Boeing 747-300 Stretched Upper-Deck Passenger Variant

The Boeing 747-300 is the stretched-upper-deck passenger branch of the classic 747 series, adding capacity and an extended upper deck while retaining the family widebody architecture. It is a distinct passenger model from the 747-200 variants, the later 747-400 modernization, and dedicated freighter branches. The stretched upper deck increases cabin capacity without changing the classic wing's 59.64 m span. Boeing's JT9D-7R4G2 all-passenger planning column lists 377,800 kg MTOW. Its basic mixed-class maximum seating arrangement has 565 seats, including 69 first-class seats; an alternative ten-abreast economy arrangement has 608. These are manufacturer planning layouts, not a typical airline cabin or the Combi configuration.