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Boeing 314 Clipper was a long-range flying boat produced by the Boeing Airplane Company.

Boeing 314 Clipper Flying Boat Used "Air Force One"


Pan American had requested a flying boat with unprecedented range that could augment the airline's trans-Pacific Martin M-130. Boeing's bid was successful and on July 21, 1936, Pan American signed a contract for six. Boeing engineers adapted the cancelled XB-15's 149 ft (45 m) wing, and replaced the 850 hp (630 kW) Pratt & Whitney Twin Wasp radial engines with the 1,600 hp (1,200 kW) Wright Twin Cyclone. Pan Am ordered six more aircraft with increased engine power and capacity for 77 daytime passengers as the Boeing 314A.


The huge flying boat was assembled at Boeing's Plant 1 on the Duwamish River in Seattle, and towed to Elliott Bay for taxi and flight tests. The first flight was on June 7, 1938, piloted by Edmund T. "Eddie" Allen. At first the aircraft had a single vertical tail, and Allen found he had inadequate directional control. The aircraft returned to the factory and was fitted with the endplates on the ends of the horizontal tail in place of the single vertical fin. This too was found to be lacking and finally the centerline vertical fin was restored, after which the aircraft flew satisfactorily



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The Model 314 was then the only aircraft in the world that could make the 2,150-statute-mile (3,460 km) crossing over water,[15] and was given the military designation C-98. Since the Pan Am pilots and crews had extensive expertise in using flying boats for extreme long-distance over-water flights, the company's pilots and navigators continued to serve as flight crew. In 1943, President Franklin D. Roosevelt traveled to the Casablanca Conference in a Pan-Am crewed Boeing 314 Dixie Clipper.

Boeing 314 Clipper

The Boeing 314 Clipper was a long-range flying boat produced by the Boeing Airplane Company between 1938 and 1941. One of the largest aircraft of the time, it used the massive wing of Boeing's earlier XB-15 bomber prototype to achieve the range necessary for flights across the Atlantic and Pacific oceans. Twelve Clippers were built; nine were brought into service for Pan Am.

  • History

    Role Flying boat airliner

    Manufacturer Boeing Airplane Company

    First flight June 7, 1938

    Introduction 1939

    Retired 1948

    Status Retired

    Produced 1938–1941

    Number built 12

  • Primary Users

    Crew: 11, including 2 cabin stewards

    Capacity: Daytime: 74 passengers, Nighttime: 36 passengers

    Payload: 10,000 lb (4,500 kg) of mail and cargo

    Length: 106 ft (32.33 m) / Wingspan: 152 ft (46.36 m)

    Height: 20 ft 4½ in (6.22 m)

    Loaded weight: 84,000 lb (38,000 kg)

    Powerplant: 4 × Wright R-2600-3 radial engines, 1,600 hp (1,200 kW) each

  • Specifications

    Maximum speed: 210 mph (180 knots, 340 km/h)

    Cruise speed: 188 mph (163 knots, 302 km/h) at 11,000 ft (3,400 m)

    Range: 3,685 mi (3,201 nm, 5,896 km) normal cruise

    Service ceiling: 19,600 ft (5,980 m)

Boeing 314 Clipper Flying Boat used as "Air Force One"


The Boeing 314 Clipper was a long-range flying boat produced by the Boeing Airplane Company between 1938 and 1941.


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