Does the big airlines have a "Wet Footprint" period when flying over oceans or "wild area"?

Question

I mean, theoretically, they can have one, but then the alternate must be open and usable.

And if this footprint exists, how much if time is he at each point of the ETP (equal time point)? I would think not more than one hour?!

Answer 1

Dude, nobody is going to answer this until you explain what the h**l you are asking about.

Answer 2

I know what you're asking about and no, none of the airlines have a wet footprint.

Answer 3

For most trans-oceanic flights, an ETOPS-120 rating is required for twin-engined airliners.  As most points cannot be reached with a rating below that.  This means that at any point in the flight, an operational airport able to handle the particular aircraft must be reachable on one engine in 120 minutes.  This counts for flights over water or land.

Most modern twin-engined jets have ETOPS-180 by now anyway.  The B737, 767, 757, 777; the A300-600, 310, 320 and 330 are also rated to ETOPS-180.  This is a direct correlation of how reliable the engines of the airplane are.  Thus the newer aircraft have ratings of 120-180, while older (mostly piston) planes have 60 minute ratings.

Airliners with 3 or more engines are not subject to the FAA's ETOPS restrictions.

Just a note, with an ETOPS rating of 120, 95% of the globe is reachable, that's how many airfields there really are out there.