Boeing 314 "Clipper"
Named "Clipper" in reference to the big transoceanic ships, the Boeing 314 was the answer of engineer
Wellwood E. Beall to a 1935 specification issued by Pan American on a transport plane capable of crossing the
Atlantic in good conditions of security and comfort. The first 6 machines were ordered by Pan Am in July 1936.
After the first flight of June 7, 1938, a total of 12 machines were constructed in a period of three years.
The transatlantic inaugural flight that took place on May 20, 1939 was a postal flight between Port Washington and Marseilles,
via the Azores and Lisbon. The first passenger crossing was done by the "Dixie Clipper" on June 28, 1939.
It was at that time the biggest transport plane in the world. The "Yankee Clipper" flew between New York
and Southampton for the first time on July 8, 1939.
Different names, such as "American Clipper", "Anzac Clipper", "Atlantic
Clipper", "California Clipper", "Pacific Clipper", "Cape town Clipper"
and "Honolulu Clipper" were given by the company. Unfortunately for Pan Am, the transatlantic flights
were interrupted after only three months of operation, at the break of WW2 in September 1939.
The Boeing 314 was then affected to military hardware and personnel transportation and it is with a 314 that president
Roosevelt went to Morocco in 1943 where he met Winston Churchill at the Casablanca conference. The English prime
minister also used the 314 time and again during the war for his intercontinental flights.
The "Clipper" had reached an unpreceded level of comfort. Five passenger compartments offered a maximum of
74 seats or 40 beds in the night flight configuration. Separated toilets for women and men were foreseen, as well
as galleys and a lounge / dining room compartment.
Derived from the XB-15 bomber of which it borrowed the wings, the Clipper benefited the supplement of power delivered
by the four 1,500 hp Wright Cyclone engines. Sponsons assuring the stability on water were also used as fuel tanks whose
total capacity reached 16,000 litres. The characteristic triple fin was adopted following longitudinal stability problems
that prototypes equipped with a simple or double fin had experienced.
Encouraged by the success of the first six machines, Pan Am passed an order for six 314A models whose first exemplar
flew on March 20, 1941. Only three of the six planes were delivered to Pan Am, the others being used by the English
company BOAC that gave them back in 1948. On the total of 12 machines constructed by Boeing, five " Clipper " were also used by the USAAF and the US NAVY.
The plane was also used on the Pacific lines, in Asia and in East Africa. Pan Am exploited her "Clipper" until 1946,
but some of these machines flew again until 1951 for charter companies.
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