Originally Posted by
Older and Wiser
... ...
Lets face it the only reason AW189 and S92 were chosen was for range/payload.
The DfT specification for
- Sloping ground limits,
- Altitude, met and load,
- Side and tail wind,
- Avionics and
- Operations in icing conditions
also narrow it down a bit.
What happens in the alps is nearly all about altitude.