Originally Posted by
Zio Nick
@Jet Ranger: I recently flew the Eurocopter 355 FX2 but I don't think it exceeds 2 tons...
No, Zio, you flew the Aerospatiale (AS)355!
For the EC225, take the 12 and add it to the 'cilivian 1'. This gives you 225.
For a Eurocopter military variant, add a 5 to the first digit of the model number. eg 635, 725 etc etc.