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S-39
S-39
	Sikorsky S-39 of the Civil Air Patrol, 1942
General information
Type	Flying boat
National origin	United States
Manufacturer	Sikorsky Aircraft
Number built	21
History
First flight	24 December 1929; 95 years ago

The Sikorsky S-39 is an American light amphibious aircraft produced by Sikorsky Aircraft during the early 1930s. The S-39 was a smaller, single-engine version of the S-38.^[1]

Operational history

Spirit of Africa

Filmmakers Martin and Osa Johnson used a giraffe-patterned S-39 Spirit of Africa, with companion zebra-striped S-38 Osa's Ark, to explore Africa extensively, making safari movies and books.^[2]

Military usage

One example of the S-39 was acquired by the United States Army Air Corps in 1932, given the designation Y1C-28. It was evaluated for use in coastal patrol and light transport roles; in 1934 it was redesignated C-28 and assigned as a liaison aircraft to the United States Military Academy.^[3]

At least one S-39 saw service with the Civil Air Patrol Coastal Patrol from 1942 to 1943. This was part of a fleet of civilian aircraft flown by volunteers along the Atlantic and Gulf Coasts, searching for both German submarines and for allied ships in distress. Seaplanes such as the S-39 were sometimes used for search and rescue if another aircraft crashed or went missing.^[4] A surviving CAP S-39, previously based at Rehoboth Beach, Delaware, is currently on display at the New England Air Museum.

Yacht

Edward A. Deeds had the yacht Lotosland designed to incorporate aircraft capability. After loss of the planned aircraft on first loading Deeds ordered an S-39-A replacement the next day. The aircraft was intended to allow Deeds to quickly travel from his yacht to business and events ashore.^[5]^[6]^[7]

Variants

S-39-A: 4-seat version^[8]
S-39-B: Improved 5-seat version of the S-39-A^[8]
S-39-C: Converted from S-39-B^[9]
C-28: One example of the S-39 acquired by the United States Army Air Corps

Surviving aircraft

904 – S-39-B on static display at the New England Air Museum in Windsor Locks, Connecticut.^[1]
Composite – S-39-C airworthy with at Fantasy of Flight in Polk City, Florida.^[10]^[11] It was recovered from Alaska in 1965 and incorporated parts of five S-39s. It was restored by Dick Jackson and first flew in 2003.^[9]^[12]
920 – S-39-C under restoration with Frederick W. Patterson III of American Canyon, California. This is the last S-39 produced and was originally owned by Shell Eastern, the original name of the Shell Oil Company.^[13]^{[failed verification]}

Specifications (S-39A)

Data from Aerofiles : Sikorsky,^[14] American flying boats and amphibious aircraft : an illustrated history^[15]

General characteristics

Crew: 1 or 2
Capacity: 4 or 5 pax / 1,145–1,300 lb (519–590 kg) payload
Length: 31 ft 11 in (9.73 m)
Wingspan: 52 ft 0 in (15.85 m)
Wing area: 320 sq ft (30 m²)
Airfoil: Sikorsky GS-1 ^[16]
Empty weight: 2,678 lb (1,215 kg)
Gross weight: 4,000 lb (1,814 kg)
Powerplant: 1 × Pratt & Whitney R-985 Wasp Junior 9-cylinder air-cooled radial piston engine, 300 hp (220 kW)

Performance

Maximum speed: 115 mph (185 km/h, 100 kn)
Cruise speed: 97 mph (156 km/h, 84 kn)
Stall speed: 54 mph (87 km/h, 47 kn)
Range: 375 mi (604 km, 326 nmi)

References

^ ^a ^b "Sikorsky S-39B "Jungle Gym"". New England Air Museum. Archived from the original on 21 September 2021. Retrieved 21 September 2021.
^ "Flying Expedition To Africa To Visit Forbidden Area." Popular Mechanics, April 1933.
^ "Sikorsky Y1C-28." National Museum of the United States Air Force, June 24, 2009. Retrieved: July 15, 2017.
^ Blazich, Frank A. Jr. (2020). An honorable place in American air power": Civil Air Patrol coastal patrol operations, 1942-1943 (PDF). Air University Press. p. 109-112. ISBN 978-1-58566-305-7. Retrieved September 21, 2021.
^ "The Diesel Yacht Lotosland". MotorBoating. February 1931. pp. 90–91. Retrieved 23 October 2020.
^ Pacific American Steamship Association; Shipowners Association of the Pacific Coast (August 1929). "Diesel Yacht Lotosland". Pacific Marine Review. San Francisco: J.S. Hines: 29. Retrieved 23 October 2020.{{cite journal}}: CS1 maint: multiple names: authors list (link)
^ "S38" (PDF). NEAM News. Windsor Locks, Ct.: New England Air Museum. Fall 1994. p. 4. Archived from the original (PDF) on 26 October 2020. Retrieved 23 October 2020.
^ ^a ^b "A.T.C. #375" (PDF). Golden Wings Flying Museum. Retrieved 7 August 2018.
^ ^a ^b Jackson, Dick. "40 Years and 40,000 Hours". Spirit of Igor. Richard Jackson. Retrieved 7 August 2018.
^ "1930 Sikorsky S-39". Fantasy of Flight. 17 September 2013. Retrieved 7 August 2018.
^ "FAA REGISTRY [N50V]". Federal Aviation Administration. U.S. Department of Transportation. Archived from the original on 7 August 2018. Retrieved 7 August 2018.
^ Jackson, Dick. "40 Years and 40,000 Hours - Part 2". Spirit of Igor. Richard Jackson. Retrieved 7 August 2018.
^ "FAA REGISTRY [N58V]". Federal Aviation Administration. U.S. Department of Transportation. Archived from the original on 7 August 2018. Retrieved 7 August 2018.
^ Eckland, K.O. "american airplanes: Sikorsky". aerofiles.com. Retrieved 18 April 2019.
^ Johnson, E.R. (2009). American flying boats and amphibious aircraft: an illustrated history. Jefferson, N.C.: McFarland & Co. pp. 188–189. ISBN 978-0-7864-3974-4.
^ Lednicer, David. "The Incomplete Guide to Airfoil Usage". m-selig.ae.illinois.edu. Retrieved 16 April 2019.

External links

[NEAM-1] "Sikorsky S-39B "Jungle Gym"". New England Air Museum. Archived from the original on 21 September 2021. Retrieved 21 September 2021.

[2] "Flying Expedition To Africa To Visit Forbidden Area." Popular Mechanics, April 1933.

[3] "Sikorsky Y1C-28." National Museum of the United States Air Force, June 24, 2009. Retrieved: July 15, 2017.

[4] Blazich, Frank A. Jr. (2020). An honorable place in American air power": Civil Air Patrol coastal patrol operations, 1942-1943 (PDF). Air University Press. p. 109-112. ISBN 978-1-58566-305-7. Retrieved September 21, 2021.

[5] "The Diesel Yacht Lotosland". MotorBoating. February 1931. pp. 90–91. Retrieved 23 October 2020.

[6] Pacific American Steamship Association; Shipowners Association of the Pacific Coast (August 1929). "Diesel Yacht Lotosland". Pacific Marine Review. San Francisco: J.S. Hines: 29. Retrieved 23 October 2020.{{cite journal}}: CS1 maint: multiple names: authors list (link)

[7] "S38" (PDF). NEAM News. Windsor Locks, Ct.: New England Air Museum. Fall 1994. p. 4. Archived from the original (PDF) on 26 October 2020. Retrieved 23 October 2020.

[UCAS-8] "A.T.C. #375" (PDF). Golden Wings Flying Museum. Retrieved 7 August 2018.

[SoIH1-9] Jackson, Dick. "40 Years and 40,000 Hours". Spirit of Igor. Richard Jackson. Retrieved 7 August 2018.

[10] "1930 Sikorsky S-39". Fantasy of Flight. 17 September 2013. Retrieved 7 August 2018.

[11] "FAA REGISTRY [N50V]". Federal Aviation Administration. U.S. Department of Transportation. Archived from the original on 7 August 2018. Retrieved 7 August 2018.

[12] Jackson, Dick. "40 Years and 40,000 Hours - Part 2". Spirit of Igor. Richard Jackson. Retrieved 7 August 2018.

[13] "FAA REGISTRY [N58V]". Federal Aviation Administration. U.S. Department of Transportation. Archived from the original on 7 August 2018. Retrieved 7 August 2018.

[Sikorsky-14] Eckland, K.O. "american airplanes: Sikorsky". aerofiles.com. Retrieved 18 April 2019.

[Johnson-15] Johnson, E.R. (2009). American flying boats and amphibious aircraft: an illustrated history. Jefferson, N.C.: McFarland & Co. pp. 188–189. ISBN 978-0-7864-3974-4.

[Selig-16] Lednicer, David. "The Incomplete Guide to Airfoil Usage". m-selig.ae.illinois.edu. Retrieved 16 April 2019.

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PROFILPELAJAR.COM

Sikorsky S-39

Operational history

Spirit of Africa

Military usage

Yacht

Variants

Surviving aircraft

Specifications (S-39A)

References

External links

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