Sikorsky S-42: Difference between revisions

Sikorsky S-42
Role	Flying boat Airliner
National origin	United States
Manufacturer	Sikorsky
Designer	Igor Sikorsky
First flight	March 30, 1934 (prototype)
Introduction	1934
Status	Retired, none remaining
Primary user	Pan American Airways
Number built	10

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Revision as of 17:48, 3 April 2010

The Sikorsky S-42 was an 1930s American commercial flying boat designed and built by Sikorsky to meet a 1931 requirement from Pan American for a long-range transatlantic flying boat.

Design and development

Based on the earlier Sikorsky S-40 that flew in 1931, Igor Sikorsky and Charles Lindbergh, working at the time as a Pan American Airways consultant, laid out plans for a new, larger flying boat. During the S-40's inaugural flight on November 19, 1931, the two visionaries began preliminary sketches on the back of a menu in the S-40's lounge.

Pan Am's president, Juan Trippe, 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 mph (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 Martin but Sikorsky's S-42 was delivered first, as the Martin M-130 was still almost a year away from completion.

Operational history

Flying for Pan American Airways, a total of 10 S-42s were built, manufactured by the Vought-Sikorsky Aircraft Division of the United Aircraft Corporation in Stratford, Connecticut. The prototype first flew on March 30, 1934.

The S-42 only served with Pan American Airways. It was used on many routes, including the San Francisco - Hawaii, New York - Bermuda, and Hong Kong -China.

The S-42 was also known as the Flying Clipper and the Pan Am Clipper. ^[1]

British Marine Aircraft Ltd. was formed in February 1936 to produce S-42-A flying boats under licence in the United Kingdom but nothing came of this. The company built a factory on the western side of the Hamble peninsula with a slipway to Southampton Water. When the deal fell through the company was sold to H.P. Folland, who renamed it Folland Aircraft Limited.^[2]

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

Variants

S-42: Production aircraft with four 700 hp (522 kW) Pratt & Whitney Hornet S5D1G radial engines, three built: NC 822M, NC 823M, NC 824M.
S-42A: Production aircraft with four 750hp (559kW) Pratt & Whitney Hornet S1EG radial engines, longer wings and a 2000lb (907Kg) increase in maximum take-off weight, four built: NC 15373, NC 15374, NC 15375, NC 15376^[3].
S-42B: Production aircraft with aerodynamic improvements, constant-speed Hamilton Standard propellers and a further 2000lb (907Kg) increase in maximum take-off weight, three built: NC 16734, NC 16735, NC 16736.

Specifications (S-42-A)

Data from Sikorsky S-42 Clipper Data Sheet^[1] Flying boat, 1934

General characteristics

Crew: 4
Capacity: up to 37 day passengers or 14 sleeper berths

Performance

References

Notes

^ ^a ^b McKinney, Michael. "The First Clippers: The 'Sikorsky S-42." flyingclippers.com. Retrieved: April 3, 2010.
^ Fagan, Dave. "Hamble." Aviation in Hampshire UK 1900 to 2000. Retrieved: July 5, 2009.
^ Donnelley, James E. "The Crash of NC 15376." webstart.com. Retrieved: April 3, 2010.

Bibliography

Davies, R.E.G. Pan Am: An Airline and its Aircraft. New York: Orion Books, 1987. ISBN 0-517-56639-7.
Yenne, Bill. Seaplanes & Flying Boats: A Timeless Collection from Aviation's Golden Age. New York: BCL Press, 2003. ISBN 1-932302-03-4.

External links

[Sikorsky_S-42-1] McKinney, Michael. "The First Clippers: The 'Sikorsky S-42." flyingclippers.com. Retrieved: April 3, 2010.

[2] Fagan, Dave. "Hamble." Aviation in Hampshire UK 1900 to 2000. Retrieved: July 5, 2009.

[3] Donnelley, James E. "The Crash of NC 15376." webstart.com. Retrieved: April 3, 2010.

[1]

[2]

[3]

@@ Line 9: / Line 9: @@
  |manufacturer = [[Sikorsky Aircraft Corporation|Sikorsky]]
  |designer= [[Igor Sikorsky]]
- |first flight = 29 March 1934 (Prototype)
+ |first flight = March 30, 1934 (prototype)
  |introduced=[[1934 in aviation|1934]]
  |status =  Retired, none remaining
@@ Line 23: / Line 23: @@
 ==Design and development==
-Based on the earlier [[Sikorsky Aircraft|Sikorsky]] [[Sikorsky S-40|S-40]] that flew in 1931, [[Igor Sikorsky]] and [[Charles Lindbergh]], working at the time as a [[Pan American World Airways|Pan American Airways]] 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.
+Based on the earlier [[Sikorsky Aircraft|Sikorsky]] [[Sikorsky S-40|S-40]] that flew in 1931, [[Igor Sikorsky]] and [[Charles Lindbergh]], working at the time as a [[Pan American World Airways|Pan American Airways]] consultant, laid out plans for a new, larger flying boat. During the S-40's inaugural flight on November 19, 1931, the two visionaries began preliminary sketches on the back of a menu in the S-40's lounge.
 Pan Am's president, [[Juan Trippe]], 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 mph (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 L. Martin Company|Glenn Martin]] but Sikorsky's S-42 was delivered first, as the [[Martin M-130]] was still almost a year away from completion.
 ==Operational history==
-Flying for Pan American Airways, a total of 10 S-42s were built, manufactured by the [[Vought-Sikorsky]] Aircraft Division of the [[United Aircraft and Transport Corporation|United Aircraft Corporation]] in [[Stratford, Connecticut]]. The prototype first flew on 30 March 1934.
+Flying for Pan American Airways, a total of 10 S-42s were built, manufactured by the [[Vought-Sikorsky]] Aircraft Division of the [[United Aircraft and Transport Corporation|United Aircraft Corporation]] in [[Stratford, Connecticut]]. The prototype first flew on March 30, 1934.
 The S-42 only served with Pan American Airways. It was used on many routes, including the San Francisco - Hawaii, New York - Bermuda, and Hong Kong -China.
-The S-42 was also known as the '''Flying Clipper''' and the '''Pan Am Clipper'''. <ref>[http://www.flyingclippers.com/S42.html Flying Clippers]</ref>
+The S-42 was also known as the '''Flying Clipper''' and the '''Pan Am Clipper'''. <ref name= "Sikorsky S-42">McKinney, Michael. [http://www.flyingclippers.com/S42.html "The First Clippers: The 'Sikorsky S-42."] ''flyingclippers.com''. Retrieved: April 3, 2010.</ref>
-[[British Marine Aircraft Ltd.]] was formed in February 1936 to produce S-42-A flying boats under licence in the [[United Kingdom]] but nothing came of this. The company built a factory on the western side of the [[Hamble]] peninsula with a slipway to [[Southampton Water]]. When the deal fell through the company was sold to [[H.P. Folland]], who renamed it [[Folland|Folland Aircraft Limited]].<ref>Fagan, Dave. [http://daveg4otu.tripod.com/airfields/ham.html "Hamble."] ''Aviation in Hampshire UK 1900 to 2000''. Retrieved: 5 July 2009.</ref>
+[[British Marine Aircraft Ltd.]] was formed in February 1936 to produce S-42-A flying boats under licence in the [[United Kingdom]] but nothing came of this. The company built a factory on the western side of the [[Hamble]] peninsula with a slipway to [[Southampton Water]]. When the deal fell through the company was sold to [[H.P. Folland]], who renamed it [[Folland|Folland Aircraft Limited]].<ref>Fagan, Dave. [http://daveg4otu.tripod.com/airfields/ham.html "Hamble."] ''Aviation in Hampshire UK 1900 to 2000''. Retrieved: July 5, 2009.</ref>
 All Sikorsky S-42s were either scrapped or destroyed in accidents.
@@ Line 42: / Line 42: @@
 :Production aircraft with four 700 hp (522 kW) [[Pratt & Whitney R-1690|Pratt & Whitney Hornet]] S5D1G radial engines, three built: NC 822M, NC 823M, NC 824M.
 ;S-42A
-:Production aircraft with four 750hp (559kW) [[Pratt & Whitney R-1690|Pratt & Whitney Hornet]] S1EG radial engines, longer wings and a 2000lb (907Kg) increase in maximum take-off weight, four built: NC 15373, NC 15374, NC 15375, NC 15376<ref>[http://www.webstart.com/jed/house/NC15376/ The Crash of NC 15376]</ref>.
+:Production aircraft with four 750hp (559kW) [[Pratt & Whitney R-1690|Pratt & Whitney Hornet]] S1EG radial engines, longer wings and a 2000lb (907Kg) increase in maximum take-off weight, four built: NC 15373, NC 15374, NC 15375, NC 15376<ref>Donnelley, James E. [http://www.webstart.com/jed/house/NC15376/ "The Crash of NC 15376."] ''webstart.com''. Retrieved: April 3, 2010.</ref>.
 ;S-42B
 :Production aircraft with aerodynamic improvements, constant-speed Hamilton Standard propellers and a further 2000lb (907Kg) increase in maximum take-off weight, three built: NC 16734, NC 16735, NC 16736.
@@ Line 52: / Line 52: @@
 |jet or prop?=prop<!-- options: jet/prop/both/neither -->
+|ref=Sikorsky S-42 Clipper Data Sheet<ref name= "Sikorsky S-42"/>
-|ref={{Fact|date=February 2008}}
+Flying boat, 1934
 |crew=4
@@ Line 161: / Line 163: @@
 *[http://www.clipperflyingboats.com/pan-am/sikorsky-s4 Sikorsky S-42 photos and history'']
 *[http://www.flyingclippers.com/S42.html Sikorsky S-42'']
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