Michel wrote:I don't know enough about the ATR-72 to know the difference between a -500 and a -600, might spend some time on it now, your request made me curious
Michel,
A -600 is externally identical to a -500.
All the differences are internal - uprated engines, new all-glass instrumented flightdeck and improved cabin such as lighter seats (and more of them), more overhead locker room, etc.