The Boeing Model 314 ‘Clipper’ aircraft were the largest flying boats ever to carry passengers in commercial service, with a wing span of 46.3 m (152 ft), a length of 32.3 m (106 ft) and a maximum takeoff weight of 38.1 tonnes (84,000 lb).

Clippers were operated by Pan American Airlines during the ‘golden age’ of flying boats, the late 1930s, and had seats for 74, or reclining night-time berths for 40 passengers.
The aircraft were the first to operate regular passenger services across the North Atlantic, from New York to Southampton via Newfoundland.
They were powered by four Wright GR-2600 Twin Cyclone 1,192 kW (1,600 hp) engines.