of the fuselage with excellent visibility forward, below, above and to the sides. Entry is via a hinged automobile-style door. The passenger cabin - with room for six - offers hinged doors to either side of the fuselage with large windows. The Turbomeca powerplant sits atop and to the rear of the passenger cabin with exhaust jettisoned out through a cylindrical system aft. The rotor mast fits the main rotor high away from the fuselage and is made up of a three-bladed main rotor system. The empennage, adding to the AS350's distinct look, is long and slender and sports horizontal planes at about midway. The tail section is made up of a dorsal vertical tail fin with a shorter ventral fin below. The tail rotor sits to the starboard side of the aircraft. The undercarriage features a fixed skid arrangement.

Military operators of the AS350 series include Australia, Brazil (Brazil has built single- and twin-engined versions locally under license by Helibras), Chile, Ecuador, Vietnam and the United Kingdom among others. The AS350 fits equally well within the realm of security operations and is used as such by police forces in Austria, Botswana, Brazil, Canada, South Africa and the United States - US police forces being a quantitative user of note. The AS350 has also found a home in the civilian markets of the world and operates in this capacity for Austria, Chile, Finland, Hungary, Iran, Iceland, Italy, New Zealand and Sweden among others (see variants list for full report). Air tours across Hawaii make heavy use of the AS350 series in their scenic flights over the various islands.

The AS350 has since been branched out into a twin engine known as the AS355 Ecureuil 2 and the single-engine EC130 Ecureuil while the AS350 is marketed in North America as the Astar.

Israel's Elbit Systems has ordered four H125s to modify for Israeli Police service. Introduction is expected for 2016.


Usually none but can be mission-specific as needed and based on operator.

Variants / Models

• AS350 - Prototype Model Designation
• AS350 "Firefighter" - Fire Fighter Variant
• AS350 B - Fitted with 1 x Turbomeca Arriel 1B engine.
• AS350 B1 - Fitted with 1 x Turbomeca Arriel 1D engine.
• AS350 B2 - Fitted with 1 x Turbomeca Arriel 1D1 engine; increased overall weight.
• AS350 B3 - Fitted with 1 x Turbomeca Arriel 2B digitally-controlled engine.
• AS350 B3/2B1 - Increased MTOW; dual hydraulic arrangement.
• AS350 BA - Fitted with 1 x Turbomeca Arriel 1B engine; redesigned main rotor blades.
• AS350 BB - Fitted with Turbomeca Arriel 1D1 series engine; selected by British Ministry of Defense.
• AS 350 C "A-Star" - Fitted with Lycoming LTS-101-600A2 engine primarily for North American markets.
• AS 350 D "A-Star" / "A-Star Mark III" - Fitted with Lycoming LTS-101 series engine; primarily for North American markets.
• AS350 L1 - Militarized AS350 B1; fitted with Turbomeca Arriel 1D turboshaft engine of 684shp.
• AS350 L2 - Militarized AS350 B2; fitted with Turbomeca Arriel 1D1 turboshaft engine of 732shp.
• HB350 B "Esquilo" - Militarized variant for use by Brazilian Air Force; sans armament.
• HB350 B1 "Esquilo" - Militarized Variant for use by Brazilian Navy.
• HB350 L1 - Militarized Variant for use by the Brazilian Army.
• CH-50 - Brazilian Designation for HB350 B "Esquilo" model; production by Helibras.
• TH-50 - Brazilian Designation for HB350 B "Esquilo" model; production by Helibras.
• UH-12 - Brazilian Designation for HB350 B1 "Esquilo" model; production by Helibras.
• HA-1 - Brazilian Designation for HB350 L1 model; production by Helibras.
• Eurocopter Squirrel HT.1 - RAF Designation of AS 350 BB; trainer variant.
• Eurocopter Squirrel HT.2 - British Army Air Corps trainer based on the AS 350 BB
• AS355 - Prototype Model Designation of twin-engine version.
• AS355 E - Production Model Designation; fitted with 2 x Allison 250 turboshaft engines; designated as "Twin Star" in North American market.
• AS355 F - "Improved" AS355; new main rotor blades.
• AS355 F1 - Fitted with Allison C20F engines; increased MTOW.
• AS355 F2 - Fitted with Allison C20F engines and new transmission system; increased MTOW.
• AS355 M - Militarized Variant of the AS355 F1 model.
• AS355 M2 - Militarized Variant of the AS355 F2 model.
• AS355 N "Ecureuil 2" - Fitted with 2 x Turbomeca Arrius 1A series digitally-controlled engines; designated "TwinStar" in North American market.
• As355 NP "Ecureuil 2" - Fitted with 2 x Turbomeca Arrius 1A1 turboshaft engines and new gearbox; increased MTOW.
• HB.355F "Ecureuil 2" - License-production Brazilian models under Helibras brand.
• HB.355N "Ecureuil 2" - License-production Brazilian models under Helibras brand.
• Soloy Super D = AS350 BA model fitted with LTS101-600A-3A engine.
• Soloy Super D2 - AS350 B2 model fitted with LTS101-700D-2 engine.
• Heli-Lynx 350FX1 - AS350 BA model powered by LTS101-600A-3A engine.
• Heli-Lynx 350FX2 - AS350 BA or AS350 B2 models powered by LTS101-700D-2 engine.
• Otech AS350BA+ - AS350 BA model powered by LTS101-600A-3A engine.
• Heli-Lynx 355FX1 - Fitted with Allison C20F engine.
• Heli-Lynx 355FX2 - Fitted with Allison C20F engine.
• Heli-Lynx 355FX2R - Fitted with Allison C20R engine.
• Starflex AS355F1R - AS355 F1 model fitted with Allison C20R engine.
• Starflex AS355F2R - AS355 F2 model fitted with Allison C20R engine; new tail rotor blades.
• H125
Site Disclaimer  |  Privacy Policy  |  Cookies  |  Site Map Site content ©2003-, All Rights Reserved.

The "Military Factory" name and logo are registered ® U.S. trademarks protected by all applicable domestic and international intellectual property laws. All written content, illustrations, and photography are unique to this website (unless where indicated) and not for reuse/reproduction in any form. Material presented throughout this website is for historical and entertainment value only and should not to be construed as usable for hardware restoration, maintenance, or general operation. We do not sell any of the items showcased on this site. Please direct all other inquiries to militaryfactory AT

Part of a network of sites that includes, GlobalFirepower, a data-driven property used in ranking the top military powers of the world, and, the World Directory of Modern Military Aircraft.

Facebook Logo YouTube Logo