The standard 747-400 Freighter can carry 248,000 lb (103,419 kg) of cargo approximately 4,450 nmi. With the 747-400ER Freighter, operators can fly an addi- tional 525 nmi or carry an additional 22,000 lb (9,979 kg) of payload. The improvements to the 747-400ER Freighter provide additional operational flexibility (fig.