View source for Engineering:Sikorsky H-34

{{Short description|American helicopter}}
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{|{{Infobox aircraft begin
 |name = Sikorsky H-34 / S-58
 |image = File:Sikorsky S-58 landing (cropped).jpg
 |caption =A United States Army CH-34 
}}{{Infobox aircraft type
 |type = Helicopter
 |national origin= United States
 |manufacturer = Sikorsky Aircraft
 |designer =
 |first flight = 8 March 1954
 |introduced = 1954
 |retired =
 |status = In service
 |primary user = United States Army
 |more users = United States Navy<br />United States Marine Corps
 |produced = 1954–1970<ref name=" Sikorsky Product History" /> (Foreign production of derivatives and sub-types continued under license after the Sikorsky production ended.)<!--years in production, e.g., 1970–1999, if still in active use but no longer built-->
 |number built = 2,108{{citation needed|date=April 2022}}
 |developed from = [[Engineering:Sikorsky H-19 Chickasaw|Sikorsky H-19 Chickasaw]]
 |variants with their own articles =
 |developed into = [[Engineering:Westland Wessex|Westland Wessex]]
}}
|}

The '''Sikorsky H-34 "Choctaw"''' (company designation '''S-58''') is an American [[Engineering:Reciprocating engine|piston-engined]] military [[Engineering:Helicopter|helicopter]] originally designed by Sikorsky as an anti-submarine warfare (ASW) aircraft for the United States Navy. It has seen extended use when adapted to [[Engineering:Turboshaft|turbine power]] by the British licensee as the [[Engineering:Westland Wessex|Westland Wessex]] and Sikorsky as the later S-58T.

H-34s served, mostly as medium transports, on every continent with the armed forces of 25 countries. It saw combat in Algeria, the Dominican Republic, Nicaragua, and throughout [[Place:Southeast Asia|Southeast Asia]]. Other uses included saving flood victims, recovering astronauts, fighting fires, and carrying presidents. It was the last piston-engined helicopter to be operated by the United States Marine Corps, having been replaced by turbine-powered types such as the UH-1 Huey and CH-46 Sea Knight. A total of 2,108 H-34s were manufactured between 1953 and 1970.<ref>[http://www.uswarplanes.net/h34.html "H-34."] {{Webarchive|url=https://web.archive.org/web/20161211010522/http://www.uswarplanes.net/h34.html |date=2016-12-11 }} ''Warplanes.net.'' Retrieved: 30 December 2010.</ref>

==Development==
[[File:HSS HS-831 sonar NAN6-60.jpg|thumb|A U.S. Navy HSS-1 with dipping sonar deployed, in 1960.]]
[[File:CH-37C and UH-34D USMC in flight 1964.JPEG|thumb|CH-37C and UH-34D of the United States Marine Corps.]]

The Sikorsky S-58 was developed as a lengthened and more powerful version of the Sikorsky Model S-55, or [[Engineering:Sikorsky H-19 Chickasaw|UH-19 Chickasaw]], with a similar nose, but with a [[Engineering:Conventional landing gear|tail-dragger]] rear fuselage and landing gear, rather than the high-tail, 4-post pattern. It retained the nose-mounted radial reciprocating engine with the drive shaft passing through the [[Engineering:Cockpit|cockpit]] placed high above the cargo compartment.

The aircraft first flew on 8 March 1954. The first production aircraft was ready in September and entered in service for the United States Navy initially designated '''HSS-1 Seabat''' (in its anti-submarine configuration) and '''HUS-1 Seahorse''' (in its utility transport configuration) under the U.S. Navy designation system for U.S. Navy, United States Marine Corps (USMC) and United States Coast Guard (USCG) aircraft. The U.S. Army and Marine Corps, respectively, ordered it in 1955 and 1957. Under the United States Army's aircraft designation system, also used by the {{wipe|United States Air Force}}, the helicopter was designated '''H-34'''. The U.S. Army also applied the name '''Choctaw''' to the helicopter. In 1962, under the new unified DoD aircraft designation system, the Seabat was redesignated '''SH-34''', the Seahorse as the '''UH-34''', and the Choctaw as the '''CH-34'''.

Roles included utility transport, anti-submarine warfare, search and rescue, and [[Social:Very important person|VIP]] transport. In its standard configuration, transport versions could carry 12 to 16 troops, or eight [[Medicine:Stretcher|stretcher]] cases if utilized in the MedEvac role, while VIP transports carried significantly fewer people in much greater comfort.

A total of 135 H-34s were built in the US and assembled by Sud-Aviation in France, 166 were produced under licence in France by Sud-Aviation for the French Air Force, Navy and Army Aviation (ALAT).

The CH-34 was also built and developed under license from 1958 in the {{wipe|United Kingdom}} by Westland Aircraft as the [[Engineering:Turboshaft|turboshaft]] engined [[Engineering:Westland Wessex|Wessex]] which was used by the Royal Navy and {{wipe|Royal Air Force}}. The RN Wessex was fitted out with weapons and ASW equipment for use in an antisubmarine role. The RAF used the Wessex, with turboshaft engines, as an air/sea rescue helicopter and as troop transporter. Wessexes were also exported to other countries and produced for civilian use.

==Operational history==

===Algerian War===
The helicopters used by the French Army Light Aviation (ALAT), including the Sikorsky H-34, aggregated over 190,000 flying hours in Algeria (over 87,000 for the H-21 alone) and helped to evacuate over 20,000 French combatants from the combat area, including nearly 2,200 at night. By the time the war in Algeria had ended, eight officers and 23 non-commissioned officers from ALAT had been killed.

The use of armed helicopters during the Algerian War, coupled with helicopter transports which can insert troops into enemy territory, gave birth to some of the modern tactics of airmobile warfare.<ref>[http://histoire-militaire.pagesperso-orange.fr/aviation/helicoalgerie.htm helicopters during the war in Algeria], Military History</ref>

===Vietnam War===
[[File:Sikorsky HUS-1G USCG at Anacostia 1960.jpg|thumb|A U.S. Coast Guard HUS-1G in 1960.]]
French evaluations on the reported ground fire vulnerabilities of the CH-34 may have influenced the U.S. Army's decision to deploy the [[Engineering:Piasecki H-21|CH-21 Shawnee]] to Vietnam instead of the CH-34, pending the introduction into widespread service of the Bell UH-1 Iroquois. U.S. Army H-34s did not participate in Vietnam, and did not fly in the assault helicopter role, but a quantity were supplied to the {{wipe|Republic of Vietnam Air Force}} (RVNAF). These saw little use due to a lack of spare parts and maintenance.<ref name="Mesko">Mesko 1984, pp. 4–6.</ref>

[[File:UH-34D door gun USMC Vietnam 1965.JPEG|thumb|U.S. Marine Corps UH-34Ds over Mekong Delta.]]
[[File:HUS-1s HMM-362 in flight Vietnam 1962.jpg|thumb|U.S. Marine Corps UH-34Ds over Vietnam, 1965.]]
Its higher availability and reliability due to its simplicity compared to the newer helicopters led Marines to ask for it by name. The phrases "give me a HUS", "get me a HUS" and "cut me a HUS" entered the U.S. Marine Corps vernacular, being used even after the type was no longer in use to mean "help me out".<ref name="Fails">Fails 1995, p. 9.</ref>

USMC H-34s were also among the first [[Engineering:Armed helicopter|helicopter gunships]] trialled in theatre, being fitted with the Temporary Kit-1 (TK-1), comprising two [[Engineering:M60 machine gun|M60C machine guns]] and two 19-shot 2.75 inch rocket pods. The operations were met with mixed enthusiasm, and the armed H-34s, known as "Stingers" were quickly phased out. The TK-1 kit would form the basis of the TK-2 kit used on the UH-1E helicopters of the USMC.

An H-34 was featured in the famous early-Vietnam War Time-Life photo essay "One Ride With Yankee Papa 13", photographer Larry Burrows, which depicted stages of a disastrous combat mission in which several crew were wounded or killed.<ref>{{cite magazine |last=Burrows |first=Larry |date=16 April 1965 |title=One Ride With Yankee Papa 13 |url=https://www.life.com/history/vietnam-photo-essay-larry-burrows-one-ride-with-yankee-papa-13/ |magazine=Life |location=24-34C  |access-date=28 January 2023}}</ref>

===Post-Vietnam War===
The H-34 remained in service with United States Army and Marine Corps aviation units into the late 1960s; at this time it was also standard equipment in Marine Corps Reserve, Army Reserve and Army National Guard aviation units, eventually being replaced by the UH-1 Iroquois utility helicopter. Sikorsky terminated all production activities in 1968, a total of 1,821 having been built.<ref name="janes">Endres, Günter G. ''Jane's Helicopter Markets and Systems''. Coulsdon, Surrey, UK: Jane's Information Group, 1996. {{ISBN|978-0-7106-1363-9}}.</ref> All H-34 helicopters were retired from service in the U.S. military by the early 1970s; the type having the distinction of being the last piston-engined helicopter to be operated by  the Marine Corps. On 3 September 1973, the last flight of a USMC UH-34 occurred as Bureau Number 147191 which had been formally assigned to Headquarters Squadron, FMF Pacific was flown from Quantico, Virginia to MCAS New River to be placed on static display.<ref name="Fails_127">Fails 1995, p. 127.</ref><ref>[http://www.marines.mil/Portals/59/Publications/Marines%20and%20Helicopters%201962-1973%20%20PCN%2019000307400_2.pdf MARINES AND HELICOPTERS, 1962–1973], pp.127–128, retrieved 9 December 2014.</ref>

===France===
France purchased an initial batch of 134 Choctaws; these were shipped in kit-form from the United States and locally assembled by Sud-Aviation. Later, a further 166 were domestically manufactured by Sud-Aviation; these were operated by the French Army Light Aviation (Army), French Naval Aviation (Navy) and {{wipe|French Air Force}}.

[[File:Wessex at Ascension Island 1982..JPG|thumb|Wessex at Ascension Island, 1982]]

===United Kingdom===
{{Main|Engineering:Westland Wessex}}
The Wessex was used as an anti-submarine and utility helicopter with the Royal Navy and as a transport and search and rescue helicopter with the Royal Air Force. British Wessex saw action in several conflicts: Falklands, Oman, Borneo, Aden, etc.

===South Vietnam===
[[File:Sikorsky H-34s VNAF at Tan Son Nhut AB.jpg|thumb|RVNAF CH-34As at Tan Son Nhut.]]
[[File:H-34 in Vietnam.jpg|thumb|USMC helicopter in Vietnam.]]
[[File:Sikorsky S-58BT N59330 NYH 34th NY 17.08.87 edited-3.jpg|thumb|right|S-58T of New York Helicopter at 34th Street Helicopter pad in 1987]]
Used by RVNAF 219th Squadron to insert MACV-SOG reconnaissance teams into Laos.<ref>Across The Fence, John Stryker Meyer</ref>
The H-34 was the primary RVNAF helicopter until replaced by the Bell UH-1 Huey.<ref>[https://web.archive.org/web/20150925061100/http://www.dtic.mil/srch/doc?collection=t3&id=ADA439993 ''The Vietnamese Air Force, 1951–1975. An Analysis of Its Role in Combat and Fourteen Hours at Koh Tang. Volume 3, USAF Southeast Asia monograph series 4 and 5.''] Washington D.C.: Office of Air Force History, 1985.</ref>

===Israel===
[[File:SikorskyS58Israel.jpg|thumb|{{wipe|Israeli Air Force}} Sikorsky S-58 (1967)]]
Israeli S-58s flew numerous combat missions after the end of the Six-Day War; these missions were mainly against Palestinians infiltrating Israel or against their bases in Jordan. On 21 March 1968, various S-58s participated in the Battle of Karameh, bringing Israeli troops in and out of the theatre as well as evacuating the wounded. This was the last operation of the S-58 as it was retired shortly later, having been replaced by the newer Bell 205 and Aérospatiale Super Frelon.<ref>Gunston 1982, p. 92.</ref>

===Civilian use===
[[File:S-58TC-GLOG.JPG|thumb|right|Civil S-58T powered by a Pratt & Whitney Canada PT6T Twin-Pac turbine power plant]]
The H-34's lift capacity was just sufficient to lift a [[Astronomy:Project Mercury|Mercury]] space capsule. In 1961, the hatch of [[Engineering:Mercury-Redstone 4|Mercury-Redstone 4]] was prematurely detached and the capsule was filled with seawater. The extra weight was too much for the H-34 and the capsule, ''Liberty Bell 7'', was emergency released and sank in deep water,<ref name="astronautix">Wade, Mark. [https://web.archive.org/web/20090429132855/http://www.astronautix.com/flights/merrymr4.htm "Mercury MR-4."] ''astronautix.com,'' 29 April 2009. Retrieved (from archive): 26 July 2011.</ref> remaining on the ocean floor [[Engineering:Mercury-Redstone 4#Recovery of Liberty Bell 7|until 1999]].

Sikorsky set up a production line in 1970 to remanufacture existing S-58 aircraft into the S-58T configuration, replacing the R-1820 engine with a pair of Pratt & Whitney Canada PT6T-3 Twin-Pac [[Engineering:Turboshaft|turboshaft]]s; Sikorsky obtained a Federal Aviation Administration [[Engineering:Type certificate|type certificate]] for the conversion in April 1971. The conversion enhanced safety, allowing the aircraft to continue flight after an engine failure, and greatly improved its [[Engineering:Hot and high|hot and high]] performance; whereas the R-1820 could only provide full power up to an altitude of {{cvt|700|ft|m}}, the paired PT-6s provide full power up to {{cvt|6000|ft|m}}, and an S-58T can fly at maximum gross weight up to {{cvt|5000|ft|m}}. The type certificate for the S-58T was sold to California Helicopter International in 1981.<ref>{{cite web|title= Sikorsky Archives / S-58  |last1= Devine |first1= Vinny |url= https://www.sikorskyarchives.com/S-58%20%20HELICOPTER.php |date= June 2011 |website= Sikorsky Product History |publisher= Igor Sikorsky Historical Archives |access-date= 29 July 2022}}</ref>

In the late 1980s and early 1990s, S-58T helicopters were operated by New York Helicopters in scheduled passenger airline service between JFK International Airport and East 34th Street Heliport, {{wipe|New York City}}.<ref>Brown, Allan. [http://www.airliners.net/open.file?id=0235200&WxsIERv=Fvxbefxl%20F-58RG&Wm=0&WdsYXMg=Arj%20Lbex%20Uryvpbcgre&QtODMg=Arj%20Lbex%20-%20Rnfg%2034gu%20Fgerrg%20Uryvcbeg%20%286A5%29&ERDLTkt=HFN%20-%20Arj%20Lbex&ktODMp=1995&BP=1&WNEb25u=Nyna%20Oebja&xsIERvdWdsY=A47781&MgTUQtODMgKE=&YXMgTUQtODMgKERD=1735&NEb25uZWxs=2002-05-12%2000%3A00%3A00&ODJ9dvCE=&O89Dcjdg=58-0855&static=yes&width=1028&height=669&sok=JURER%20%20%28ert%20%3D%20%27A47781%27%29%20%20BEQRE%20OL%20cubgb_vq%20QRFP&photo_nr=1&prev_id=&next_id=0211117 "S-58ET from New York Helicopter."] ''airliners.net.'' Retrieved: 17 January 2011.</ref>

In the early 1970s, Orlando Helicopter Airways developed a novel civil conversion of the S-55/H-19, the ''Heli-Camper'', a [[Engineering:Campervan|campervan]]-like conversion—featuring a built-in mini-kitchen and sleeping accommodations for four.<ref>{{cite web|title= S-55/H-19/HO4S/HRS Helicopter  |last1= Devine |first1= Vinny |url= http://www.sikorskyarchives.com/S-55.php |date= November 2012 |website= Sikorsky Product History |publisher= Igor Sikorsky Historical Archives |access-date= 7 July 2015}}</ref> Later in that decade, Orlando developed a larger version based on the S-58, and participated in a joint effort with popular American recreational vehicle (RV) manufacturer [[Company:Winnebago Industries|Winnebago Industries]] to market both aircraft as the '''Winnebago Heli-Home'''. The S-58 version featured a larger kitchenette, sleeping accommodations for six, a minibar, and an entertainment system; optional floats were offered for [[Engineering:Amphibious aircraft|amphibious]] operations. The aircraft were featured in several American popular magazines and reportedly drew large crowds at RV shows and dealerships, but their high purchase price together with rising 1970s fuel prices resulted in very limited sales; production is not well documented, but is estimated at only six or seven of the S-55 and S-58 versions combined.<ref name=Winnebago>{{cite web|url=https://www.smithsonianmag.com/air-space-magazine/the-flying-winnebago-3672/ |title=The Flying Winnebago |last=Chiles |first=James R. |work=Air & Space Magazine |date=January 2012 |access-date=July 28, 2022}}</ref>

==Variants==
;H-34A
:U.S. Army version of the HSS-1 powered by a 1,525 hp R-1820-84, re-designated CH-34A in 1962, 359 built and 21 transferred from the U.S. Navy.
;JH-34A
:Designation for H-34A used for weapon tests.
;VH-34A
:Staff transport conversions of H-34A.
;H-34B
:H-34As converted with detail changes, became CH-34B in 1962.
;H-34C
:H-34B design with detail changes converted from H-34As, became CH-34C in 1962.
;JH-34C
:Designation for CH-34C used for weapon tests.
;VH-34C
:Staff transport conversions of CH-34C.
;HH-34D
:Designation applied to aircraft given USAF serials to be transferred under MAP and MDAP.
;LH-34D
:HUS-1L re-designated in 1962
;UH-34D
:HUS-1 re-designated in 1962 and 54 new build.
;VH-34D
:HUS-1Z re-designated in 1962
;UH-34E
:HUS-1A re-designated in 1962
;HH-34F
:HUS-1G re-designated in 1962
;YSH-34G
:YHSS-1 re-designated in 1962
;SH-34G
:HSS-1 re-designated in 1962
;SH-34H
:HSS-1F re-designated in 1962
;YSH-34J

[[File:SH-34 CVS-9 1962.jpg|thumb|right|SH-34Js on the USS ''Essex'' in 1962]]
[[File:VH-34D at the White House 1961.jpg|thumb|right|A VH-34D presidential helicopter (BuNo 147201) on the South Lawn of the White House in 1961]]

:YHSS-1N re-designated in 1962
;SH-34J
:HSS-1N re-designated in 1962
;UH-34J
:SH-34J without ASW equipment for cargo and training purposes.
;HH-34J
:Ex-USN UH-34Js operated by the U.S. Air Force
;VH-34J
:Staff transport conversions of SH-34J.
;XHSS-1 Seabat
:Three Sikorsky S-58s for evaluation by the U.S. Navy, re-designated YHSS-1 then YSH-34G in 1962.
;HSS-1 Seabat
:Production Anti-Submarine model for the U.S. Navy, re-designated SH-34G in 1962, 215 built
;HSS-1F Seabat
:One HSS-1 re-engined with two YT-58-GE as a flying test bed, re-designated SH-34H in 1962.
;YHSS-1N Seabat
:One HSS-1 converted as the HSS-1N prototype, re-designated YSH-34J in 1962.
;HSS-1N Seabat
:Night/Bad weather version of the HSS-1 with improved avionics and autopilot, re-designated SH-34J in 1962, 167 built (an addition 75 HSS-1 airframes were built to CH-34C standard for West Germany).
;HUS-1 Seahorse
:Utility transport version of the HSS-1 for the U.S. Marine Corps, re-designated UH-34D in 1962, 462 built
;HUS-1A Seahorse
:Forty HUS-1s fitted with amphibious pontoons, re-designated UH-34E in 1962.
;HUS-1G Seahorse
:United States Coast Guard version of the HUS-1, re-designated HH-34F in 1962, six built.
;HUS-1L Seahorse
:Four HUS-1s converted for Antarctic operations with VXE-6, re-designated LH-34D in 1962.
;HUS-1Z Seahorse
:Seven HUS-1s fitted with VIP interior for the Executive Flight Detachment, re-designated VH-34D in 1962.
;CH-126
:Canadian military designation for the S-58B.
;S-58A
:Commercial designation for basic cargo variant, certified in 1956
;S-58B
:Commercial designation for improved cargo variant, certified in 1956
;S-58C
:Commercial passenger transport/airliner version, certified in 1956
[[File:S-58T stationed in Fate, TX performing a helicopter lift operation.jpg|thumb|An S-58T performing an external load operation in Dallas, Texas.]]
;S-58D
:Commercial airliner/freighter version, certified in 1961
;S-58E
:Certified in 1971
;S-58F
:Certified in 1972 an increased maximum weight variant of the S-58B.
;S-58G
:Certified in 1972 an increased maximum weight variant of the S-58C.
;S-58H
:Certified in 1972 an increased maximum weight variant of the S-58D.
;S-58J
:Certified in 1972 an increased maximum weight variant of the S-58E
;S-58T
:Commercial conversion to turboshaft power using Pratt & Whitney Canada PT6T-3 Twin-Pac turboshaft with special nose cowling featuring distinctive twin rectangular air intakes, designations relate to original model:
;S-58BT
:Turboshaft-powered conversion of the S-58B
;S-58DT
:Turboshaft-powered conversion of the S-58D
;S-58ET
:Turboshaft-powered conversion of the S-58E
;S-58FT
:Turboshaft-powered conversion of the S-58F
;S-58HT
:Turboshaft-powered conversion of the S-58H
;S-58JT
:Turboshaft-powered conversion of the S-58J
;Orlando Heli-Camper / Winnebago Heli-Home
:RV conversion by Winnebago Industries and Orlando Helicopter, fitted with a Wright Cyclone R-1820-24 engine<ref name=Winnebago/>
;Orlando Airliner
:Commercial conversion. 18-seat passenger transport helicopter.
;[[Engineering:Westland Wessex|Westland Wessex]] 
: Licence production and development in the {{wipe|United Kingdom}}.

==Operators==
; {{ARG}} 
*{{wipe|Argentine Air Force}}<ref>[http://www.helis.com/database/modelorg/1164/ "H-58."] ''Fuerza Aerea Argentina''. Retrieved: 7 March 2013.</ref> 
*Argentine Naval Aviation<ref>{{citation |url=http://www.flightglobal.com/pdfarchive/view/1968/1968%20-%201204.html |magazine=Flight International |title=World Air Forces 1968  |date=11 July 1968 |via=Flight Global Archive |access-date=1 March 2013 |page=48}}.</ref>
; {{BEL}} 
*{{wipe|Belgian Air Force}}<ref name="World Air Forces 1968 pg. 49">{{citation |url=http://www.flightglobal.com/pdfarchive/view/1968/1968%20-%201205.html |magazine=Flight International |title=World Air Forces 1968  |date=11 July 1968 |via=Flight Global Archive |access-date=1 March 2013 |page=49 |archive-url=https://web.archive.org/web/20190712181623/https://www.flightglobal.com/pdfarchive/view/1968/1968%20-%201205.html |archive-date=12 July 2019 }}</ref>
*Belgian Navy<ref name="World Air Forces 1968 pg. 49" />
; {{BRA}} 
*Brazilian Navy<ref name="World Air Forces 1968 pg. 49" />
; {{CAN}} 
*{{wipe|Royal Canadian Air Force}}<ref>Griffin, 1969, p.17</ref>
*Canadian Armed Forces<ref name="World Air Forces 1968 pg. 49" />
; {{CHL}} 
*Chilean Navy<ref>[http://www.helis.com/database/cn/13396/ "SH-34J."] ''Armada de Chile''. Retrieved: 7 March 2013.</ref><ref>[http://www.airliners.net/photo/Chile---Navy/Sikorsky-HSS-1N-(S-58A)/1854999/L/&sid=03bb603eb478b4a0392904e724aa0948 "Sikorsky-HSS-1N-(S-58A)."] ''Demand media''. Retrieved: 7 March 2013.</ref>
; {{CRI}} 
*Ministry of Public Security<ref>[http://www.flightglobal.com/pdfarchive/view/1981/1981%20-%202504.html "World's Air Forces 1981, p. 332.] ''flightglobal.com''. Retrieved: 7 March 2013.</ref>
; {{FRA}} 
*French Army<ref name=" World Air Forces 1968 pg. 51">{{citation |url=http://www.flightglobal.com/pdfarchive/view/1968/1968%20-%201207.html |magazine=Flight International |title=World Air Forces 1968  |date=11 July 1968 |via=Flight Global Archive |access-date=1 March 2013 |page=51 |archive-url= https://web.archive.org/web/20190712192225/https://www.flightglobal.com/pdfarchive/view/1968/1968%20-%201207.html|archive-date= 12 July 2019|url-status=dead}}</ref>
*French Navy<ref>[http://www.flightglobal.com/pdfarchive/view/1971/1971%20-%201043.html "World Air Forces 1971, p. 928."] ''flightglobal.com''. Retrieved: 7 March 2013.</ref> 
; {{FRG}} 
*{{wipe|German Air Force}}<ref name=" World Air Forces 1968 pg. 51" />
*German Army<ref name=" World Air Forces 1968 pg. 51" />
*German Navy<ref name=" World Air Forces 1968 pg. 51" />
; {{HTI}} 
*Haitian Air Corps<ref>[http://www.flightglobal.com/pdfarchive/view/1981/1981%20-%202518.html "World's Air Forces 1981, p. 346."] ''flightglobal.com''. Retrieved: 7 March 2013.</ref>
; {{IDN}} 
*{{wipe|Indonesian Air Force}}<ref>[http://www.flightglobal.com/pdfarchive/view/2004/2004-09%20-%202358.html "World's Air Forces 2004, p. 65."] ''flightglobal.com''. Retrieved: 7 March 2013.</ref>
; {{ITA}} 
*{{wipe|Italian Air Force}}<ref name="Flight1968p52">{{citation |url=http://www.flightglobal.com/pdfarchive/view/1968/1968%20-%201208.html |magazine=Flight International |title=World Air Forces 1968  |date=11 July 1968 |via=Flight Global Archive |access-date=7 March 2013 |page=52}}</ref> 
; {{ISR}} 
*{{wipe|Israeli Air Force}}<ref>[http://www.flightglobal.com/pdfarchive/view/1968/1968%20-%201208.html "World Air Forces 1968, p. 52 (m)."] ''flightglobal.com''. Retrieved: 1 March 2013.</ref>
; {{JPN}} 
*Japan Maritime Self-Defense Force<ref>[http://www.flightglobal.com/pdfarchive/view/1971/1971%20-%201049.html "=World Air Forces 1971, p. 932."] ''flightglobal.com''. Retrieved: 7 March 2013.</ref>
;{{flag|Khmer Republic}} 
*{{wipe|Khmer Air Force}}
; {{flagicon|Laos|1952}} Kingdom of Laos
*{{wipe|Royal Lao Air Force}}<ref>[http://www.flightglobal.com/pdfarchive/view/1968/1968%20-%201209.html "World Air Forces 1968, p. 53."] ''flightglobal.com''. Retrieved: 1 March 2013.</ref>
; {{NLD}} 
*Royal Netherlands Navy<ref>{{citation |url=http://www.flightglobal.com/pdfarchive/view/1968/1968%20-%201210.html |magazine=Flight International |title=World Air Forces 1968  |date=11 July 1968 |via=Flight Global Archive |access-date=1 March 2013 |page=54}}</ref>
; {{NIC}} 
*{{wipe|Nicaraguan Air Force}}<ref>[http://www.flightglobal.com/pdfarchive/view/1981/1981%20-%202534.html "World's Air forces 1981, p. 362."] ''flightglobal.com''. Retrieved: 7 March 2013.</ref>
; {{Flag|Philippines|1936}} 
* {{wipe|Philippine Air Force}}
; {{flag|South Vietnam}}
*{{wipe|Republic of Vietnam Air Force}}<ref>[http://www.flightglobal.com/pdfarchive/view/1968/1968%20-%201216.html "World Air Forces 1968, p. 60."]''flightglobal.com''. Retrieved: 1 March 2013.</ref> 
; {{ROC}} 
*Republic of China Army<ref>[http://www.flightglobal.com/pdfarchive/view/1981/1981%20-%202549.html "World's Air Forces 1981, p. 377."] ''flightglobal.com''. Retrieved: 7 March 2013.</ref>
; {{THA}} 
*{{wipe|Royal Thai Air Force}}<ref>{{citation |url=http://www.flightglobal.com/pdfarchive/view/1968/1968%20-%201211.html |magazine=Flight International |title=World Air Forces 1968  |date=11 July 1968 |via=Flight Global Archive |access-date=7 March 2013 |page=55}}</ref>
; {{USA}} 
* Air America<ref>[http://www.utdallas.edu/library/specialcollections/hac/cataam/Leeker/aircraft/uh341.pdf "Air America: Sikorsky UH-34s (1st series)."] ''utdallas.edu''. Retrieved: 10 August 2014.</ref>
*{{wipe|United States Air Force}}<ref>[http://www.helis.com/database/modelorg/1053/ "US Air Force H-34."] ''Helicopter History Site''. Retrieved: 7 March 2013.</ref>
*United States Army<ref name=" Sikorsky Product History">[http://www.sikorskyarchives.com/S-58%20%20HELICOPTER.php "S58 (CH-34, UH-34, VH-34, SH-34, HH-34, S-58A, C, D, S-58T)."] ''Sikorsky Product History''. Retrieved: 5 March 2013.</ref>
*United States Marine Corps<ref name=" Sikorsky Product History" />
*United States Navy<ref name=" Sikorsky Product History" />
*United States Coast Guard<ref name=" Sikorsky Product History" /><ref>[http://www.helis.com/database/org/us_united_states_coast_guard/History/2 "USCG HH-34.'] ''USCG History''. Retrieved: 7 March 2013.</ref>
; {{URY}} 
*Uruguayan Navy<ref>[http://www.flightglobal.com/pdfarchive/view/1987/1987%20-%202554.html "World's Air Forces 1987, p. 104."] ''flightglobal.com''. Retrieved: 7 March 2013.</ref>

==Accidents and incidents==
*27 July 1960 Chicago Helicopter Airways Flight 698 a S-58C registered N879 crashed into Forest Home Cemetery, Forest Park, Illinois, United States with the loss of 11 passengers and two crew. The investigation concluded that the helicopter became uncontrollable as a result of structural disintegration in flight caused by a fatigue failure of the main [[Engineering:Helicopter rotor|rotor]] blade.<ref>"CAA 429 World Airline Accident Summary with reference to Civil Aeronautics Board Aircraft Accident Report SA-357." ''United Kingdom CAA Document.''</ref>
*14 November 1971 Sikorsky SH-34J, A-062 of the Uruguayan Navy lost control after trying to lift a ground vehicle in an airshow, the helicopter fell to the ground hitting another Sikorsky SH-34J Helicopter. The broken blades flew directly into the audience of the airshow killing 8 people and severely injuring and mutilating at least 40 more. Due to the unstable political situation of the country at the time, no investigation followed the accident. Several years later, many irregularities came to light: The helicopter condition was not good when it was purchased by the Uruguayan Navy, fuel used was not appropriate, temperature on the day of the accident was too high to attempt a heavy lift, and the co-pilot of the helicopter was a fixed wing pilot with no experience in rotary wing aircraft.<ref>[https://www.youtube.com/watch?v=mJ61AqZIrdA"Hélices"] ''Prize Awarded Documentary''</ref>
*10 July 2002 Sikorsky S-58ET, N580US (S/N 58-1673, built 1963), struck power transmission lines with its tailwheel, ripping the aircraft in two, over Brookville Lake, Indiana. One crew member was killed; the other two crew members were rescued by boaters. The aircraft was operated by Midwest Helicopter Airways of Hinsdale, Illinois, and registered to Midwest Truxton International of Burr Ridge, Illinois. "Based on interviews with witnesses and the surviving pilots, there was no indication of any mechanical failure," said SGT. Steve Comer of the Indiana State Police. NTSB Accident Report #CHI02FA189 <ref>[http://articles.chicagotribune.com/2002-07-12/news/0207120256_1_helicopter-crash-sikorsky-s58t-pilot  Chicago Tribune: Helicopter crash kills Woodridge man]</ref>
*13 March 2011 Sikorsky S-58ET, N33602, suffered an engine failure, descended and veered off the side of an office building in El Segundo, California, while lifting an external air conditioning unit from the roof. The commercial pilot was seriously injured, the helicopter was substantially damaged and consumed by a post-impact fire. The helicopter was registered to Heli Flight, Inc., and operated by Aris Helicopters.<ref>[https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/78540/pdf National Transportation Safety Board Aviation Accident Final Report], retrieved 19 August 2022</ref>

==Aircraft on display==
[[File:Sikorsky UH-34D Seahorse.jpg|right|thumb|Sikorsky UH-34D Seahorse in National Air and Space Museum]]
;Canada
* 130761 - H34C in storage at the Reynolds-Alberta Museum in Wetaskiwn, Alberta.<ref>{{cite web |title=Aviation |url=https://reynoldsmuseum.ca/aviation |website=Reynolds Museum |publisher=Government of Alberta |access-date=1 December 2019}}</ref>

;Chile
* Naval 52 – SH-34J on static display at Viña del Mar Airport in Viña del Mar, Valparaíso. This airframe was the second of two received by the Chilean Navy and was exhibited for the first time after restoration at Exponaval 2014.<ref>{{cite web|last1=Romero|first1=Álvaro|title=Presentaron al Sikorsky SH-34J Seabat Naval 52|url=http://modocharlie.com/2014/12/presentaron-sikorsky-sh-34j-seabat-naval-52|website=ModoCharlie|access-date=29 October 2016|language=es|date=8 December 2014}}</ref> It was previously on display at Alberto Widmer High School.<ref>{{cite web|last1=Romero|first1=Álvaro|title=Ilustre desconocido v3.0|url=http://modocharlie.com/2008/08/ilustre-desconocido-v30|website=ModoCharlie|access-date=29 October 2016|language=es|date=August 2008}}</ref>

;France
* HSS-1, No. 182, is on display at the Base d'aéronautique navale d'Hyères, the military part of the Toulon–Hyères Airport in France.<ref>[http://www.avionslegendaires.net/2012/07/actu/le-sikorsky-de-palyvestre/ "Le Sikorsky de Palyvestre."] ''Avions-légendaire.net'', 29 July 2012. Retrieved: 22 August 2014. Retrieved: 13 March 2015.</ref> Serving until 1977 with 31F squadron, it was one of the last operational H-34's in French Naval Aviation. Now restored, No. 182 is displayed in the typical navy blue color of the French navy's helicopters of this time period.<ref>[http://celag.free.fr/helicos/reliques/H-34.htm "Les Sikorsky H-34 et HSS-1."] ''Les hélicoptères anciens en France'', 22 August 2014. Retrieved: 13 March 2015.</ref>

;Germany
* 80+73 – SH-34G on static display at the Deutsches Museum in Munich, Bavaria.<ref>{{cite web|title=Sikorsky S-58 (H-34 G)|url=http://www.deutsches-museum.de/en/flugwerft/collections/helicopters/s-58|website=Deutsches Museum|access-date=29 October 2016|archive-date=29 October 2016|archive-url=https://web.archive.org/web/20161029225311/http://www.deutsches-museum.de/en/flugwerft/collections/helicopters/s-58/|url-status=dead}}</ref><ref>{{cite web|title=Airframe Dossier - SikorskyS-58 / H-34 / HSS / Wessex, s/n 80+73 Marineflieger, c/n 58-1557|url=http://aerialvisuals.ca/AirframeDossier.php?Serial=15009|website=Aerial Visuals|publisher=AerialVisuals.ca|access-date=29 October 2016}}</ref>
* 81+09 – H-34 GIII on static display at the Hubschraubermuseum Bückeburg in Bückeburg, Lower Saxony.<ref>{{cite web|title=Sikorsky S-58 (H-34 GIII)|url=http://www.hubschraubermuseum.de/exponate/einrotorige-hubschrauber/sikorsky-s-58-h-34-giii/?lang=en|website=Das Hubschraubermuseum Buckeburg|access-date=29 October 2016|archive-date=24 May 2020|archive-url=https://web.archive.org/web/20200524034928/http://www.hubschraubermuseum.de/exponate/einrotorige-hubschrauber/sikorsky-s-58-h-34-giii/?lang=en|url-status=dead}}</ref><ref>{{cite web|title=Airframe Dossier - SikorskyS-58 / H-34 / HSS / Wessex, s/n 81+09 Heeresfliegertruppe, c/n 58-1679|url=http://aerialvisuals.ca/AirframeDossier.php?Serial=73955|website=Aerial Visuals|publisher=AerialVisuals.ca|access-date=29 October 2016}}</ref>
* 58-0356 – S-58C on static display at the Auto & Technik Museum Sinsheim in Sinsheim, Baden-Württemberg.<ref>{{cite web|title=Airframe Dossier - Sikorsky S-58C, s/n B-11 FABe, c/n 58-0356, c/r D-HAUF|url=http://aerialvisuals.ca/AirframeDossier.php?Serial=28138|website=Aerial Visuals|publisher=AerialVisuals.ca|access-date=29 October 2016}}</ref>
'''Indonesia'''

* [[File:UH-34-Sikorsky.jpg|thumb|Indonesian Air Force UH-34 number H-3402 inside Dirgantara Mandala Museum in Yogyakarta.]]H-3402 - UH-34 on static display at Dirgantara Mandala Museum in [[Place:Yogyakarta|Yogyakarta]].<ref>{{Cite web |title=H-5802 {{!}} Sikorsky UH-34D Seahorse {{!}} Indonesia - Air Force {{!}} Thimo van Dijk |url=https://www.jetphotos.com/photo/8964648 |access-date=2022-03-02 |website=JetPhotos |language=en}}</ref><ref>{{Cite web |date=2015-05-21 |title=Sikorsky S-58T Twin Pack: Kiprah Helikopter "Codot" TNI AU |url=https://www.indomiliter.com/sikorsky-s-58t-twin-pack-kiprah-helikopter-codot-tni-au/ |access-date=2022-03-02 |website=Indomiliter.com |language=en-US}}</ref>
* H-3404 - S-58T on static display outside Dirgantara Mandala Museum in Yogyakarta.<ref>{{Cite web |title=H-3404 {{!}} Sikorsky S-58T {{!}} Indonesia - Air Force {{!}} Arjun Sarup |url=https://www.jetphotos.com/photo/9687427 |access-date=2022-03-02 |website=JetPhotos |language=en}}</ref><ref>{{Cite web |date=2017-11-23 |title=Ada Helikopter "Codot" di Museum Dirgantara Mandala Yogyakarta |url=https://www.indomiliter.com/ada-helikopter-codot-di-museum-dirgantara-mandala-yogyakarta/ |access-date=2022-03-02 |website=Indomiliter.com |language=en-US}}</ref>
* H-3415 - S-58T on static display in front of Atang Senjaya airbase in Bogor.<ref>{{Cite web |date=2018-03-06 |title=Gantikan PZL MS-1, Si 'Codot' Jadi Ikon Baru Monumen Lanud Atang Sendjaja |url=https://www.airspace-review.com/2018/03/06/gantikan-pzl-ms-1-si-codot-jadi-ikon-baru-monumen-lanud-atang-sendjaja/ |access-date=2022-03-02 |website=Airspace Review |language=en-US}}</ref><ref>{{Cite web |date=2018-10-24 |title=[Photos] The Sikorsky H-34 Choctaw Monument |url=https://lovelybogor.com/photos-the-sikorsky-h-34-choctaw-monument/ |access-date=2022-03-02 |website=Lovely Bogor |language=en-US}}</ref>
;Netherlands
* A former Royal Netherlands Navy SH-34J Seabat bearing the markings of number 134 operating from Valkenburg naval air station is on display with folded rotor blades and tail in the newly opened "Nationaal Militair Museum" situated at the former airbase of Soesterberg. Previously the aircraft was displayed in the National Air Force museum at Kamp Zeist which has since closed down.<ref>[https://www.nmm.nl/zoeken-in-de-collectie/detail/471244/ "SH-34J / 134"] {{Webarchive|url=https://web.archive.org/web/20171015094849/https://www.nmm.nl/zoeken-in-de-collectie/detail/471244/ |date=15 October 2017 }} ''NMM.'' Retrieved: 14 October 2017</ref>

;Thailand
* H4k-64/30 – Type 4A on static display at the {{wipe|Royal Thai Air Force Museum}} in [[Place:Bangkok|Bangkok, Bangkok]].<ref name="RTAFM">{{cite web|title=Building 5:Helicopters and last propeller fighter|url=http://www.rtaf.mi.th/MUSEUM/BLDG5-2.HTM|website=Royal Thai Air Force Museum|access-date=29 October 2016|archive-url=https://web.archive.org/web/20131026164825/http://www.rtaf.mi.th/MUSEUM/BLDG5-2.HTM|archive-date=26 October 2013}}</ref><ref>{{cite web|title=Airframe Dossier - SikorskyS-58 / H-34 / HSS / Wessex, s/n H4k-64/30 RTAF, c/n 58-1117, c/r N1170U|url=http://aerialvisuals.ca/AirframeDossier.php?Serial=15723|website=Aerial Visuals|publisher=AerialVisuals.ca|access-date=29 October 2016}}</ref>
* Unknown ID – Type 4 on static display at the Royal Thai Air Force Museum in Bangkok, Bangkok.<ref name="RTAFM" /><ref>{{cite web|title=Airframe Dossier - Sikorsky UH-34D Seahorse, c/n 58-1683|url=http://aerialvisuals.ca/AirframeDossier.php?Serial=10274|website=Aerial Visuals|publisher=AerialVisuals.ca}}</ref>

;Philippines
* [[File:VillamorMuseumjf0803 40.JPG|thumb|A Sikorsky H-34 helicopter on display at the Philippine Air Force Aerospace Museum in Manila.]] 153131 – UH-34D on static display at the Philippine Air Force Aerospace Museum in Villamor Air Base, Pasay.<ref>{{cite web|title=Airframe Dossier - Sikorsky UH-34D Seahorse, s/n 153131 USN, c/n 58-1769|url=http://aerialvisuals.ca/AirframeDossier.php?Serial=124876|website=Aerial Visuals|publisher=AerialVisuals.ca|access-date=8 November 2016}}</ref>

;United States
[[File:Cavanaugh Flight Museum December 2019 68 (Sikorsky UH-34D Seahorse).jpg|thumb|UH-34D at the Cavanaugh Flight Museum]]
* 138460 – UH-34D on static display at the Evergreen Aviation & Space Museum in McMinnville, Oregon.<ref>{{cite web|title=Helicopters|url=http://www.evergreenmuseum.org/helicopters|website=Evergreen Museum Campus|publisher=Evergreen Museum|access-date=29 October 2016|archive-date=31 May 2017|archive-url=https://web.archive.org/web/20170531024716/http://www.evergreenmuseum.org/helicopters|url-status=dead}}</ref><ref>{{cite web|title=Airframe Dossier - SikorskyS-58 / H-34 / HSS / Wessex, s/n 138460 USN|url=http://aerialvisuals.ca/AirframeDossier.php?Serial=1646|website=Aerial Visuals|publisher=AerialVisuals.ca|access-date=29 October 2016}}</ref>{{Better source needed|reason=The first link doesn't positively identify the individual aircraft or say that it's from the Cavanaugh, and the second link gives me a 404 error.|date=January 2024}}
* 143937 – UH-34D on static display at the Estrella Warbirds Museum in Paso Robles, California.<ref>{{cite web|title=Sikorsky UH-34D Choctaw|url=http://www.ewarbirds.org/aircraft/uh34d.shtml|website=Estrella Warbirds Museum|access-date=21 May 2018}}</ref><ref>{{cite web|title=Airframe Dossier - Sikorsky UH-34J Seabat, s/n 143937 USN, c/n 58-0707, c/r N85128|url=http://aerialvisuals.ca/AirframeDossier.php?Serial=33089|website=Aerial Visuals|publisher=AerialVisuals.ca|access-date=21 May 2018}}</ref>
* 143939 – H-34A on static display at the USS Midway Museum in San Diego, California.<ref>{{cite web|title=H-34 Seabat|url=http://www.midway.org/node/77|website=USS Midway Museum|publisher=USS Midway|access-date=29 October 2016|url-status=dead|archive-url=https://web.archive.org/web/20161029114245/http://www.midway.org/node/77|archive-date=29 October 2016}}</ref><ref>{{cite web|title=Airframe Dossier - Sikorsky H-34A Choctaw, s/n 143939 USN, c/n 58-0709|url=http://aerialvisuals.ca/AirframeDossier.php?Serial=459|website=Aerial Visuals|publisher=AerialVisuals.ca|access-date=29 October 2016}}</ref>
* 145694 – UH-34J on static display at the Wings of Freedom Aviation Museum in Horsham, Pennsylvania. This airframe was built in October 1958 and restored in April 1995.<ref>{{cite web|title=SIKORSKY UH-34D "SEA BAT"|url=http://wingsoffreedommuseum.org/index.php/our-aircraft/13-aircraft/aircraft-rotorcraft/34-aircraft-uh-34j-sea-bat|website=Harold F. Pitcairn Wings of Freedom Aviation Museum|publisher=Wings of Freedom Aviation Museum|access-date=28 October 2016}}</ref><ref>{{cite web|title=Airframe Dossier - Sikorsky SH-34J Seabat, s/n 145694 USN, c/r N46920|url=http://aerialvisuals.ca/AirframeDossier.php?Serial=36711|website=Aerial Visuals|publisher=AerialVisuals.ca|access-date=28 October 2016}}</ref>
* 145717 – LH-34D on static display at the New England Air Museum in Windsor Locks, Connecticut.<ref>{{cite web|title=Sikorsky LH-34D (S-58) 'Seabat'|url=http://neam.org/index.php?option=com_content&view=article&id=878|website=New England Air Museum|access-date=29 October 2016|archive-url=https://web.archive.org/web/20160829230150/http://neam.org/index.php?option=com_content&view=article&id=878|archive-date=29 August 2016}}</ref>
* 147171 – UH-34D on static display in the Vietnam display next to {{USS|Yorktown|CV-10|6}} at the Patriots Point Naval & Maritime Museum in Charleston, South Carolina.<ref>{{cite web|title=UH-34D SEAHORSE|url=http://www.patriotspoint.org/assets/pdf/aircraft/uh-34d_seahorse.pdf|website=Patriots Point|access-date=28 October 2016}}</ref><ref>{{cite web|title=Airframe Dossier - Sikorsky UH-34D Seahorse, s/n 147171 USN, c/n 58-1087|url=http://aerialvisuals.ca/AirframeDossier.php?Serial=16751|website=Aerial Visuals|publisher=AerialVisuals.ca|access-date=29 October 2016}}</ref>
* 147173 – UH-34D in storage at the Connecticut Air & Space Center in Stratford, Connecticut.<ref>{{cite web|title=Sikorsky UH-34D Choctaw|url=https://www.ctairandspace.org/s-58|website=Connectticut Air & Space Center|access-date=12 January 2024}}</ref><ref>{{cite web|title=Airframe Dossier - Sikorsky UH-34D Seahorse, s/n 147173 USMC, c/r N2252X|url=https://aerialvisuals.ca/AirframeDossier.php?Serial=36892|website=Aerial Visuals|publisher=AerialVisuals.ca|access-date=12 January 2024}}</ref>
* 147191 – VH-34D is on static display at the New River Aviation Memorial at the front gate of Marine Corps Air Station New River in Jacksonville, North Carolina.<ref>{{cite news|last1=Burns|first1=Sarah|title=Squadron restores pre-Vietnam helicopters|url=http://www.jdnews.com/20130801/squadron-restores-pre-vietnam-helicopters/308019905|access-date=28 October 2016|work=JDNews.com|publisher=GateHouse Media, LLC|date=1 August 2013|location=Jacksonville, North Carolina}}</ref> This airframe was the last flying US Marine Corps H-34 in 1973.<ref>{{cite web|title=c/n 58-1142|url=http://www.helis.com/database/cn/18177|website=helis.com|access-date=28 October 2016}}</ref>
* 148002 – SH-34J on static display at the Pueblo Weisbrod Aircraft Museum in Pueblo, Colorado.<ref>[http://www.pwam.org/aircraftdisplay1.html "SH-34J Sea Horse."] {{webarchive|url=https://web.archive.org/web/20161225043629/http://www.pwam.org/aircraftdisplay1.html |date=2016-12-25 }} ''Pueblo Weisbrod Aircraft Museum''. Retrieved: 13 March 2015.</ref><ref>{{cite web|title=Airframe Dossier - SikorskyS-58 / H-34 / HSS / Wessex, s/n 148002 USN|url=http://aerialvisuals.ca/AirframeDossier.php?Serial=15843|website=Aerial Visuals|publisher=AerialVisuals.ca|access-date=28 October 2016}}</ref>
* 148764 – UH-34D on static display at Fort Worth NAS near Fort Worth, Texas.<ref>{{cite web|title=Airframe Dossier - Sikorsky S-58 / H-34 / HSS / Wessex, s/n 148764 USMC, c/n 58-1315|url=http://aerialvisuals.ca/AirframeDossier.php?Serial=3832|website=Aerial Visuals|publisher=AerialVisuals.ca|access-date=29 October 2016}}</ref>
* 148768 – UH-34D on static display at the Udvar-Hazy Center of the National Air and Space Museum in Chantilly, Virginia.<ref>{{cite web|title=Sikorsky UH-34D Seahorse|url=http://airandspace.si.edu/collections/artifact.cfm?id=A19750823000|website=Smithsonian National Air and Space Museum|access-date=29 October 2016|archive-url=https://web.archive.org/web/20150510062112/http://airandspace.si.edu/collections/artifact.cfm?id=A19750823000|archive-date=10 May 2015}}</ref>
* 148963 – HH-34J on static display at the Pacific Aviation Museum in Honolulu, Hawaii.<ref>{{cite web|last1=Panko|first1=Ray|title=Sikorsky H-34 Choctaw/Seabat/Seahorse|url=http://www.pacificaviationmuseum.org/pearl-harbor-blog/sikorsky-h-34-choctaw-seabat-seahorse|website=Pacific Aviation Museum Pearl Harbor|access-date=28 October 2016|date=26 August 2013|archive-date=27 October 2016|archive-url=https://web.archive.org/web/20161027182828/http://www.pacificaviationmuseum.org/pearl-harbor-blog/sikorsky-h-34-choctaw-seabat-seahorse|url-status=dead}}</ref>
* 150213 – UH-34D on static display at Fort Worth Aviation Museum.  Previously at Cavanaugh Flight Museum.<ref>https://us8.campaign-archive.com/?u=a81983406c0860675f248398b&id=35e524738e</ref> Fort Worth Aviation 	Museum in Fort Worth, Texas.<ref>{{cite web|title=Aircraft|url=https://us8.campaign-archive.com/u=a81983406c0860675f248398b&id=35e524738e |access-date=4 January 2024}}</ref>
* 150219 – UH-34D on static display at the Flying Leatherneck Aviation Museum in San Diego, California.<ref>{{cite web|title=Aircraft Listing|url=https://www.flyingleathernecks.org/wp-content/uploads/2013/10/Aircraft_Listing.pdf|website=Flying Leathernecks|publisher=Flying Leatherneck Historical Foundation|access-date=29 October 2016|archive-date=4 March 2016|archive-url=https://web.archive.org/web/20160304030559/http://flyingleathernecks.org/wp-content/uploads/2013/10/Aircraft_Listing.pdf|url-status=dead}}</ref><ref>{{cite web|title=Airframe Dossier - Sikorsky UH-34D Seahorse, s/n 150219 USN, c/n 58-1559|url=http://aerialvisuals.ca/AirframeDossier.php?Serial=423|website=Aerial Visuals|publisher=AerialVisuals.ca|access-date=29 October 2016}}</ref>
* 150227 – UH-34D on static display at the National Museum of Naval Aviation in Pensacola, Florida.<ref>{{cite web|title=H-34 SEABAT/SEAHORSE|url=http://www.navalaviationmuseum.org/attractions/aircraft-exhibits/item/?item=h-34_seahorse|website=National Naval Aviation Museum|publisher=Naval Aviation Museum Foundation|access-date=28 October 2016}}</ref><ref>O'Connell, Jim. [http://www.radiocom.net/vx6/pensacola.htm  "Pete VX-6."] ''Radiocom.net.'' Retrieved: 4 September 2012.</ref>
* 150255 – UH-34D on static display at the Wings and Rotors Air Museum in Murrieta, California.<ref>{{cite web|title=SIKORSKY UH-34D|url=http://wingsandrotors.org/sikorsky|website=Wings & Rotors Air Museum|access-date=5 December 2016|url-status=dead|archive-url=https://web.archive.org/web/20161113133424/http://wingsandrotors.org/sikorsky/|archive-date=13 November 2016}}</ref><ref>{{cite web|title=Airframe Dossier - Sikorsky UH-34D Seahorse, s/n 150255 USMC|url=http://aerialvisuals.ca/AirframeDossier.php?Serial=15526|website=Aerial Visuals|publisher=AerialVisuals.ca|access-date=5 December 2016}}</ref><ref>{{cite web|title=Sikorsky UH-34D|url=http://www.platinumfighters.com/uh-34|website=Platinum Fighter Sales|access-date=5 December 2016|url-status=dead|archive-url=https://web.archive.org/web/20161215125410/http://www.platinumfighters.com/uh-34|archive-date=15 December 2016}}</ref>
* 150553 – UH-34D on static display at the USS Hornet Museum in Alameda, California. This airframe entered service in August 1963 and was donated to the museum in 2003 by the Pima Air and Space Museum.<ref>{{cite web|title=UH-34D Seahorse|url=http://www.uss-hornet.org/visit-hornet/aircraft/uh-34d-seahorse|website=USS Hornet Sea, Air & Space Museum|publisher=USS Hornet|access-date=28 October 2016|url-status=dead|archive-url=https://web.archive.org/web/20161029113550/http://www.uss-hornet.org/visit-hornet/aircraft/uh-34d-seahorse/|archive-date=29 October 2016}}</ref>
* 150570 – UH-34D on static display at the National Museum of the Marine Corps in Triangle, Virginia.<ref>{{cite web|last1=Kristy|first1=Ben|title=Sikorsky UH-34D|url=http://www.usmcmuseum.com/sikorsky-uh-34d.html|website=National Museum of the Marine Corps|access-date=29 October 2016}}</ref><ref>{{cite web|title=Airframe Dossier - Sikorsky UH-34D Seahorse, s/n 150570 USN, c/n 58-1699, c/r N19YN|url=http://aerialvisuals.ca/AirframeDossier.php?Serial=490|website=Aerial Visuals|publisher=AerialVisuals.ca|access-date=29 October 2016}}</ref>
* 154895 – UH-34D on static display at the Palm Springs Air Museum in Palm Springs, California.<ref>{{cite web|title=Aircraft|url=http://palmspringsairmuseum.org/aircraft|website=Palm Springs Air Museum|access-date=29 October 2016}}</ref><ref>{{cite web|title=Airframe Dossier - Sikorsky UH-34D Seahorse, s/n 154895 USMC, c/n 58-1805|url=http://aerialvisuals.ca/AirframeDossier.php?Serial=6994|website=Aerial Visuals|publisher=AerialVisuals.ca|access-date=29 October 2016}}</ref>
* 53-4477 – CH-34G on static display at the Air Force Flight Test Center Museum in Edwards, California.<ref>{{cite web|title=Aircraft Inventory|url=http://afftcmuseum.org/exhibits/museum-aircraft-exhibits|website=Flight Test Historical Foundation|access-date=29 October 2016|url-status=dead|archive-url=https://web.archive.org/web/20161019025925/http://afftcmuseum.org/exhibits/museum-aircraft-exhibits/|archive-date=19 October 2016}}</ref><ref>{{cite web|title=Airframe Dossier - Sikorsky S-58 / H-34 / HSS / Wessex, s/n 57-1726 USAF|url=http://aerialvisuals.ca/AirframeDossier.php?Serial=10064|website=Aerial Visuals|publisher=AerialVisuals.ca|access-date=29 October 2016}}</ref>
* 53-4526 – CH-34A in storage at the United States Army Aviation Museum near Daleville, Alabama.<ref>{{cite web|title=Airframe Dossier - Sikorsky CH-34A, s/n 53-4526 US, c/n 58-0088|url=http://aerialvisuals.ca/AirframeDossier.php?Serial=13299|website=Aerial Visuals|publisher=AerialVisuals.ca|access-date=29 October 2016}}</ref>
* 53-4544 – CH-34C on static display at the Camp San Luis Obispo Museum and Historical Site in San Luis Obispo, California.<ref>{{cite web|title=CH-34 "Choctaw"|url=http://californiamilitaryhistory.org/CH34.html|website=The California Military Museum|access-date=29 October 2016}}</ref><ref>{{cite web|title=Airframe Dossier - SikorskyS-58 / H-34 / HSS / Wessex, s/n 53-4544 USAF, c/n 58-0106|url=http://aerialvisuals.ca/AirframeDossier.php?Serial=18745|website=Aerial Visuals|publisher=AerialVisuals.ca|access-date=29 October 2016}}</ref>
* 54-0914 – CH-34C on static display at the Russell Military Museum in Zion, Illinois.<ref>{{cite web|title=RUSSELL MILITARY MUSEUM EXHIBITS|url=http://www.russellmilitarymuseum.com/exhibits.html|website=Russell Military Museum|access-date=29 October 2016}}</ref><ref>{{cite web|title=Airframe Dossier - Sikorsky CH-34C Choctaw, s/n 54-0914 US, c/n 58-0194|url=http://aerialvisuals.ca/AirframeDossier.php?Serial=70687|website=Aerial Visuals|publisher=AerialVisuals.ca|access-date=29 October 2016}}</ref>
* 55-4496 – CH-34C in storage at the Carolinas Aviation Museum in Charlotte, North Carolina.<ref>{{cite web|title=Helicopters|url=http://www.carolinasaviation.org/helicopters.htm|website=Carolinas Aviation Museum|access-date=28 October 2016|archive-url=https://web.archive.org/web/20110725141341/http://www.carolinasaviation.org/helicopters.htm|archive-date=25 July 2011}}</ref> This airframe was previously on display at the Florence Air & Missile Museum in Florence, South Carolina.<ref>{{cite web|title=Airframe Dossier - Sikorsky CH-34A, s/n 55-4496 US, c/n 58-0509|url=http://aerialvisuals.ca/AirframeDossier.php?Serial=147199|website=Aerial Visuals|publisher=AerialVisuals.ca|access-date=28 October 2016}}</ref><ref>{{cite news|title=c/n 58-509|url=http://www.helis.com/database/cn/15181|website=helis.com|access-date=28 October 2016}}</ref>
* 56-4320 – VH-34C on static display at the United States Army Aviation Museum near Daleville, Alabama.<ref>{{cite web|title=Rotary Wing|url=http://www.armyaviationmuseum.org/index.php/museum/aircraft-collection/16-aircraft-collection/65-rotary-wing|website=United States Army Aviation Museum|publisher=Army Aviation Museum Foundation, Inc.|access-date=29 October 2016|url-status=dead|archive-url=https://web.archive.org/web/20161105031344/http://www.armyaviationmuseum.org/index.php/museum/aircraft-collection/16-aircraft-collection/65-rotary-wing|archive-date=5 November 2016}}</ref><ref>{{cite web|title=Airframe Dossier - Sikorsky VH-34C, s/n 56-4320 US, c/n 58-718|url=http://aerialvisuals.ca/AirframeDossier.php?Serial=7221|website=Aerial Visuals|publisher=AerialVisuals.ca|access-date=29 October 2016}}</ref>
* 57-1684 – VH-34C on static display at the Pima Air and Space Museum in Tucson, Arizona.<ref>[http://www.pimaair.org/visit/aircraft-by-name/item/sikorsky-vh-34c-choctaw "Choctaw."] {{Webarchive|url=https://web.archive.org/web/20140714120451/http://www.pimaair.org/visit/aircraft-by-name/item/sikorsky-vh-34c-choctaw |date=14 July 2014 }} ''Pimaair.org''. Retrieved: 13 March 2015.</ref>
* 57-1698 – CH-34A on static display at the Allegheny Arms & Armor Museum in Smethport, Pennsylvania. This airframe was previously on display at the Intrepid Sea, Air & Space Museum in New York, New York.<ref>{{cite web|title=Airframe Dossier - Sikorsky CH-34A, s/n 57-1698 USAF, c/n 58-0842, c/r N94485|url=http://aerialvisuals.ca/AirframeDossier.php?Serial=14516|website=Aerial Visuals|publisher=AerialVisuals.ca|access-date=29 October 2016}}</ref>
* 57-1705 – CH-34C on static display at Travis AFB near Fairfield, California.<ref>{{cite web|title=Airframe Dossier - Sikorsky CH-34C Choctaw, s/n 57-1705 US|url=http://aerialvisuals.ca/AirframeDossier.php?Serial=14388|website=Aerial Visuals|publisher=AerialVisuals.ca|access-date=29 October 2016}}</ref>
* 57-1708 – CH-34C on static display at the Pacific Coast Air Museum in Santa Rosa, California.<ref>{{cite web|title=H-34 Choctaw Helicopter|url=http://pacificcoastairmuseum.org/aircraft/H34Choctaw.asp|website=Pacific Coast Air Museum|access-date=29 October 2016|url-status=dead|archive-url=https://web.archive.org/web/20161021145825/http://www.pacificcoastairmuseum.org/aircraft/H34Choctaw.asp|archive-date=21 October 2016}}</ref><ref>{{cite web|title=Airframe Dossier - SikorskyS-58 / H-34 / HSS / Wessex, s/n 57-1708 USAF, c/n 58-0868|url=http://aerialvisuals.ca/AirframeDossier.php?Serial=18865|website=Aerial Visuals|publisher=AerialVisuals.ca|access-date=29 October 2016}}</ref>
* 57-1725 – VH-34C on static display at the U.S. Army Transportation Museum near Newport News, Virginia.<ref>{{cite web|title=THE EXECUTIVE FLIGHT DETACHMENT|url=http://www.transportation.army.mil/museum/transportation%20museum/executiveflight.htm|website=US Army Transportation Museum|access-date=29 October 2016|url-status=dead|archive-url=https://web.archive.org/web/20161026204625/http://www.transportation.army.mil/museum/transportation%20museum/executiveflight.htm|archive-date=26 October 2016}}</ref><ref>{{cite web|title=Airframe Dossier - Sikorsky VH-34C, s/n 57-1725 US, c/n 58-0910|url=http://aerialvisuals.ca/AirframeDossier.php?Serial=9165|website=Aerial Visuals|publisher=AerialVisuals.ca|access-date=29 October 2016}}</ref>

== Specifications (H-34 Choctaw) ==
[[File:Sikorsky SH-34 orthographical image.svg|right|450px]]
{{Aircraft specs
|ref=Jane's All the World's Aircraft 1958-59<ref name=JAWA1958-59>{{cite book |title=Jane's All the World's Aircraft 1958-59 |editor1-last=Bridgman |editor1-first=Leonard |year=1958 |publisher=Jane's All the World's Aircraft Publishing Co. Ltd. |location=London |pages=371–372}}</ref>
|prime units?=imp
<!--
        General characteristics
-->
|crew=2
|capacity=12 troops (H-34A) / 18 troops (H-34C) / 8 stretchers
|length ft=47
|length in=2
|length note=fuselage
|width ft=<!-- if applicable -->
|width in=<!-- if applicable -->
|width note=
|height ft=14
|height in=3.5
|height note=
|empty weight lb=7646
|empty weight note=
|gross weight lb=11867
|gross weight note=
|max takeoff weight lb=13300
|max takeoff weight note=
|fuel capacity={{cvt|198|-|307|USgal|impgal l}}
|more general=
<!--
        Powerplant
-->
|eng1 number=1
|eng1 name=Wright R-1820-84 Cyclone
|eng1 type=
|eng1 hp=1525
|eng1 note=for take-off
::::{{cvt|1275|hp|0}} METO for 5 minutes

|rot number=1
|rot dia ft=56
|rot dia in=0
|rot area sqft=2463
|rot area note=<!--<br>-->
*'''Blade section:''' - [[Physics:NACA airfoil|NACA 0012]]<ref name="Selig">{{cite web |last1=Lednicer |first1=David |title=The Incomplete Guide to Airfoil Usage |url=https://m-selig.ae.illinois.edu/ads/aircraft.html |website=m-selig.ae.illinois.edu |access-date=16 April 2019}}</ref>
<!--
        Performance
-->
|max speed mph=122
|max speed note=<ref name="Harding">{{cite book |last1=Harding |first1=Stephen |title=U.S. Army aircraft since 1947 : an illustrated directory |date=1990 |publisher=Specialty Press |location=Stillwater MN |isbn=0-933424-53-1 |pages=234–236}}</ref>
|cruise speed mph=97
|cruise speed note=<ref name="Harding"/>
|never exceed speed mph=
|never exceed speed note=
|range mi=190
|range note=
|combat range mi=
|combat range note=
|ferry range mi=
|ferry range note=
|endurance=<!-- if range unknown -->
|ceiling ft=12000
|ceiling note=<br>
*'''Hover ceiling IGE:''' {{cvt|9600|ft|0}} ('''H-34A''')
*'''Hover ceiling OGE:''' {{cvt|5500|ft|0}} ('''H-34A''')
|climb rate ftmin=1500
|climb rate note=at sea level
*'''Vertical rate of climb:''' {{cvt|600|ft/min|m/s|2}} at sea level
|time to altitude=
|disk loading lb/sqft=
|disk loading note=
|fuel consumption lb/mi=
|power/mass=
|more performance=
<!--
        Armament
-->
|armament={{main article|U.S. Helicopter Armament Subsystems#UH-34/CH-34 Chocktaw/Seahorse|U.S. Helicopter Armament Subsystems}}

|avionics=
}}

==Notable appearances in media==
<!-- All content about the aircraft in fictional and gaming use has been moved to Aircraft in fiction, please see [[WP:AIRPOP -->

==See also==
{{Aircontent
|related=
* Piasecki PA-97
* [[Engineering:Sikorsky H-19 Chickasaw|Sikorsky H-19 Chickasaw]]
* [[Engineering:Westland Wessex|Westland Wessex]]
|similar aircraft=
* [[Engineering:Mil Mi-4|Mil Mi-4]]
|lists=
* [[Engineering:List of civil aircraft|List of civil aircraft]]
* List of military aircraft of the United States
* [[Engineering:List of rotorcraft|List of rotorcraft]]
|see also=
}}

==Notes==
{{Reflist}}

==Bibliography==
* Apostolo, Giorgio. ''The Illustrated Encyclopedia of Helicopters.'' New York: Bonanza Books, 1984. {{ISBN|0-517-439352}}.
* Duke, R.A. ''Helicopter Operations in Algeria'' [Translated French]. Washington, DC:  Dept. of the Army, 1959.
*{{cite magazine|last=Elliot|first=Bryn|title=Bears in the Air: The US Air Police Perspective |magazine=Air Enthusiast|date=March–April 1997|issue=68|pages=46–51 |issn=0143-5450}} 
* Fails, William R. ''Marines & Helicopters, 1962–1973''. Darby, Pennsylvania: Diane Publishing, 1995. {{ISBN|0-7881-1818-8}}.
* Griffin, John A. ''Canadian Military Aircraft Serials & Photographs 1920–1968''. Ottawa, Ontario, Canada: Queen's Printer, Publication No. 69-2, 1969.
* Gunston, Bill. ''An Illustrated Guide To the Israeli Air Force''. London: Salamander Books, 1982. {{ISBN|978-0-668-05506-2}}.
* Leuliette, Pierre. ''St. Michael and the Dragon: Memoirs of a Paratrooper'', New York: Houghton Mifflin, 1964.
* Mesko, Jim: ''Airmobile: The Helicopter War in Vietnam''. Carollton, Texas: Squadron/Signal Publications, 1984. {{ISBN|0-89747-159-8}}.
* Riley, David. "French Helicopter Operations in Algeria." ''Marine Corps Gazette'', February 1958, pp.&nbsp;21–26.
* Shrader, Charles R. ''The First Helicopter War: Logistics and Mobility in Algeria, 1954–1962''. Westport, Connecticut: Praeger Publishers, 1999. {{ISBN|0-275-96388-8}}.
* Spenser, Jay P. ''Whirlybirds: A History of the U.S. Helicopter Pioneers''. Seattle, Washington: University of Washington Press, 1998. {{ISBN|0-295-97699-3}}.

==Further reading==
* Padin, Núñez, Jorge Felix and Juan Carlos Cicalesi, eds. [https://web.archive.org/web/20140827083127/http://www.fuerzasaeronavales.com/?product=libro-sikorsky-s-55h-19-s-58t-serie-en-argentina-n6 ''Sikorsky S-55/H-19 & S-58/T'' (Serie en Argentina) in Spanish.] Bahía Blanca, Argentina: Fuerzas Aeronavales, 2011. {{ISBN|978-987-1682-13-3}}.

==External links==
* [http://vnafmamn.com/VNAF_sikorsky.html VNAF Kingbee 219th Squadron history fact sheet] {{Webarchive|url=https://web.archive.org/web/20140618033612/http://www.vnafmamn.com/VNAF_sikorsky.html |date=2014-06-18 }}
* [http://www.helis.com/database/model/76/ HELIS.com Sikorsky S-58/H-34/HSS-1/HUS-1 Database]

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[[Category:Single-engined piston helicopters]]

{{Sourceattribution|Sikorsky H-34}}