User manual
Table Of Contents
PFPX - Professional Flight Planner X
Aerosoft GmbH 2013
76 77
• Thereafter, to fly for 45 minutes at normal cruising fuel con-
sumption (holding fuel).
Extended range operations (ETOPS) are not applicable to flights
under 14 CFR 121 Domestic rules because of their restriction to
flights within the 48 coterminous United States.
US FLAG operations
US Flag operations which is used for scheduled international flight op-
erations by an operator registered in the United States Under US Flag
operations (14 FAR 121.645), a flight is required to carry fuel that will
enable the aircraft:
• Safe flight from the departure airport to the planned destination
air-port (burn-off fuel)
• Thereafter, to fly for a period of 10% of the total time required
to fly from the departure airport to the airport to which it was
released (IFR reserve)
• Thereafter, to fly to the most distant destination alternate airport
specified in the flight release, if an alternate is required (alterna-
te fuel). If no destination alternate airport is specified under
121.621(a)(2) or 121.623(b)), then a turbojet aircraft must have
suffi-cient fuel to fly for at least 2 hours at normal cruising fuel
consump-tion after reaching the planned destination airport;
and a turboprop aircraft must have sufficient fuel to fly for at
least 3 hours at normal cruising fuel consumption after reaching
the planned destination air-port.
• Thereafter, to fly for 30 minutes at holding speed at 1500 feet
above the destination alternate airport (or the planned destina-
tion airport if no destination alternate airport is equired) (hol-
ding fuel).
Extended range operations (ETOPS) may be applicable to US Flag
opera-tions.