The Info List - Sikorsky Aircraft

The Sikorsky Aircraft
Sikorsky Aircraft
Corporation is an American aircraft manufacturer based in Stratford, Connecticut. It was established by Igor Sikorsky in 1923 and was among the first companies to manufacture helicopters for civilian and military use. Previously owned by United Technologies Corporation
United Technologies Corporation
(UTC), in November 2015 Sikorsky was sold to Lockheed Martin.


1 History

1.1 Acquisition

2 AHS Sikorsky Prize 3 Products

3.1 Airplanes 3.2 Helicopters 3.3 Other aircraft 3.4 Other products

4 Gallery 5 See also 6 References 7 External links


This section needs to be updated. Please update this article to reflect recent events or newly available information. Last update: Update about Sikorsky Global Helicopters brand ending (October 2017)

On May 23, 1923 the "Sikorsky Aero Engineering Corporation" was founded near Roosevelt Field by Igor Sikorsky, an immigrant to the United States who was born in Kiev.[3][4] In 1925 the company name was changed to "Sikorsky Manufacturing Company".[5] In 1929 the company moved to Stratford, Connecticut
Stratford, Connecticut
and it became a part of United Aircraft and Transport Corporation (now United Technologies Corporation) in July of that year.[6]

Advertisement for Sikorsky S-42
Sikorsky S-42
Clipper flying boat from 1937

In the United States, Igor Sikorsky
Igor Sikorsky
originally concentrated on the development of multi-engined landplanes and then amphibious aircraft. In the late 1930s, sales declined and United Aircraft merged his division with Vought
Aircraft.[6] He took this opportunity to begin work on developing a practical helicopter. After first flying the VS-300 he developed the Sikorsky R-4, the first stable, single-rotor, fully controllable helicopter to enter large full-scale production in 1942, upon which the majority of subsequent helicopters were based (though Sikorsky did not invent the helicopter itself). Sikorsky Aircraft
Sikorsky Aircraft
remains one of the leading helicopter manufacturers, producing such well-known models as the UH-60 Black Hawk
UH-60 Black Hawk
and SH-60 Seahawk, as well as experimental types like the Sikorsky S-72
Sikorsky S-72
X-Wing. It is a leading defense contractor. Sikorsky has supplied the Presidential helicopter since 1957. Sikorsky's VH-3 and VH-60 currently perform this role. The company acquired Helicopter
Support Inc. (HSI) in 1998. HSI handles non-U.S. government after-market support for parts and repair for the Sikorsky product lines.[7] United Technologies Corporation
United Technologies Corporation
(UTC) acquired Schweizer Aircraft Corp. in 2004,[8] which now operates as a subsidiary of Sikorsky. The product lines of the two firms are complementary, and have little overlap, as Sikorsky primarily concentrates on medium and large helicopters, while Schweizer produces small helicopters, UAVs, gliders, and light planes. The Schweizer deal was signed on August 26, 2004, exactly one week after the death of Paul Schweizer, the company's founder and majority owner. In late 2005, Sikorsky completed the purchase of Keystone Helicopter
Corporation, located in Coatesville, Pennsylvania. Keystone had been maintaining and completing Sikorsky S-76
Sikorsky S-76
and S-92 helicopters prior to the sale. In 2007, Sikorsky opened the Hawk Works,[9] a Rapid Prototyping and Military Derivatives Completion Center (RPMDCC) located west of the Elmira-Corning Regional Airport
Elmira-Corning Regional Airport
in Big Flats, New York. That same year Sikorsky purchased the PZL Mielec
PZL Mielec
plant in Poland. The plant is assembling the S-70i for international customers.[10][11] In February 2009, Sikorsky Global Helicopters was created as a business unit of Sikorsky Aircraft
Sikorsky Aircraft
to focus on the construction and marketing of commercial helicopters.[12] The business unit combines the main civil helicopters that were produced by Sikorsky Aircraft
Sikorsky Aircraft
and the helicopter business of Schweizer Aircraft
Schweizer Aircraft
that Sikorsky has acquired in 2004.[12] It is based at Coatesville, Pennsylvania.[12] In 2011, Sikorsky laid off 400 workers at the Hawk Works plant, and later in 2012 the remaining 570 workers and closed all Sikorsky facilities in Chemung County; moving the military completion work to their West Palm Beach, Florida
West Palm Beach, Florida
facility.[13] The commercial products had already been moved to their Coatesville, Pennsylvania
Coatesville, Pennsylvania
facility. Sikorsky's main plant and administrative offices are located in Stratford, Connecticut. Other Sikorsky facilities are in Trumbull, Shelton, and Bridgeport, Connecticut; Fort Worth, Texas; West Palm Beach, Florida; and Huntsville, and Troy, Alabama. Other Sikorsky-owned subsidiaries are in Coatesville, Pennsylvania; and Grand Prairie, Texas; among others around the world. Acquisition[edit] In 2015, UTC considered Sikorsky to be less profitable than its other subsidiaries, and analyzed a possible spin-off rather than a tax-heavy sale.[14][15][16] On July 20, 2015, Lockheed Martin
Lockheed Martin
announced an agreement to purchase Sikorsky from UTC for $9.0 billion.[17] Final approval (from the Chinese government) came in November 2015.[18] The sale was completed on November 6, 2015.[19] AHS Sikorsky Prize[edit] In 1980, the American Helicopter
Society International offered a prize of US$10,000 for the first human-powered helicopter flight (60-second duration, a height of 3 meters, and staying within an area of 10 x 10 m) and soon increased prize money to US$25,000. In 2010, Sikorsky Aircraft pledged to increase the prize sponsorship to US$250,000. The Canadian engineers Dr. Todd Reichert and Cameron Robertson developed the world's largest ever human powered helicopter with a team from the University of Toronto. The first flight of AeroVelo Atlas was been achieved in August 2012, the 64-second, 3.3-m-flight that won the prize on June 13, 2013.[20] Products[edit] Sikorsky designates nearly all of its models with S-numbers; numbers S-1 through S-27 were designed by Igor Sikorsky
Igor Sikorsky
in the Russian Empire. Later models, especially helicopters, received multiple designations by the military services using them, often depending on purpose (UH, SH, and MH for instance), even if the physical craft had only minor variations in equipment. In some cases, the aircraft were returned to Sikorsky or to another manufacturer and additionally modified, resulting in still further variants on the same basic model number. Airplanes[edit]

Sikorsky S-29-A: twin-engine cargo biplane. First Sikorsky built in the U.S. (1924) Sikorsky S-30: twin-engine, never built. (1925) Sikorsky S-31: single-engine biplane (1925) Sikorsky S-32: single-engine two-passenger biplane (1926) Sikorsky S-33: "Messenger" single-engine biplane (1925) Sikorsky S-34: twin-engine flying boat prototype. (1927) Sikorsky S-35: three-engine biplane prototype (1926) Sikorsky S-36: eight-seat two-engine flying boat "Amphibion" (1927) Sikorsky S-37: "Guardian" eight-seat two-engine biplane (1927) Sikorsky S-38: eight-seat two-engine boat flying boat (USN PS) (1928–1933)

Sikorsky RS: transport flying boat (USN RS)

Sikorsky S-39: five-seat single-engine variant of S-38 (1929–1932) Sikorsky S-40: "Flying Forest" four-engine 28-passenger flying boat (1931) Sikorsky S-41: twin-engine flying boat (1931) (USN RS-1) Sikorsky XP2S: twin-engine patrol flying boat prototype (1932) Sikorsky S-42: "Clipper" four-engine flying boat (1934–1935) Sikorsky S-43: "Baby Clipper" twin-engine amphibious flying boat (1935–1937) (Army OA-1, USN JRS-1) Sikorsky VS-44: "Excalibur" four-engine flying boat (1937) Sikorsky S-45: six-engine flying boat (for Pan Am). Never built (1938)


VS-300/S-46 (1939) Sikorsky S-47 (R-4): world's first production helicopter. (1940) Sikorsky S-48 (R-5/H-5): helicopter designed with higher load, endurance, speed, and service ceiling than the R-4 (1943) Sikorsky S-49 (R-6): improved R-4 with new fuselage Sikorsky S-51: larger, civil H-5. World's second certified commercial helicopter (1946) Sikorsky S-52
Sikorsky S-52
(H-18/HO5S): helicopter with all-metal rotors (1947) Sikorsky S-53 (XHJS-1) naval utility helicopter (1947) Sikorsky S-55: ten passenger utility helicopter, H-19 Chickasaw (1949) Sikorsky S-56: twin-engined helicopter, H-37A Mojave (1953) Sikorsky S-58 (H-34 Choctaw): eighteen passenger utility helicopter, larger more advanced than the S-55. Also available in ASW, VIP versions (1954) Sikorsky S-59 (XH-39): 2 H-18s converted to use one turboshaft engine (1953) Sikorsky S-60: prototype "flying crane" helicopter, crashed 1961 (1959) Sikorsky S-61: medium-lift transport/airliner helicopter (1959)

Sikorsky SH-3 Sea King: ASW, SAR or transport helicopter (1959) Sikorsky CH-124 Sea King: export version of the SH-3 Sea King for the Canadian Armed Forces (1963) Sikorsky S-61R: redesigned S-61 with rear cargo ramp; CH-3, HH-3 "Jolly Green Giant", and HH-3F Pelican (1963)

Sikorsky S-62: HH-52 Seaguard amphibious helicopter (1958) Sikorsky S-64 Skycrane: "flying crane" helicopter (1962)

Sikorsky CH-54 Tarhe: transport helicopter for the US Army (1962)

Sikorsky S-65, CH-53 Sea Stallion: medium/heavy lift transport helicopter (1964)

Sikorsky CH-53E Super Stallion: (1974) Sikorsky CH-53K King Stallion: Sikorsky MH-53: long-range search and rescue helicopter (1967)

Sikorsky S-66 AAFSS competitor, S-67 predecessor Sikorsky S-67 Blackhawk: prototype attack helicopter (1970) Sikorsky S-68: proposed modification of the S-58T, none built[21] Sikorsky S-69: prototype with contra-rotating co-axial rotors, twin conventional tail (1973) Sikorsky S-70: (1974)

Sikorsky HH-60 Jayhawk Sikorsky HH-60 Pave Hawk Sikorsky SH-60 Sea Hawk Sikorsky UH-60 Black Hawk List of Sikorsky S-70
Sikorsky S-70

Sikorsky S-71: entry for the US Army Advanced Attack Helicopter program. Designed using dynamic components from the S-70.[22][23][24] Sikorsky S-72: rotor systems research for NASA (1975) Sikorsky S-73: entry for the US Army HLH program. Sikorsky S-74: original designation of the Sikorsky S-76. Sikorsky S-75: advanced Composite Airframe Program (ACAP) all-composite proof of concept helicopter (1984) Sikorsky S-76: 14-seat commercial (1977) Sikorsky S-80: export version of the CH-53E/MH-53E Super Stallion heavy lift helicopter (1974) Sikorsky S-92
Sikorsky S-92
and military H-92 Superhawk (1995)

CH-148 Cyclone

Sikorsky S-97 Raider: proposed design for the United States Army Armed Aerial Scout program. (2010) Sikorsky S-300C (1964)

Sikorsky Firefly

Sikorsky S-333
Sikorsky S-333
(1992) Sikorsky S-434
Sikorsky S-434
(2008) Sikorsky X2: concept demonstrator with twin, contra-rotating rotors and a pusher prop. (2008) Sikorsky-Boeing SB-1 Defiant

Other aircraft[edit]

Sikorsky XBLR-3: Bomber aircraft (1935-1936) Sikorsky XSS: Naval scout flying-boat (1933) Boeing-Sikorsky RAH-66 Comanche Sikorsky S-57/XV-2: Supersonic convertiplane with single blade retractable rotor. Never built. Sikorsky Cypher: Doughnut-shaped UAV (1992) Sikorsky Cypher
Sikorsky Cypher
II: development of the Cypher (2001) Vertical Take-Off and Landing Experimental Aircraft
Vertical Take-Off and Landing Experimental Aircraft
- design and development of a hybrid VTOL/Conventional design

Other products[edit]

UAC TurboTrain
UAC TurboTrain
(1968)[25][25] Sikorsky ASPB Assault Support Patrol Boat (1969)[26]


H-34 Choctaw

Canadian CH-124 Sea King

CH-54 Tarhe

CH-53E Super Stallion

MH-53J Pave Low III

UH-60 Black Hawk

See also[edit]


Sikorsky, a Marvel Comics-owned character named after Sikorsky Aircraft.

Comparable major helicopter manufacturers:

AgustaWestland Airbus Helicopters Bell Helicopter Boeing Rotorcraft Systems MD Helicopters Russian Helicopters



^ "Daniel C. Schultz · Lockheed Martin". Lockheedmartin.com. Retrieved 2016-03-10.  ^ "Sikorsky Aircraft's big impact on region". Connecticut Post. Retrieved 20 July 2015.  ^ "About Sikorsky". Archived from the original on July 2, 2009. Retrieved June 5, 2009.  ^ Sikorsky, Igor (1944). The Story of the Winged-S. New York: Dodd, Mead & Company. p. 160. ISBN 9781258163556.  ^ Sikorsky, Igor (1944). The Story of the Winged-S. New York: Dodd, Mead & Company. p. 185. ISBN 9781258163556.  ^ a b Spenser 1998 ^ [1][dead link] ^ "Sikorsky's Acquisition of Schweizer is Complete" (PDF). Archived from the original (PDF) on April 10, 2008. Retrieved March 18, 2008.  ^ John Pike (2007-10-05). "Sikorsky opens HAWK WORKS™ completion center for military helicopters". Globalsecurity.org. Retrieved 2016-03-10.  ^ "Sikorsky breathes new life into PZL Mielec". Archived from the original on June 11, 2010. Retrieved June 29, 2010.  ^ "First S-70iTM Helicopter
Fully Assembled at Sikorsky Facility in Poland". Archived from the original on January 10, 2011. Retrieved June 29, 2010.  ^ a b c Sikorsky Press Release, 23 February 2009 ^ "Sikorsky to close N.Y. plant, cut 570 jobs". Connecticut Post. Retrieved 20 July 2015.  ^ " United Technologies
United Technologies
To Explore Strategic Alternatives For Its Sikorsky Aircraft
Sikorsky Aircraft
Business News United Technologies". Utc.com. 2015-11-03. Retrieved 2016-03-10.  ^ "UTC Weighs Sikorsky's Future". Defensenews.com. 2014-01-27. Retrieved 2016-03-10.  ^ Bruno, Michael (12 March 2015). "Sikorsky Not Profitable Enough For United Technologies". Aviation
Week & Space Technology. Archived from the original on 14 March 2015. Retrieved 14 March 2015.  ^ " Lockheed Martin
Lockheed Martin
to Acquire Sikorsky Aircraft
Sikorsky Aircraft
and Conduct Strategic Review of IT and Technical Services Businesses". Retrieved 20 July 2015.  ^ " Lockheed Martin
Lockheed Martin
receives final regulatory approval needed to close Sikorsky acquisition Vertical Magazine - The Pulse of the Helicopter Industry". Verticalmag.com. Retrieved 2016-03-10.  ^ " Lockheed Martin
Lockheed Martin
Completes Acquisition of Sikorsky Aircraft
Sikorsky Aircraft
· Lockheed Martin". Lockheedmartin.com. Retrieved 2016-03-10.  ^ "AHS Congratulates AeroVelo for Human Powered Helicopter
First Flight". AHS International
AHS International
– The Vertical Flight Technical Society. August 28, 2012. Retrieved November 9, 2016. The AeroVelo Atlas human-powered helicopter made its first flight on Tuesday August 28, 2012, as part of the AHS Igor I. Sikorsky Human Powered Helicopter Competition.  ^ Art Linden (June 2013). "S-68, Commercial Transport". www.sikorskyarchives.com. Sikorsky Archives. Retrieved 19 May 2017.  ^ "Sikorsky History - Part 4". Helis.com. Retrieved 2016-03-10.  ^ "American airplanes: Sikorsky". Aerofiles.com. 2009-04-26. Retrieved 2011-04-07.  ^ " Sikorsky S-71
Sikorsky S-71
profile for AAH". Retrieved 20 July 2015.  ^ a b "Turbo-Train". Archived from the original on March 29, 2010. Retrieved June 28, 2010.  ^ "Turbo-Trainaccessdate=June 28, 2010". Archived from the original on March 12, 2010. 


Spenser, Jay P. "Sikorsky". Whirlybirds, A History of the U.S. Helicopter
Pioneers. University of Washington Press, 1998. ISBN 0-295-97699-3.

External links[edit]

Wikimedia Commons has media related to Sikorsky Aircraft
Sikorsky Aircraft

Sikorsky homepage Sikorsky Timeline at the Helicopter
History Site Sikorsky Archives site "Patents owned by Sikorsky Aircraft
Sikorsky Aircraft
Corporation". US Patent & Trademark Office. Retrieved December 6, 2005. 

v t e

Sikorsky aircraft

Fixed-wing aircraft (company designations)

S-1 S-2 S-3 S-4 S-5 S-6 S-7 S-8 S-9 S-10 S-11 S-12 S-13 S-14 S-15 S-16 S-17 S-18 S-19 S-20 S-21 S-22 S-23 S-24 S-25 S-26 S-27 S-28 S-29-A S-30 S-31 S-32 S-33 S-34 S-35 S-36 S-37 S-38 S-39 S-40 S-41 S-42 S-43 VS-44 S-45

Fixed-wing aircraft (military designations)


Helicopters (company designations)

VS-300 (S-46) S-47 S-48 S-49 S-50 S-51 S-52 S-53 S-54 S-55 S-56 S-57 S-58 S-59 S-60 S-61 S-61L/N S-61R S-62 S-63 S-64 S-65 S-66 S-67 S-68 S-69 S-70 S-71 S-72 S-74 S-75 S-76 S-80 S-92 S-97 S-300 S-333 S-434

Helicopters (military designations)

SH-3 HH-3E/F R-4 H-5 H-6 H-18 H-19 H-34 CH-37 XH-39 HH-52A CH-53 CH-53E CH-53K CH-54 HLH HH-60G HH-60J MH-60R/S SH-60B/F SH-60J/K UH-60 VH-60 RAH-66 H-92 CH-124 CH-148

Experimental aircraft

Cypher Cypher II Firefly X2 XBLR-3 XV-2

v t e

Sikorsky Aircraft
Sikorsky Aircraft


PZL Mielec Schweizer Aircraft


Igor Sikorsky Schweizer brothers


UAC TurboTrain


Lockheed Martin United Technologies
United Technologies

v t e

Lockheed Martin

Divisions and subsidiaries


LM Aeronautics LM Canada LM Information Technology LM Missiles and Fire Control LM Rotary and Mission Systems LM Orincon LM Space Systems LM UK Sikorsky Aircraft Skunk Works


LM Global Training and Logistics LM Mission Systems and Sensors LM Systems Integration - Owego LM Transportation & Security Solutions Savi Technology

Joint ventures

United Space Alliance United Launch Alliance


Goodyear Airdock Knolls Atomic Power Laboratory LM Space Applications Laboratory Michoud Assembly Facility Sandia National Laboratories
Sandia National Laboratories

Active products

A2100 Aegis AeroText Asroc ATACMS Atlas V
Atlas V
rocket C-5 C-130J Space Shuttle External Fuel Tank Force Hawk F-16 F-22 F-35 GPS Block IIIA JASSM Javelin JCM Hellfire HIMARS MEADS Milstar MLRS MUOS Nimiq Orion spacecraft P-3 SBIRS THAAD Sniper XR T-50 Trident missile U-2

Category Commons

v t e

United Technologies


Pratt & Whitney UTC Aerospace Systems UTC Climate, Controls & Security


United Aircraft United Aircraft and Transport Corporation

Former subsidiaries

Clipper Windpower
Clipper Windpower
(2010-2012) Hamilton Standard
Hamilton Standard
(1929-1999) Hamilton Sundstrand
Hamilton Sundstrand
(1999-2012) Otis Elevating Railway
Otis Elevating Railway
(1892-1918) Otis Hovair
Otis Hovair
(1985-2014) Pratt & Whitney Rocketdyne (2005-2013) Schweizer Aircraft
Schweizer Aircraft
(2004-2012) Sikorsky Aircraft
Sikorsky Aircraft
(1929-2015) UTC Power
UTC Power
(1958-2012) Vought


Frederick Rentschler


Pratt & Whitney Measurement Systems SolarReserve

Coordinates: 41°15′0.36″N 73°5′49.74″W / 41.2501000°N 73.0971500°W / 41.2501000;