747-400ER

The 747-400ER (Extended Range) was launched on November 28, 2000 following an order by Qantas for six aircraft.^[18] This was ultimately the only order for the passenger version. The −400ER can fly an additional 500 miles (805 km) or carry 15,000 lb (6,800 kg) more freight. Qantas received the first −400ER on October 31, 2002. The 747-400ER included the option of one or two additional 3,240 US gallon body fuel tanks in the forward cargo hold. Manufactured by Marshall Aerospace, these tanks utilized metal to metal honeycomb-bonded technology to achieve a high dry weight-to-fuel volume ratio. Similar technology has been used by Marshall in the development of body fuel tanks for the Boeing 777-200LR and Boeing P-8A Poseidon.

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