Quote:
Originally Posted by WVOtoGO
ETOPS -
It's a time and distance thing. Not a water thing.
It's not all about the engines either.
And then there's crew certification... |
Right, time/distance...to a suitable landing site. I maintain that the driving force is over water ops because it just so happens that there are more suitable landing sites on land than in the middle of the Pacific.
FWIW, see attached great circle mapper with 60 and 120 min ETOPS on rte to SYD from LGA via SFO...light blue is 60min...all of the continental US is within 60min B757 ETOPS. Not so for mid-ocean.
Quote:
Originally Posted by WVOtoGO
Odd as this may sound - I have flown Boeing 757s that were ETOPS certified and some that were not. Both with the same RB211 engines.
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That answers why I've seen similar a/c at terminals, some with ETOPS on the nose gear door, some without.