Aerospatiale AS355 ecureuil 2
Derived from AS350 Ecureuil
1979 · Twin-engine turbine helicopter
Factory at 
Marseille
The twin engine variant of the AS350 first flew September 27, 1979. The AS355 Twin Squirrel variants were marketed in North America as the TwinStar.
From 1992 produced by Eurocopter and from 2014 by Airbus. Production ended in 2016
Derivatives & Versions
| AS355E TwinStar | 1979 | Powered by 2 Allison 250-C20F turboshaft engines, uses single hydraulics |
| AS355F Ecureuil 2 | 1979 | Powered by 2 Allison 250-C20F turboshaft engines, uses dual hydraulics |
| HB355F2 Esquilo | 1982 | Assembled in Brazil by Helibras |
| AS355F1 Ecureuil 2 | 1984 | Powered by 2 Allison 250-C20F turboshaft engines, increased max weight by 100kg / 220lb |
| AS355F2 Ecureuil 2 | 1985 | Powered by 2 Allison 250-C20F turboshaft engines, increased max weight further 50kg / 110lb |
| AS555AN Fennec 2 | 1987 | French Air Force variant. |
| → AS355 Ecureuil 2 | 1992 | Twin engine variant of Ecureuil. |
Operators
| 1982- |  Royal Moroccan Gendarmerie |
| 1984- | Armée de l'Air |
| 1985- | Douane |
| 1985-2010 |  National Grid |
| 1987-2012 | Western Power Distribution |
| 1989-2019 |  New Zealand Police |
| 1993-2006 | Royal Air Force |
| 1997-2005 |  Kustwacht Nederland |
| 2005- |  Aviacion Naval Uruguaya |
 McDermott Aviation |
|
| UK Police Forces |