Sikorsky S-40 (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Sikorsky S-40" in English language version.

refsWebsite

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10books.google.com

3^rd place

3ucr.edu

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1nasa.gov

75^th place

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1miami.edu

4,511^th place

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1clipperflyingboats.com

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1aerofiles.com

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7,155^th place

1flyingclippers.com

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aerofiles.com

"The Pan American Clippers". Aerofiles. Retrieved 23 March 2020.

books.google.com

"Mammoth Sikorsky Passenger Transport". Popular Aviation. October 1931. p. 22.
"Details of The Giant Sikorsky". Popular Aviation. December 1931. p. 89.
Knapp, Lewis G. (2002). "2. Industry at the River". Stratford and the Sea. Charleston, South Carolina: Arcadia Publishing. pp. 37–66. ISBN 0-7385-2399-2. Retrieved 26 March 2020.
Gandt, Robert L. (1991). "10: The Flying Forest". China Clipper: The Age of the Great Flying Boats. Annapolis, Maryland: Naval Institute Press. ISBN 978-1-61251-424-6. Retrieved 26 March 2020.
Leary, William M. (2005). "Sharing a Vision: Juan Trippe, Charles Lindbergh, and the Development of International Air Transport". In Dawson, Virginia P.; Bowles, Mark D. (eds.). Realizing the Dream of Flight: Biographical Essays in Honor of the Centennial of Flight, 1903–2003. Washington DC: National Aeronautics and Space Administration, NASA History Division, Office of External Relations. pp. 47–68. ISBN 9780160831515. Retrieved 26 March 2020. alternate link: PDF
Johnson, E.R. (2009). American Flying Boats and Amphibious Aircraft: An Illustrated History. Jefferson, North Carolina: McFarland & Company, Inc. pp. 189–191. ISBN 978-0786439744. Retrieved 27 March 2020.
Rankin, Robert H. (September 1935). "The Marvelous History of the Pan American Airways". Popular Aviation. Vol. XVII, no. 3. pp. 154–156, 200–201. Retrieved 27 March 2020. After securing a license as both a flying boat and an amphibian, the wheel gear was removed from the machine and the "American Clipper", as well as its sister ships "Caribbean Clipper", and the "Southern Clipper", became full-fledged flying boats.
Rankin, Robert H. (December 1937). "The Story of the Amphibian". Popular Aviation. Vol. XXI, no. 6. pp. 11–14, 70. Retrieved 27 March 2020.
Campbell, Douglas E. (2018). "37854/37855 - Sikorsky RS-4". VPNavy! USN, USMC, USCG and NATS Patrol Aircraft Lost or Damaged During World War II - Listed by Bureau Number. Lulu.com. p. 321. ISBN 978-1-387-88879-5. Retrieved 27 March 2020.
"Mrs. Hoover Christens the 'American Clipper'". U. S. Air Services. Vol. XVI, no. 13. November 1931. pp. 17–18. Retrieved 26 March 2020.

clipperflyingboats.com

"Sikorsky S-40". Pan Am Clipper Flying Boats. Retrieved 23 March 2020.

flyingclippers.com

"Pan American Airways Clippers 1931–1946". The Flying Clippers. Retrieved 24 March 2020.

miami.edu

scholar.library.miami.edu

"Photograph of the christening ceremony of Pan Am's 'American Clipper', a Sikorsky S-40 flying boat christened by Mrs. Herbert Hoover on Oct. 12, 1931". UM Libraries Digital Exhibits. University of Miami. September 1985. Retrieved 26 March 2020.

nasa.gov

ntrs.nasa.gov

Leary, William M. (2005). "Sharing a Vision: Juan Trippe, Charles Lindbergh, and the Development of International Air Transport". In Dawson, Virginia P.; Bowles, Mark D. (eds.). Realizing the Dream of Flight: Biographical Essays in Honor of the Centennial of Flight, 1903–2003. Washington DC: National Aeronautics and Space Administration, NASA History Division, Office of External Relations. pp. 47–68. ISBN 9780160831515. Retrieved 26 March 2020. alternate link: PDF

ucr.edu

cdnc.ucr.edu

"40-Passenger Plane Tested in Connecticut". Santa Cruz Evening News. AP. August 7, 1931. Retrieved 26 March 2020.
"The Largest Amphibion in America". Calexico Chronicle. August 13, 1931. Retrieved 26 March 2020.
"Huge Plane Salutes Capitol". Calexico Chronicle. October 30, 1931. Retrieved 26 March 2020.