How many crews for 9 flight hour leg ?

[Bungfai]

If you leave your home base at mid night and flying for 9 to10 hours in a wide body two-man-crew aircraft without any rest facilities, you have to rest on passenger seat. How many flight crew do you use?

[Pilot Pete]

Depends on which part of the world you are in and under which Authority the airline operates. Generally speaking though, if you need inflight rest then you need another crew-member so that there will always be two at the controls.

PP

[foxmoth]

Under our FTL (UK rules) if you had only 2 crew you would be restricted to 9:30 FDP, i.e. an 8:15 flight. If however you have 3 crew you do not need to factor the FDP for sectors as with only 2 crew and could do an 11 hour FDP with nobody needing rest so can then operate a flight up to 9:45. If we need to use in flight relief it would still only be 3 crew and if a pax seat is used that seat must be seperated and screened from the flight deck and pax (we can then go to 15hrs FDP).

[Bungfai]

Thanks! And with 2 crew 9 hours night flight, can you rest on seat? Or both pilots have to stay awake the entire period?