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Sikorsky S-42

 

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Sikorsky S-42


 
 

The Sikorsky S-42 was an 1930s AmericanUnited States

The United States of America, also known as the United States, the U.S., the U.S.A., and America, is...
 commercial flying boat designed and built by Sikorsky to meet a 1931 requirement from Pan AmericanPan American World Airways

Pan American World Airways, commonly known as Pan Am, was the principal international airline of the United States fro...
 for a long-range transatlantic flying boat.

Design and development

Based on the earlier SikorskySikorsky Aircraft Summary

Sikorsky is an American aircraft and helicopter manufacturer....
 S-40Sikorsky S-40

The Sikorsky S-40 was an amphibious flying boat built in the early 1930s, and the largest commercial airliner of its time....
 that flew in 1931, Igor SikorskyIgor Sikorsky

...
 and Charles LindberghCharles Lindbergh Summary

Charles Augustus Lindbergh, Jr., known as "Lucky Lindy" and "The Lone Eagle", was an American aviator famous for piloting th...
, working at the time as a Pan American AirwaysFacts About Pan American World Airways

Pan American World Airways, commonly known as Pan Am, was the principal international airline of the United States fro...
 consultant, laid out plans for a new, larger flying boat. During the S-40's inaugural flight on 19 November 1931, the two visionaries began preliminary sketches on the back of a menu in the S-40's lounge.

Pan Am's president, Juan TrippeJuan Trippe

Juan Terry Trippe was an airline entrepreneur and pioneer....
, had a similar vision of an aircraft able to span oceans. The new design provided for an increased lifting capacity to carry enough fuel for a 2,500 mile nonstop flight against a 30 mile-an-hour (48 km/h) wind, at a cruising speed far in excess of the average operating speed of any flying boat at that time. Pan Am was also courted by Glenn MartinGlenn L. Martin Company

...
 but Sikorsky's S-42 was delivered first, as the Martin M-130Martin M-130 Summary

The Martin M-130 is truly a plane whose fame far surpasses its production volume....
 was still almost a year away from completion.

Operational history

Flying for Pan American Airways, a total of ten S-42s were built, manufactured by the Vought-Sikorsky Aircraft Division of the United Aircraft CorporationUnited Aircraft and Transport Corporation

The United Aircraft and Transport Corporation was formed In 1929, when William E....
 in Stratford, ConnecticutStratford, Connecticut Summary

Stratford is a town in Fairfield County, Connecticut, United States, located on Long Island Sound at the mouth of the Housat...
. The aircraft first flew on 30 March 1934. The S-42 was also known as the Flying Clipper and the Pan Am Clipper.

British Marine Aircraft Ltd. was formed in February 1936 to produce S-42-A flying boats under licence in the United KingdomUnited Kingdom

The United Kingdom of Great Britain and Northern Ireland is a country and sovereign state that lies off the northwest coast...
 but nothing came of this. The company built a factory on the western side of the HambleHamble

Hamble may refer to:* River Hamble in Hampshire, UK...
 peninsula with a slipway to Southampton WaterSouthampton Water

Southampton Water, historically trissanton bay, is a stretch of the sea north of the Isle of Wight and the Solent, in Englan...
. When the deal fell through the company was sold to H.P. Folland, who renamed it Folland Aircraft LimitedFolland

Folland was a British aircraft manufacturing company. ...
.

All Sikorsky S-42s were either scrapped or destroyed in accidents.

Variants

S-42
Production aircraft with four 700hp (522kW) Pratt & Whitney HornetPratt & Whitney R-1690

The Pratt & Whitney R-1690 Hornet was an engine widely used in American aircraft from the 1920s through 1940s....
 S5D1G radial engines, three built.

S-42A
Production aircraft with four 750hp (559kW) Pratt & Whitney HornetPratt & Whitney R-1690

The Pratt & Whitney R-1690 Hornet was an engine widely used in American aircraft from the 1920s through 1940s....
 S1EG radial engines, longer wings and a 2000lb (907Kg) increase in maximum take-off weight, three built.

S-42B
Production aircraft with aerodynamic improvements, constant-speed Hamilton Standard propellers and a further 2000lb (907Kg) increase in maximum take-off weight, four built.

Specifications (S-42-A)

External links



See also