1967:, 25 July 1999. Accessed 30 September 2007. "Q. Back in the 1960s and 70s, helicopters bound for Kennedy International Airport used to take off from a deck atop the old Pan Am Building. Why was the service halted? A. As many as 360 helicopter flights a day were planned by New York Airways after the 59-story Pan Am building was completed in 1963, but a bitter public outcry delayed the first few flights until December 21, 1965 ... The operation proved unprofitable since the helicopters carried an average of only eight passengers, and the heliport, which had cost $ 1 million to build, closed in 1968 ... After another round of hearings – and renewed protests – flights resumed in February 1977. Three months later, the landing gear on one of the Sikorsky S-61 helicopters collapsed while passengers were boarding, flipping it on its side and sending a 20-foot rotor blade skidding across the roof and over the west parapet wall ... Within hours, the heliport was closed indefinitely."
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performance calculations that, collectively, resulted in the pilots’ relying on performance calculations that significantly overestimated load-carrying capacity and without an adequate performance margin for a successful takeoff; and insufficient oversight by the U.S. Forest
Service and the Federal Aviation Administration. Contributing factors were the flight crew's failure to address the fact that the helicopter had approached its maximum performance capability on two prior departures from the accident site as they were accustomed to operating at its performance limit. Contributing to the fatalities were the immediate, intense fire due to a fuel spillage upon impact from the fuel tanks that were not crash-resistant, the separation from the floor of the cabin seats that were not crash-resistant, and the use of an inappropriate release mechanism on the seat restraints.
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402:, and at one point planned to perform as many as 360 helicopter flights per day. Launched on 21 December 1965, the operation soon proved to be unprofitable, only carrying an average of only eight passengers, leading to the heliport's closure in 1968. While flights were resumed during February 1977, an accident three months later involving a S-61 helicopter that collapsed and flipped onto its side, killing five people, led to the heliport being closed indefinitely. Two years later, New York Airlines ended helicopter operations.
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which caused the helicopter to tip over without warning. The accident resulted in the permanent closure of the Pan Am
Building heliport. As the heliport was closed, the wreckage was removed by disassembling it and taking the assemblies down to street level using the building's freight elevators. The airframe was taken to Cape Town, South Africa, where it was rebuilt, certified and returned to service for the Ship-Service Role off the shores of the
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383:. It was promoted as being the first U.S. helicopter designed specifically as a commercial airliner. The S-61 seated 25 passengers and had an estimated direct operating cost of 8¢ per seat mile. The operating costs of civil helicopter were considered to be crucial, even prior to the S-61's introduction, as airlines had typically been unable to achieve profitable helicopter routes and became dependent on government
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1275:(69 kPa) to indicate the onset of a metal fatigue failure, yet no pressure loss was indicated during the preflight inspection. As a result of the accident, it was recommended to shorten inspection intervals. The aircraft was recovered from the North Sea floor. It was sold to Carson Helicopter in the USA and re-registered as N87580.
260:; it was 4 ft 3 in (1.30 m) longer than the HSS-2 to facilitate the carriage of a substantial payload of freight or passengers. Initial production S-61Ls were powered by two 1,350 shp (1,010 kW) GE CT58-110 turboshafts, the civil version of the T58. The S-61L features a modified landing gear that eliminated the
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One modification for the S-61 is the Carson
Composite Main Rotor Blade. These blades replace the original Sikorsky metal blades, which are prone to fatigue, and permit a modified aircraft to carry an additional 2,000 lb (907 kg) load, fly 15 kn (28 km/h) faster and increase range
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while boarding passengers. The accident killed four boarding passengers and one woman on the street. 17 additional passengers and the three flight crew members were uninjured. The landing gear collapse resulted from metal fatigue in the helicopter's main landing gear shock-absorbing strut assembly,
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support, by retaining the SH-3's floats. Both the S-61L and S-61N were subsequently updated to the Mk II standard, which was outfitted with more powerful CT58-140 engines that provided superior performance in hot and high conditions, along with incorporating measures to dampen vibration and various
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determined that the probable causes were the following actions by Carson
Helicopters: 1) the intentional understatement of the helicopter's empty weight, 2) the alteration of the power available chart to exaggerate lift capability, and 3) the use of unapproved above-minimum specification torque in
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stabilizers, for greater payload capacity. It was considered attractive to utility operators, while the amphibious S-61N appealed to off-shore operators. The first models were delivered to customers during
September 1961. By the turn of the century, they had become two of the most widely used
1267:. The resulting imbalance caused the motor mounts to fail and caused a fire. The uncontrollable aircraft landed hard in the water, capsized and sank. Investigation indicated that the metal fatigue crack must have spread rapidly in less than four hours. The rotor blades are pressurized with
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was the first company to shorten a commercial S-61. The fuselage is shortened by 50 in (1.3 m) to increase its single-engine performance and external payload. The improved lift performance lent itself to utility operations, particularly in the construction market.
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twin-rotor helicopter, which arrived on the market shortly after the S-61. While regarded as one of the most successful
American scheduled helicopter airlines even by the 21st century, following several accidents involving its S-61s, including the
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3074:"Aircraft Accident Report Crash During Takeoff of Carson Helicopters, Inc., Firefighting Helicopter Under Contract to the U.S. Forest Service, Sikorsky S-61N, N612AZ Near Weaverville, California August 5, 2008 NTSB/AAR-10/06"
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A unique version is the S-61 Shortsky, a conversion of S-61Ls and S-61Ns performed by
Helipro International. VIH Logging was the launch customer for HeliPro's Shortsky, which performed its first flight during February 1996.
1340:(YHZ)when the main gearbox suffered a total loss of transmission fluid. There were 15 passengers and two crew on board. There were no injuries during the ditching, however several passengers suffered varying degrees of
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to operate, reportedly due to the limited capacity and high operating expense of the available helicopters. It was hoped that the S-61 would be able to noticeably improve on economics compared to its predecessors.
201:(SAR) sector in various countries. Third-party companies have often converted individual airframes by shortening the fuselage to bolster its lift capacity. Governmental organizations have procured the S-61: the
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work, was the third civil model of the S-61 produced. The
Payloader features the fixed undercarriage of the S-61L, but with an empty weight almost 2,000 lb (910 kg) less than the standard S-61N.
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were among the first operators. However, operations in this sector proved troublesome, with profits elusive and service often subject to noise complaints and accidents. S-61s also saw service in the
344:, which introduced the type to service on 11 March 1962. The company had reportedly bought them from Sikorsky at a unit price of $ 650,000 each. Sikorsky's foremost competitor for sales was
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1344:. As a result of this incident, improved thermal protection and other advancements in helicopter transportation suits were instituted for offshore workers on Canada's east coast.
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616:. Upgrades include composite main rotor blades, full airframe structural refurbishment, conversion of folding rotor head to non-folding, new modular wiring harness, and
417:) using four S-61s. The helicopter route to Khulna reduced the 21-hour journey overland to 37 minutes by air. 20 towns and cities covered by the network, including
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signed a purchase agreement for up to 110 modernized S-61Ts, which will perform both passenger and cargo transport missions in support of its worldwide operations.
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in thick fog. Only six of the 26 on board survived. It sparked a review of helicopter safety and was the worst civilian helicopter disaster in the UK until 1986.
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On 7 August 1962, the S-61N performed its first flight. Being otherwise identical to the S-61L, this version is optimized for overwater operations, particularly
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crashed on takeoff. Of the 13 people reportedly on board, one other pilot and three firefighters survived the crash with serious or critical injuries. The
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3127:. Los Angeles Injury Law Firm (See post #4 titled "Nine Firefighters Believed Dead After Helicopter Crash in California"). 6 August 2008. Archived from
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oil storage platform as the pilots were attempting to land. The aircraft fell into the North Sea, where six of the 13 passengers and crew on board died.
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Sikorsky quickly decided to pursue development of a dedicated commercial model of the Sea King. In fact, two prime models were produced: the land-based
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banned flights between 9.15pm and 6.30am to limit its impact, but the whole service came to an end after its licence to operate was revoked by the
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on 6 February 1986. Numerous S-61s were also operated on other routes in
Britain, often between the mainland and off-shore locations such as the
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During the 2000s, the S-61T modernisation emerged. This model includes composite main rotor blades, a modular wiring harness, and (optionally) a
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1263:. None of the six people on board (two crew and four passengers) survived. The probable cause was a failure in one of five rotor blades due to
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488:, its noise led to it being a point of controversy, the route overflying several densely populated areas of London. Initially, the
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ordered an initial batch of ten S-61s to serve its helicopter routes. Perhaps most prominently, it started operated flights from a
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1222:, resulting in the loss of 21 lives. The accident aircraft, N300Y, serial number 61031, was the prototype of the Sikorsky S-61L.
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1191:, resulting in the loss of 23 lives. The accident aircraft, N303Y, serial number 61060, was a Sikorsky S-61L en route to
4086:
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315:; these changes reportedly boost the helicopter's lift capability as well as increase its speed. During June 2010, the
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procured in excess of 100 S-61Ts in support of its worldwide operations. These rotorcraft have been operated in both
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453:. The average price of a ticket was 25 rupees. It was the world's largest commercial helicopter network at the time.
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Additional civil models of the S-61 would soon be developed. The
Payloader, a stripped-down version optimized for
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177:, were created. The S-61L had an enlarged cabin and dispensed with some of the amphibious features, such as its
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commercial S-61-L, N619PA, suffered a static rollover onto its starboard side at the heliport on top of the
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The commercial version of the Sea King was developed during the late 1950s. Two versions, the land-based
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1158:, operated by a Sikorsky S-61 helicopter registration AP-AOC, crashed on a scheduled domestic flight in
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On 5 August 2008, two pilots and seven firefighters assigned to the Iron Complex fire in California's
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This article is about the civil versions of the Sikorsky S-61 models. For the military versions, see
3195:
Elliott, Bryn (May–June 1999). "On the Beat: The First 60 Years of Britain's Air Police, Part Two".
1875:"Press Releases: U.S. State Department Accepts Modernized S-61TM Helicopters for Use in Afghanistan"
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Report on the Accident to Sikorsky S-61N G-BEWL at Brent Spar, East Shetland Basin on 25 July 1990
2088:"U.S. State Department Orders 11 More Upgraded S-61 Helicopters for Use in Iraq & Afghanistan"
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Aircraft Accident Report. Los Angeles Airways, Inc. S-61L Helicopter, N300Y, Compton, California
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N300Y, the Los Angeles Airways prototype of the Sikorsky S-61L Helicopter, lifting off from the
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238:) commenced during September 1961. The initial production aircraft being powered by a pair of
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On 20 March 1985, an Okanagan Helicopters S-61N (C-GOKZ) ditched in the Atlantic Ocean off
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226:(ASW) helicopter capable of both detecting and attacking submarines. On 11 March 1959, the
8:
1719:"Will Disasters Like Disneyland Helicopter Airline And Kobe Crashes Impact EVTOL Future?"
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2537:"Sejarah Hari Ini: Rekam Jejak Helikopter Sikorsky S-61V dalam Kedirgantaraan Indonesia"
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Sikorsky S-61 helicopter registration AP-AOA, crashed on a scheduled domestic flight in
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fjord two years earlier, due to flameout on both engines because of ice in the intake.
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2026:"Airlink helicopters: The helicopter service that used to link Heathrow to Gatwick"
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Various government organisations have also adopted the S-61. During the 2010s, the
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in support of a training operation, crashed and killed the four occupants, at the
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after the main gearbox failed, killing 23 of the 24 passengers and crew on board.
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1336:. The aircraft was en route from the MODU Sedco 709 offshore Nova Scotia to the
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2370:"Former employees of Carson Helicopters indicted over fatal Iron 44 Fire crash"
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A Coulson Aircrane S-61L dropping water during the Australia bushfire season.
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162:. They were developed and produced by the American helicopter manufacturer
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2638:"Lebanon's Air Force launches public aircraft bids as part of fleet reorg"
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by the company "Court Helicopter" which was later amalgamated with CHC.
484:(BAA). While the operation proved valuable prior to the opening of the
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261:
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engines, each capable of providing up to 930 kW (1,250 shp).
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59:
35:
1893:"HELI-EXPO: Sikorsky S-61T gains new life in State Department program"
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S-61N, OY-HAI "Akigssek" ("Grouse") crashed about 40 km south of
620:-supplied glass cockpit avionics. Initial models converted were S-61N.
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Non-amphibious civil transport version. It seats up to 30 passengers.
532:
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2563:"Sikorsky S-61V: Menelusuri Jejak Helikopter Bung Karno Yang Hilang"
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2347:
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S-61N, registration G-BEID, suffered an engine failure and fire and
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was a prominent operator of the type into the twenty-first century.
2142:"Airworthiness Directives Sikorsky Models S-61L, S-61N, and S-61NM"
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S-61N, registration PH-NZC, crashed en route to an oil rig in the
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License-built model of the S-61N by Agusta, with a shortened cabin.
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98:
3101:. United States Fire Administration. 6 August 2008. Archived from
2326:"DOD Contracts Keep U.S. Helicopter Operators Busy in Afghanistan"
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984:
919:
505:
469:
446:
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409:(PIA) operated its Sikorsky S-61 helicopters for services within
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UK Air Accidents Investigation Branch, Department of Transport,
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Four die in Hawaii crash of contractor’s helicopter, Navy says
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Improved version of the S-61L, cabin equipped with cargo bins.
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2049:"Sikorsky and Bristow Embark on New Era of Search and Rescue"
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2514:"Coast Guard S-61 being retired from duty in Prince Rupert"
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2588:"Decision on ÂŁ80m Air Corps helicopters contract due soon"
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A British International Helicopter S-61N lands aboard the
336:
Newsreel of an S-61N performing an emergency water landing
2995:"ASN Aircraft accident 10-MAY-1974 Sikorsky S-61N PH-NZC"
515:
3214:
The International Directory of Civil Aircraft, 2003–2004
2060:
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1979:"The History of New York Airways' Helicopter Operations"
1776:
1407:. There were no survivors among the six people on board.
1240:, resulting in the loss of 15 lives. It was en route to
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over a distance of 42 miles; it was operated jointly by
2066:"End Of An Era As Irish Coast Guard's Last S61 Retires"
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1708:
234:. Production deliveries of the HSS-2 (later designated
527:
operated a number of S-61s; they were used to perform
2055:
1990:
1988:
1705:
1607:
1248:. The same aircraft had an emergency landing on the
3233:
Helicopters: An Illustrated History of Their Impact
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Aircraft of comparable role, configuration, and era
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547:between 1983 and 2007. Between 1991 and 2013, the
367:(FAA), the S-61 had been purchased by a number of
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1985:
1750:. Time Magazine. 26 December 1960. Archived from
360:, Los Angeles Airways ceased operations in 1971.
4434:
182:airliner and oil rig support helicopters built.
3295:Canadian Coast Guard S-61N Characteristics page
3216:. Aerospace Publications Pty Ltd. p. 194.
2019:
2017:
1959:
1957:
1955:
1681:
1457:
1214:, while en route to the Disneyland Heliport in
363:Even prior to the receipt of approval from the
340:The first civil operator to adopt the S-61 was
456:Between 1978 and 1986, a S-61 was used for an
256:. On 2 November 1961, the S-61L conducted its
4087:
3325:
2294:Sociedad de Salvamento y Seguridad MarĂtima.
1810:
1808:
1538:engines, 1,500 shp (1,100 kW) each
1437:On 22 February 2022, an S-61N being flown by
1127:San Francisco and Oakland Helicopter Airlines
612:modernized upgrade performed by Sikorsky and
185:Airliners were a key customer for the S-61L.
3043:"3/1990 Sikorsky S61N, G-BEID, 13 July 1988"
2103:"Upgraded Sikorsky Sea Kings on new mission"
2014:
1952:
1886:
1884:
3300:S-61N Specs & Photo on flugzeuginfo.net
3152:Audrey McAvoy and Jennifer Sinco Kelleher,
1939:The Illustrated Encyclopedia of Helicopters
1742:
1740:
1738:
1736:
1734:
1732:
1599:1,310–2,220 ft/min (6.7–11.3 m/s)
1389:Sociedad de Salvamento y Seguridad MarĂtima
1355:into the North Sea. There were no injuries.
787:Sociedad de Salvamento y Seguridad MarĂtima
743:National Agency for Disaster Countermeasure
551:operated its own S-61s for SAR operations.
42:Sociedad de Salvamento y Seguridad MarĂtima
4453:1950s United States civil utility aircraft
4094:
4080:
3332:
3318:
3305:HELIS.com Sikorsky S-61/H-3/HSS-2 Database
1805:
1474:International Directiory of Civil Aircraft
218:In September 1957, Sikorsky was awarded a
3032:26 October 2010. Retrieved: 13 June 2011.
3030:HAI Convention News "An S-61 With a Past"
2560:
2476:
2122:. Flightglobal Insight. 2015. p. 712
1977:Waldvogel, Robert G. (11 November 2021).
1976:
1881:
1793:. Flightglobal Insight. 2015. p. 162
1716:
1581:120 kn (140 mph, 220 km/h)
1575:144 kn (166 mph, 267 km/h)
1156:Pakistan International Airlines Flight 17
208:
3249:
2992:
2797:"British International Helicopters S-61"
2462:"Helicopter Transport Services Aircraft"
1931:
1729:
1136:
861:
846:
646:
634:
531:(SAR) operations from civilian bases at
514:
326:
279:
3271:The History of British European Airways
3268:
3230:
3211:
3194:
3168:"The Incomplete Guide to Airfoil Usage"
1587:450 nmi (520 mi, 830 km)
222:development contract for an amphibious
4435:
2926:
2100:
1717:Goldstein, Michael (12 October 2021).
322:
275:
4075:
3339:
3313:
3159:
2534:
2296:"HelicĂłpteros de Salvamento MarĂtimo"
2090:. verticalmag.com. 20 September 2010.
2023:
1844:
1550:3,019 sq ft (280.5 m)
16:Series of civil transport helicopters
3165:
2948:. arktiskleksikon.dk. Archived from
2654:. erahelicopters.com. Archived from
2372:. wildfiretoday.com. 4 February 2013
1501:58 ft 11 in (17.96 m)
1132:
2436:"Croman Corporation Heavy Lift Svc"
1891:Reed Business Information Limited.
842:
594:Amphibious civil transport version.
13:
3015:UPI. Helicopter Crash Kills Five.
2271:. bristowgroup.com. Archived from
1507:17 ft 6 in (5.33 m)
1466:Orthographically projected diagram
1461:
651:A Helitanker S-61N, December 2009
14:
4489:
3288:
1861:"Helipro Shortsky enters service"
1367:British International Helicopters
1349:British International Helicopters
1220:Los Angeles International Airport
1193:Los Angeles International Airport
1090:British International Helicopters
837:United States Department of State
606:An L model in an N configuration.
556:United States Department of State
317:United States Department of State
203:United States Department of State
2772:"British Caledonian Helicopters"
2678:"KLM-Noordzee Helikopters S-61N"
1748:"The Self-Supporting Helicopter"
1610:
1369:S-61, registration G-BEWL, from
1102:
1065:
1043:
1021:
999:
977:
950:
927:
900:
878:
794:
772:
750:
728:
706:
679:
657:
411:East Pakistan Helicopter Service
34:
4443:1950s United States helicopters
3188:
3117:
3091:
3066:
3053:
3035:
3022:
2986:
2964:
2938:
2905:
2883:
2861:
2849:. flightglobal.com. p. 581
2839:
2814:
2789:
2764:
2739:
2717:
2692:
2670:
2652:"KLM / Era Helicopters history"
2644:
2630:
2605:
2580:
2554:
2535:Zahir, Zahir (3 January 2023).
2528:
2506:
2454:
2428:
2406:
2384:
2362:
2340:
2318:
2287:
2261:
2247:
2225:
2199:
2173:
2156:
2134:
2094:
2080:
2041:
2032:
1970:
1895:. Flight Global. Archived from
1877:. verticalmag.com. 2 June 2010.
1867:
1845:Megna, Dan (11 February 2021).
1171:Pakistan International Airlines
1058:Pakistan International Airlines
407:Pakistan International Airlines
365:Federal Aviation Administration
2893:. flightglobal.com. p. 57
2891:"World Helicopter Market 1968"
2727:. flightglobal.com. p. 63
2725:"World Helicopter Market 1967"
2613:"Garda Cósta na hÉireann S-61"
2561:Pamungkas, Bayu (2016-02-01).
2516:. helihub.com. 3 December 2010
2348:"Carson Helicopters Home page"
1996:"Asia: Choppers over Pakistan"
1853:
1838:
1767:
1758:
1525:19,000 lb (8,618 kg)
1519:16,164 lb (7,332 kg)
1513:12,336 lb (5,596 kg)
1443:Pacific Missile Range Facility
1412:Shasta–Trinity National Forest
1208:Los Angeles Airways Flight 417
1185:Los Angeles Airways Flight 841
1085:British Caledonian Helicopters
833:Helicopter Transport Services
600:Improved version of the S-61N.
1:
4448:Search and rescue helicopters
4403:Canadian Sea King replacement
3019:: Tuesday, 17 May 1977, A-13.
2747:"British Airways Helicopters"
2010:– via content.time.com.
1937:Apostolo, G. "Sikorsky S-61".
1863:. FlightGlobal. 3 April 1996.
1670:
1593:12,500 ft (3,800 m)
1395:helicopter, crashed into the
1338:Halifax International Airport
213:
4473:Aircraft first flown in 1959
3250:Sikorsky, Sergei I. (2007).
3231:McGowen, Stanley S. (2005).
2438:. croman.net. Archived from
1675:
1458:Specifications (S-61N Mk II)
630:
519:S-61N during a SAR operation
355:crash of the prototype S-61
230:Sea King prototype made its
40:A S-61N Mk.II operating for
7:
2269:"Bristow Helicopters fleet"
2209:. cougar.ca. Archived from
2101:Varnon, Rob (3 June 2010).
2051:. PRNewswire. 3 March 2015.
2024:Doyle, Dave (14 May 2022).
1847:"Helicarrier: Dreaming Big"
1603:
1303:British Airways Helicopters
1080:British Airways Helicopters
569:
566:, amongst other locations.
478:British Airways Helicopters
308:61 nmi (113 km).
10:
4494:
3063:, retrieved 4 January 2014
1816:"About Carson Helicopters"
1323:St Mary's, Isles of Scilly
482:British Airports Authority
474:British Caledonian Airways
381:Chicago Helicopter Airways
240:General Electric T58-GE-8B
195:Chicago Helicopter Airways
154:are civil variants of the
18:
4416:
4390:
4372:
4281:
4249:
4232:
4222:
4205:United Aircraft of Canada
4203:
4184:
4175:
4142:
4112:
4018:
3859:
3629:
3561:
3348:
3269:Woodley, Charles (2006).
3125:"FAA/NTSB Investigations"
3017:Beaver County (Pa.) Times
2935:, Adopted: 27 August 1969
2038:Woodley 2006, pp. 8, 103.
1533:General Electric CT58-140
1399:while it was flying from
1305:' commercial S-61 G-BEON
134:
126:
118:
113:
105:
86:
78:
66:
54:
49:
33:
28:
4468:Twin-turbine helicopters
3212:Frawley, Gerard (2003).
2913:"PIA helicopter service"
2183:. chc.ca. Archived from
1646:Sikorsky CH-124 Sea King
1095:Her Majesty's Coastguard
490:Civil Aviation Authority
480:in partnership with the
3862:(military designations)
3564:(military designations)
3273:. Casemate Publishers.
3172:m-selig.ae.illinois.edu
2946:"Arktisk dokumentarkiv"
2350:. carsonhelicopters.com
2255:"BNPB Official Website"
1981:. metroairportnews.com.
1941:. Bonanza Books, 1984.
1480:General characteristics
1169:On 10 December 1966, a
4458:Amphibious helicopters
3632:(company designations)
3351:(company designations)
3254:. Arcadia Publishing.
3099:"USFA Fatality Notice"
2181:"CHC Helicopter fleet"
1822:. 2009. Archived from
1631:Sikorsky SH-3 Sea King
1544:62 ft (19 m)
1467:
1317:, while en route from
1232:On 25 October 1973, a
1145:
1036:Helikopter Service A/S
873:
859:
853:Netherlands Coastguard
672:Brunei Shell Petroleum
652:
644:
520:
337:
285:
224:anti-submarine warfare
209:Design and development
139:Sikorsky SH-3 Sea King
21:Sikorsky SH-3 Sea King
4019:Experimental aircraft
3931:CH-53E Super Stallion
2997:. aviation-safety.net
2822:"HM Coastguard S-61N"
2640:. Defense News. 2021.
2300:salvamentomaritimo.es
2233:"Air Greenland fleet"
1963:Schneider, Daniel B.
1773:Sikorsky 2007, p. 92.
1702:Frawley 2003, p. 194.
1465:
1189:Paramount, California
1140:
865:
850:
650:
638:
523:The British operator
518:
335:
283:
62:/ airliner helicopter
4424:Sikorsky S-70 family
4420:Sikorsky H-19 family
4106:S-61 Sea King family
3936:CH-53K King Stallion
3562:Fixed-wing aircraft
3349:Fixed-wing aircraft
3154:The Associated Press
3105:on 17 September 2008
2700:"Helicopter Service"
2464:. htshelicopters.com
2207:"Cougar Helicopters"
2120:"VTOL AIRCRAFT 1967"
1764:McGowen 2005, p. 84.
1542:Main rotor diameter:
1154:On 2 February 1966,
942:Indonesian Air Force
915:Canadian Coast Guard
460:service between the
4422: •
4398:Armament subsystems
4373:Individual aircraft
3463:S-22/23/24/25/26/27
3252:The Sikorsky Legacy
2952:on 14 December 2014
2847:"Flight Int'l 1969"
2187:on 13 February 2013
2028:. getreading.co.uk.
1899:on 30 December 2010
1791:"CIVIL V/STOL 1971"
1625:Related development
1523:Max takeoff weight:
1495:up to 30 passengers
1414:, were killed when
1365:On 25 July 1990, a
1347:On 13 July 1988, a
1216:Anaheim, California
1212:Compton, California
1206:On 14 August 1968,
1201:Anaheim, California
1197:Disneyland Heliport
1143:Disneyland Heliport
1117:Los Angeles Airways
893:Argentine Air Force
857:Bristow Helicopters
765:Bristow Helicopters
525:Bristow Helicopters
494:Transport Secretary
405:From 1962 to 1966,
373:Los Angeles Airways
342:Los Angeles Airways
323:Operational history
276:Further development
272:other refinements.
252:and the amphibious
187:Los Angeles Airways
173:and the amphibious
95:Bristow Helicopters
50:General information
3926:CH-53 Sea Stallion
2871:. flightglobal.com
2869:"New York Airways"
2494:on 26 January 2020
2416:. Helimax Aviation
2275:on 22 January 2018
2235:. airgreenland.com
2002:. 13 December 1963
1923:has generic name (
1849:. verticalmag.com.
1826:on 31 January 2009
1820:Carson Helicopters
1468:
1439:Croman Corporation
1416:Carson Helicopters
1387:On 8 July 2006, a
1278:On 16 May 1977, a
1146:
992:Lebanese Air Force
874:
860:
855:S-61N operated by
829:Croman Corporation
814:Carson Helicopters
699:Cougar Helicopters
653:
645:
641:Carson Helicopters
614:Carson Helicopters
521:
338:
297:Carson Helicopters
286:
220:United States Navy
4463:Sikorsky aircraft
4430:
4429:
4299:Jolly Green Giant
4245:
4244:
4069:
4068:
3261:978-0-738549-95-8
3166:Lednicer, David.
2213:on 24 August 2013
1651:Westland Sea King
1393:search and rescue
1373:crashed onto the
1301:On 16 July 1983,
1255:On 10 May 1974 a
1160:Faridpur Division
1133:Notable accidents
970:Irish Coast Guard
549:Irish Coast Guard
529:search and rescue
333:
199:search and rescue
164:Sikorsky Aircraft
144:
143:
119:Introduction date
73:Sikorsky Aircraft
4485:
4289:Blackhawk (S-67)
4182:
4181:
4132:CH-3/HH-3E/HH-3F
4096:
4089:
4082:
4073:
4072:
4026:Cypher/Cypher II
3973:SH-60B/F Seahawk
3968:MH-60R/S Seahawk
3958:HH-60G Pave Hawk
3953:UH-60 Black Hawk
3334:
3327:
3320:
3311:
3310:
3284:
3265:
3246:
3227:
3208:
3183:
3182:
3180:
3178:
3163:
3157:
3147:
3141:
3140:
3138:
3136:
3121:
3115:
3114:
3112:
3110:
3095:
3089:
3088:
3086:
3084:
3070:
3064:
3057:
3051:
3050:
3039:
3033:
3026:
3020:
3013:
3007:
3006:
3004:
3002:
2990:
2984:
2983:
2981:
2979:
2968:
2962:
2961:
2959:
2957:
2942:
2936:
2930:
2924:
2923:
2921:
2919:
2909:
2903:
2902:
2900:
2898:
2887:
2881:
2880:
2878:
2876:
2865:
2859:
2858:
2856:
2854:
2843:
2837:
2836:
2834:
2832:
2818:
2812:
2811:
2809:
2807:
2793:
2787:
2786:
2784:
2782:
2768:
2762:
2761:
2759:
2757:
2743:
2737:
2736:
2734:
2732:
2721:
2715:
2714:
2712:
2710:
2696:
2690:
2689:
2687:
2685:
2674:
2668:
2667:
2665:
2663:
2648:
2642:
2641:
2634:
2628:
2627:
2625:
2623:
2609:
2603:
2602:
2600:
2598:
2584:
2578:
2577:
2575:
2574:
2558:
2552:
2551:
2549:
2548:
2532:
2526:
2525:
2523:
2521:
2510:
2504:
2503:
2501:
2499:
2490:. Archived from
2488:www.sikorsky.com
2480:
2474:
2473:
2471:
2469:
2458:
2452:
2451:
2449:
2447:
2432:
2426:
2425:
2423:
2421:
2410:
2404:
2403:
2401:
2399:
2388:
2382:
2381:
2379:
2377:
2366:
2360:
2359:
2357:
2355:
2344:
2338:
2337:
2335:
2333:
2322:
2316:
2315:
2313:
2311:
2302:. Archived from
2291:
2285:
2284:
2282:
2280:
2265:
2259:
2258:
2251:
2245:
2244:
2242:
2240:
2229:
2223:
2222:
2220:
2218:
2203:
2197:
2196:
2194:
2192:
2177:
2171:
2170:
2168:
2160:
2154:
2153:
2151:
2149:
2138:
2132:
2131:
2129:
2127:
2116:
2107:
2106:
2098:
2092:
2091:
2084:
2078:
2077:
2075:
2073:
2062:
2053:
2052:
2045:
2039:
2036:
2030:
2029:
2021:
2012:
2011:
2009:
2007:
1992:
1983:
1982:
1974:
1968:
1961:
1950:
1935:
1929:
1928:
1922:
1918:
1916:
1908:
1906:
1904:
1888:
1879:
1878:
1871:
1865:
1864:
1857:
1851:
1850:
1842:
1836:
1835:
1833:
1831:
1812:
1803:
1802:
1800:
1798:
1787:
1774:
1771:
1765:
1762:
1756:
1755:
1744:
1727:
1726:
1714:
1703:
1700:
1620:
1615:
1614:
1613:
1591:Service ceiling:
1568:
1548:Main rotor area:
1482:
1371:Sumburgh Airport
1309:in the southern
1280:New York Airways
1183:On 22 May 1968,
1122:New York Airways
1108:
1106:
1105:
1071:
1069:
1068:
1049:
1047:
1046:
1027:
1025:
1024:
1005:
1003:
1002:
983:
981:
980:
956:
954:
953:
933:
931:
930:
906:
904:
903:
884:
882:
881:
843:Former operators
824:Helimax Aviation
800:
798:
797:
778:
776:
775:
756:
754:
753:
734:
732:
731:
712:
710:
709:
685:
683:
682:
663:
661:
660:
591:
590:
398:on the 59-story
392:New York Airways
377:New York Airways
334:
191:New York Airways
38:
26:
25:
4493:
4492:
4488:
4487:
4486:
4484:
4483:
4482:
4433:
4432:
4431:
4426:
4412:
4386:
4368:
4277:
4241:
4228:
4223:Augusta (Italy)
4218:
4214:CH-124 Sea King
4199:
4177:
4171:
4138:
4114:
4108:
4100:
4070:
4065:
4014:
4000:CH-124 Sea King
3990:RAH-66 Comanche
3921:HH-52A Seaguard
3861:
3855:
3631:
3625:
3563:
3557:
3350:
3344:
3338:
3291:
3281:
3262:
3243:
3224:
3191:
3186:
3176:
3174:
3164:
3160:
3148:
3144:
3134:
3132:
3131:on 24 June 2007
3123:
3122:
3118:
3108:
3106:
3097:
3096:
3092:
3082:
3080:
3072:
3071:
3067:
3058:
3054:
3041:
3040:
3036:
3028:Epstein, Curt.
3027:
3023:
3014:
3010:
3000:
2998:
2991:
2987:
2977:
2975:
2970:
2969:
2965:
2955:
2953:
2944:
2943:
2939:
2931:
2927:
2917:
2915:
2911:
2910:
2906:
2896:
2894:
2889:
2888:
2884:
2874:
2872:
2867:
2866:
2862:
2852:
2850:
2845:
2844:
2840:
2830:
2828:
2820:
2819:
2815:
2805:
2803:
2795:
2794:
2790:
2780:
2778:
2770:
2769:
2765:
2755:
2753:
2745:
2744:
2740:
2730:
2728:
2723:
2722:
2718:
2708:
2706:
2698:
2697:
2693:
2683:
2681:
2676:
2675:
2671:
2661:
2659:
2658:on 9 April 2013
2650:
2649:
2645:
2636:
2635:
2631:
2621:
2619:
2611:
2610:
2606:
2596:
2594:
2586:
2585:
2581:
2572:
2570:
2569:(in Indonesian)
2567:Indomiliter.com
2559:
2555:
2546:
2544:
2543:(in Indonesian)
2533:
2529:
2519:
2517:
2512:
2511:
2507:
2497:
2495:
2482:
2481:
2477:
2467:
2465:
2460:
2459:
2455:
2445:
2443:
2442:on 4 March 2013
2434:
2433:
2429:
2419:
2417:
2412:
2411:
2407:
2397:
2395:
2390:
2389:
2385:
2375:
2373:
2368:
2367:
2363:
2353:
2351:
2346:
2345:
2341:
2331:
2329:
2328:. ainonline.com
2324:
2323:
2319:
2309:
2307:
2306:on 8 April 2012
2292:
2288:
2278:
2276:
2267:
2266:
2262:
2253:
2252:
2248:
2238:
2236:
2231:
2230:
2226:
2216:
2214:
2205:
2204:
2200:
2190:
2188:
2179:
2178:
2174:
2166:
2162:
2161:
2157:
2147:
2145:
2140:
2139:
2135:
2125:
2123:
2118:
2117:
2110:
2099:
2095:
2086:
2085:
2081:
2071:
2069:
2064:
2063:
2056:
2047:
2046:
2042:
2037:
2033:
2022:
2015:
2005:
2003:
1994:
1993:
1986:
1975:
1971:
1962:
1953:
1936:
1932:
1920:
1919:
1910:
1909:
1902:
1900:
1889:
1882:
1873:
1872:
1868:
1859:
1858:
1854:
1843:
1839:
1829:
1827:
1814:
1813:
1806:
1796:
1794:
1789:
1788:
1777:
1772:
1768:
1763:
1759:
1746:
1745:
1730:
1715:
1706:
1701:
1682:
1678:
1673:
1618:Aviation portal
1616:
1611:
1609:
1606:
1564:
1551:
1478:
1460:
1284:Pan Am Building
1271:gas at 10
1257:KLM Helikopters
1135:
1103:
1101:
1066:
1064:
1044:
1042:
1022:
1020:
1014:KLM Helikopters
1000:
998:
978:
976:
965:Irish Air Corps
951:
949:
928:
926:
901:
899:
879:
877:
845:
795:
793:
773:
771:
751:
749:
729:
727:
707:
705:
680:
678:
658:
656:
633:
623:AS-61N-1 Silver
588:
587:
572:
498:Channel Islands
400:Pan Am Building
327:
325:
278:
216:
211:
101:
97:
45:
24:
17:
12:
11:
5:
4491:
4481:
4480:
4475:
4470:
4465:
4460:
4455:
4450:
4445:
4428:
4427:
4417:
4414:
4413:
4411:
4410:
4405:
4400:
4394:
4392:
4388:
4387:
4385:
4384:
4376:
4374:
4370:
4369:
4367:
4366:
4361:
4356:
4351:
4346:
4345:
4344:
4339:
4334:
4329:
4321:
4316:
4311:
4306:
4301:
4296:
4291:
4285:
4283:
4279:
4278:
4276:
4275:
4270:
4265:
4260:
4257:HH-52 Seaguard
4253:
4251:
4247:
4246:
4243:
4242:
4239:
4237:
4230:
4229:
4226:
4224:
4220:
4219:
4217:
4216:
4210:
4208:
4201:
4200:
4198:
4197:
4191:
4189:
4179:
4173:
4172:
4170:
4169:
4168:
4167:
4162:
4152:
4146:
4144:
4140:
4139:
4137:
4136:
4135:
4134:
4124:
4118:
4116:
4110:
4109:
4099:
4098:
4091:
4084:
4076:
4067:
4066:
4064:
4063:
4058:
4053:
4048:
4043:
4038:
4033:
4028:
4022:
4020:
4016:
4015:
4013:
4012:
4007:
4005:CH-148 Cyclone
4002:
3997:
3992:
3987:
3986:
3985:
3980:
3975:
3970:
3965:
3960:
3950:
3945:
3944:
3943:
3938:
3933:
3923:
3918:
3913:
3908:
3903:
3901:H-19 Chickasaw
3898:
3893:
3888:
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3329:
3322:
3314:
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3290:
3289:External links
3287:
3286:
3285:
3279:
3266:
3260:
3247:
3241:
3228:
3222:
3209:
3197:Air Enthusiast
3190:
3187:
3185:
3184:
3158:
3142:
3116:
3090:
3065:
3052:
3034:
3021:
3008:
2993:Harro Ranter.
2985:
2974:. hdekker.info
2963:
2937:
2925:
2904:
2882:
2860:
2838:
2813:
2788:
2763:
2738:
2716:
2691:
2680:. Demand media
2669:
2643:
2629:
2604:
2592:irishtimes.com
2579:
2553:
2527:
2505:
2475:
2453:
2427:
2405:
2394:. CHI Aviation
2383:
2361:
2339:
2317:
2286:
2260:
2246:
2224:
2198:
2172:
2155:
2133:
2108:
2093:
2079:
2054:
2040:
2031:
2013:
1984:
1969:
1951:
1930:
1880:
1866:
1852:
1837:
1804:
1775:
1766:
1757:
1754:on 2010-10-08.
1728:
1704:
1679:
1677:
1674:
1672:
1669:
1666:
1665:
1654:
1653:
1648:
1643:
1641:Sikorsky S-61R
1638:
1633:
1622:
1621:
1605:
1602:
1601:
1600:
1597:Rate of climb:
1594:
1588:
1582:
1576:
1573:Maximum speed:
1562:
1561:
1555:Blade section:
1552:
1545:
1539:
1526:
1520:
1514:
1508:
1502:
1496:
1490:
1459:
1456:
1455:
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1429:
1428:
1408:
1397:Atlantic Ocean
1379:
1378:
1357:
1356:
1345:
1326:
1315:Atlantic Ocean
1293:
1292:
1276:
1253:
1224:
1223:
1204:
1181:
1167:
1134:
1131:
1130:
1129:
1124:
1119:
1113:
1112:
1098:
1097:
1092:
1087:
1082:
1076:
1075:
1073:United Kingdom
1061:
1060:
1054:
1053:
1039:
1038:
1032:
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1017:
1016:
1010:
1009:
995:
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972:
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938:
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923:
922:
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910:
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844:
841:
840:
839:
834:
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821:
816:
811:
805:
804:
790:
789:
783:
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768:
767:
761:
760:
758:United Kingdom
746:
745:
739:
738:
724:
723:
717:
716:
702:
701:
696:
694:CHC Helicopter
690:
689:
675:
674:
668:
667:
643:Sikorsky S-61N
632:
629:
628:
627:
624:
621:
610:
607:
604:
601:
598:
595:
592:
585:
582:
579:
576:
571:
568:
504:, and various
502:Scilly Islands
451:Hatiya Upazila
324:
321:
277:
274:
215:
212:
210:
207:
148:Sikorsky S-61L
142:
141:
136:
135:Developed from
132:
131:
128:
124:
123:
122:September 1961
120:
116:
115:
111:
110:
107:
103:
102:
93:
91:CHC Helicopter
88:
84:
83:
82:Active service
80:
76:
75:
70:
64:
63:
56:
52:
51:
47:
46:
39:
31:
30:
15:
9:
6:
4:
3:
2:
4490:
4479:
4478:Sikorsky S-61
4476:
4474:
4471:
4469:
4466:
4464:
4461:
4459:
4456:
4454:
4451:
4449:
4446:
4444:
4441:
4440:
4438:
4425:
4421:
4415:
4409:
4406:
4404:
4401:
4399:
4396:
4395:
4393:
4389:
4383:
4382:
4381:Helicopter 66
4378:
4377:
4375:
4371:
4365:
4362:
4360:
4357:
4355:
4352:
4350:
4347:
4343:
4340:
4338:
4335:
4333:
4330:
4328:
4325:
4324:
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4280:
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4166:
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4143:Model numbers
4141:
4133:
4130:
4129:
4128:
4125:
4123:
4120:
4119:
4117:
4111:
4107:
4104:
4097:
4092:
4090:
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4083:
4078:
4077:
4074:
4062:
4059:
4057:
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4044:
4042:
4039:
4037:
4034:
4032:
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4027:
4024:
4023:
4021:
4017:
4011:
4008:
4006:
4003:
4001:
3998:
3996:
3995:VH-92 Patriot
3993:
3991:
3988:
3984:
3981:
3979:
3976:
3974:
3971:
3969:
3966:
3964:
3963:HH-60J/MH-60T
3961:
3959:
3956:
3955:
3954:
3951:
3949:
3946:
3942:
3939:
3937:
3934:
3932:
3929:
3928:
3927:
3924:
3922:
3919:
3917:
3914:
3912:
3909:
3907:
3904:
3902:
3899:
3897:
3894:
3892:
3889:
3887:
3884:
3882:
3879:
3875:
3872:
3871:
3870:
3869:SH-3 Sea King
3867:
3866:
3864:
3858:
3852:
3849:
3847:
3844:
3842:
3839:
3837:
3834:
3832:
3829:
3827:
3824:
3822:
3819:
3817:
3814:
3812:
3809:
3807:
3804:
3802:
3799:
3797:
3794:
3792:
3789:
3787:
3784:
3782:
3779:
3777:
3774:
3772:
3769:
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3764:
3762:
3759:
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3722:
3720:
3717:
3716:
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3712:
3710:
3707:
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3700:
3697:
3695:
3692:
3690:
3687:
3685:
3682:
3680:
3677:
3675:
3672:
3670:
3667:
3665:
3662:
3660:
3657:
3655:
3652:
3650:
3647:
3645:
3642:
3640:
3639:VS-300 (S-46)
3637:
3636:
3634:
3628:
3622:
3619:
3617:
3614:
3612:
3609:
3607:
3604:
3602:
3599:
3597:
3594:
3592:
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3587:
3584:
3582:
3579:
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3574:
3572:
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3554:
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3549:
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3544:
3541:
3539:
3536:
3534:
3531:
3529:
3526:
3524:
3521:
3519:
3516:
3514:
3511:
3509:
3506:
3504:
3501:
3499:
3496:
3494:
3491:
3489:
3486:
3484:
3481:
3479:
3476:
3474:
3471:
3469:
3466:
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3461:
3459:
3456:
3454:
3451:
3449:
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3444:
3441:
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3434:
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3429:
3426:
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3421:
3419:
3416:
3414:
3411:
3409:
3406:
3404:
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3399:
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3323:
3321:
3316:
3315:
3312:
3306:
3303:
3301:
3298:
3296:
3293:
3292:
3282:
3280:1-844151-86-7
3276:
3272:
3267:
3263:
3257:
3253:
3248:
3244:
3242:1-851094-68-7
3238:
3234:
3229:
3225:
3223:1-875671-58-7
3219:
3215:
3210:
3206:
3202:
3199:(81): 64–69.
3198:
3193:
3192:
3173:
3169:
3162:
3155:
3151:
3146:
3130:
3126:
3120:
3104:
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3094:
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2618:
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2608:
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2509:
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2409:
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2387:
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2365:
2349:
2343:
2327:
2321:
2305:
2301:
2297:
2290:
2274:
2270:
2264:
2256:
2250:
2234:
2228:
2212:
2208:
2202:
2186:
2182:
2176:
2165:
2164:"BSP Website"
2159:
2143:
2137:
2121:
2115:
2113:
2105:. ctpost.com.
2104:
2097:
2089:
2083:
2067:
2061:
2059:
2050:
2044:
2035:
2027:
2020:
2018:
2001:
1997:
1991:
1989:
1980:
1973:
1966:
1960:
1958:
1956:
1948:
1947:0-517-43935-2
1944:
1940:
1934:
1926:
1921:|author=
1914:
1898:
1894:
1887:
1885:
1876:
1870:
1862:
1856:
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1841:
1825:
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1817:
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1809:
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1687:
1685:
1680:
1668:
1664:
1661:
1660:
1659:
1658:
1652:
1649:
1647:
1644:
1642:
1639:
1637:
1636:Sikorsky S-62
1634:
1632:
1629:
1628:
1627:
1626:
1619:
1608:
1598:
1595:
1592:
1589:
1586:
1583:
1580:
1579:Cruise speed:
1577:
1574:
1571:
1570:
1569:
1567:
1560:
1556:
1553:
1549:
1546:
1543:
1540:
1537:
1534:
1530:
1527:
1524:
1521:
1518:
1517:Gross weight:
1515:
1512:
1511:Empty weight:
1509:
1506:
1503:
1500:
1497:
1494:
1491:
1488:
1485:
1484:
1483:
1481:
1476:
1475:
1472:
1464:
1452:
1448:
1444:
1440:
1436:
1435:
1434:
1433:
1425:
1421:
1417:
1413:
1409:
1406:
1402:
1398:
1394:
1390:
1386:
1385:
1384:
1383:
1376:
1372:
1368:
1364:
1363:
1362:
1361:
1354:
1350:
1346:
1343:
1339:
1335:
1331:
1327:
1324:
1320:
1316:
1312:
1308:
1304:
1300:
1299:
1298:
1297:
1290:
1285:
1281:
1277:
1274:
1270:
1266:
1265:metal fatigue
1262:
1258:
1254:
1251:
1250:Kangerlussuaq
1247:
1243:
1239:
1235:
1231:
1230:
1229:
1228:
1221:
1217:
1213:
1209:
1205:
1202:
1198:
1194:
1190:
1187:crashed near
1186:
1182:
1179:
1178:East Pakistan
1176:
1172:
1168:
1165:
1164:East Pakistan
1161:
1157:
1153:
1152:
1151:
1150:
1144:
1139:
1128:
1125:
1123:
1120:
1118:
1115:
1114:
1111:
1110:United States
1100:
1099:
1096:
1093:
1091:
1088:
1086:
1083:
1081:
1078:
1077:
1074:
1063:
1062:
1059:
1056:
1055:
1052:
1041:
1040:
1037:
1034:
1033:
1030:
1019:
1018:
1015:
1012:
1011:
1008:
997:
996:
993:
990:
989:
986:
975:
974:
971:
968:
966:
963:
962:
959:
948:
947:
943:
940:
939:
936:
925:
924:
921:
918:
916:
913:
912:
909:
898:
897:
894:
891:
890:
887:
876:
875:
872:
871:
864:
858:
854:
849:
838:
835:
832:
830:
827:
825:
822:
820:
817:
815:
812:
810:
807:
806:
803:
802:United States
792:
791:
788:
785:
784:
781:
770:
769:
766:
763:
762:
759:
748:
747:
744:
741:
740:
737:
726:
725:
722:
721:Air Greenland
719:
718:
715:
704:
703:
700:
697:
695:
692:
691:
688:
677:
676:
673:
670:
669:
666:
655:
654:
649:
642:
637:
625:
622:
619:
615:
611:
608:
605:
602:
599:
596:
593:
586:
583:
580:
577:
574:
573:
567:
565:
561:
557:
552:
550:
546:
542:
541:Lee-on-Solent
538:
534:
530:
526:
517:
513:
511:
507:
503:
499:
495:
491:
487:
483:
479:
475:
471:
467:
463:
459:
454:
452:
448:
444:
440:
436:
432:
428:
424:
420:
416:
413:(present day
412:
408:
403:
401:
397:
393:
389:
386:
382:
378:
374:
370:
366:
361:
359:
358:
351:
347:
346:Boeing Vertol
343:
320:
318:
314:
313:glass cockpit
309:
305:
301:
298:
294:
291:
282:
273:
270:
265:
264:stabilisers.
263:
259:
258:maiden flight
255:
251:
246:
244:
241:
237:
233:
232:maiden flight
229:
225:
221:
206:
204:
200:
196:
192:
188:
183:
180:
176:
172:
167:
165:
161:
157:
156:SH-3 Sea King
153:
149:
140:
137:
133:
130:11 March 1959
129:
125:
121:
117:
112:
108:
104:
100:
96:
92:
89:
87:Primary users
85:
81:
77:
74:
71:
69:
65:
61:
57:
53:
48:
43:
37:
32:
27:
22:
4379:
4358:
4348:
4164:
4159:
4115:designations
4105:
3911:CH-37 Mojave
3906:H-34 Choctaw
3860:Helicopters
3718:
3630:Helicopters
3270:
3251:
3235:. ABC-CLIO.
3232:
3213:
3196:
3189:Bibliography
3175:. Retrieved
3171:
3161:
3145:
3133:. Retrieved
3129:the original
3119:
3107:. Retrieved
3103:the original
3093:
3083:14 September
3081:. Retrieved
3077:
3068:
3055:
3037:
3024:
3016:
3011:
2999:. Retrieved
2988:
2976:. Retrieved
2966:
2954:. Retrieved
2950:the original
2940:
2928:
2916:. Retrieved
2907:
2895:. Retrieved
2885:
2873:. Retrieved
2863:
2851:. Retrieved
2841:
2829:. Retrieved
2825:
2816:
2804:. Retrieved
2800:
2791:
2779:. Retrieved
2775:
2766:
2754:. Retrieved
2750:
2741:
2729:. Retrieved
2719:
2707:. Retrieved
2703:
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1391:S-61N Mk.II
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1294:
1289:Western Cape
1234:Greenlandair
1226:
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819:CHI Aviation
609:S-61T Triton
553:
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486:M25 motorway
464:airports of
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127:First flight
106:Number built
68:Manufacturer
58:Medium-lift
3948:CH-54 Tarhe
2918:14 February
2310:19 February
2072:12 December
2068:. afloat.ie
1566:Performance
1529:Powerplant:
1342:hypothermia
1334:Nova Scotia
1210:crashed in
1007:Netherlands
597:S-61N Mk II
581:S-61L Mk II
564:Afghanistan
348:with their
99:AAR Airlift
29:S-61L/S-61N
4437:Categories
4418:See also:
4408:In fiction
4234:Mitsubishi
4178:production
3156:2022-02-23
3135:3 February
2897:5 February
2731:4 February
2573:2023-11-21
2547:2023-11-21
2484:"Sikorsky"
2148:12 January
1830:12 January
1723:forbes.com
1671:References
1536:turboshaft
1449:island of
1375:Brent Spar
1311:Celtic Sea
427:Chittagong
415:Bangladesh
350:Vertol 107
243:turboshaft
214:Background
160:helicopter
4323:Sea King
3205:0143-5450
3109:11 August
3047:AAIB (UK)
3001:4 January
2978:4 January
2956:4 January
2826:Helis.com
2801:Helis.com
2776:Helis.com
2751:Helis.com
2704:Helis.com
2617:Helis.com
2541:suara.com
2144:. faa.gov
2126:4 January
1903:4 January
1797:4 January
1676:Citations
1663:Mil Mi-14
1559:NACA 0012
1493:Capacity:
1471:Data from
1330:Owls Head
1313:, in the
1261:North Sea
1195:from the
935:Indonesia
886:Argentina
870:Vicksburg
736:Indonesia
714:Greenland
631:Operators
533:Stornoway
510:North Sea
423:Sirajganj
385:subsidies
369:airliners
158:military
60:transport
4349:Shortsky
4319:Seaguard
4294:Commando
4207:(Canada)
4186:Westland
4113:Military
4103:Sikorsky
4041:Raider X
3343:aircraft
3341:Sikorsky
3177:16 April
3078:ntsb.gov
2875:17 March
2853:17 March
2831:17 March
2806:17 March
2756:17 March
2684:20 March
2662:20 March
2622:17 March
2597:22 April
2520:20 March
2468:17 March
2446:17 March
2376:17 March
2354:17 March
2279:17 March
2239:17 March
2217:17 March
2191:17 March
1965:"F.Y.I."
1913:cite web
1604:See also
1447:Hawaiian
1405:La Palma
1401:Tenerife
1319:Penzance
1269:nitrogen
1051:Pakistan
809:AAR Corp
570:Variants
545:Portland
537:Sumburgh
506:oil rigs
466:Heathrow
443:Chandpur
396:heliport
44:in Spain
4309:Pelican
4250:Related
4236:(Japan)
4176:Foreign
4160:S-61L/N
4031:Firefly
3978:H-60J/K
3874:HH-3E/F
3719:S-61L/N
2781:26 June
2709:26 June
2414:"Fleet"
2392:"Fleet"
1505:Height:
1499:Length:
1445:on the
1353:ditched
1307:crashed
1242:Paamiut
985:Lebanon
958:Ireland
944:- S-61V
920:Helijet
508:in the
470:Gatwick
458:Airlink
447:Sandwip
439:Barisal
435:Kushtia
269:oil rig
114:History
4391:Topics
4364:X-Wing
4359:Triton
4354:Silver
4332:CH-124
4259:(S-62)
4056:XBLR-3
4036:Raider
3606:XBLR-3
3473:S-29-A
3277:
3258:
3239:
3220:
3203:
2972:"1974"
2420:20 May
2398:20 May
2332:4 June
1945:
1585:Range:
1420:N612AZ
1418:S-61N
1107:
1070:
1048:
1029:Norway
1026:
1004:
982:
955:
932:
908:Canada
905:
883:
799:
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755:
733:
711:
687:Canada
684:
665:Brunei
662:
618:Cobham
603:S-61NM
543:, and
500:, the
462:London
431:Mongla
379:, and
228:XHSS-2
193:, and
152:S-61N
79:Status
4342:WS-61
4282:Names
4240:HSS-2
4227:AS-61
4195:WS-61
4165:S-61R
4150:AS-61
4122:HSS-2
3983:VH-60
3941:MH-53
3916:XH-39
3851:S-434
3846:S-333
3841:S-300
3836:S-103
3831:S-102
3826:S-100
3724:S-61R
3548:VS-44
2167:(PDF)
1487:Crew:
1451:Kauai
1432:2020s
1382:2000s
1360:1990s
1296:1980s
1244:from
1227:1970s
1218:from
1175:Dhaka
1149:1960s
780:Spain
589:S-61N
575:S-61L
419:Bogra
357:N300Y
262:float
254:S-61N
250:S-61L
236:SH-3A
179:float
175:S-61N
171:S-61L
4337:SH-3
4327:CH-3
4314:RSRA
4304:Nuri
4273:S-72
4268:S-67
4263:S-66
4188:(UK)
4155:S-61
4061:XV-2
4046:SB-1
3896:H-18
3821:S-97
3816:S-95
3811:S-92
3806:S-80
3801:S-76
3796:S-75
3791:S-74
3786:S-73
3781:S-72
3776:S-71
3771:S-70
3766:S-69
3761:S-68
3756:S-67
3751:S-66
3746:S-65
3741:S-64
3736:S-63
3731:S-62
3714:S-61
3709:S-60
3704:S-59
3699:S-58
3694:S-57
3689:S-56
3684:S-55
3679:S-54
3674:S-53
3669:S-52
3664:S-51
3659:S-50
3654:S-49
3649:S-48
3644:S-47
3621:XV-2
3611:XPBS
3586:JR2S
3576:C-28
3553:S-45
3543:S-43
3538:S-42
3533:S-41
3528:S-40
3523:S-39
3518:S-38
3513:S-37
3508:S-36
3503:S-35
3498:S-34
3493:S-33
3488:S-32
3483:S-31
3478:S-30
3468:S-28
3458:S-21
3453:S-20
3448:S-19
3443:S-18
3438:S-17
3433:S-16
3428:S-15
3423:S-14
3418:S-13
3413:S-12
3408:S-11
3403:S-10
3275:ISBN
3256:ISBN
3237:ISBN
3218:ISBN
3201:ISSN
3179:2019
3137:2009
3111:2008
3085:2017
3003:2015
2980:2015
2958:2015
2920:2019
2899:2016
2877:2013
2855:2013
2833:2013
2808:2013
2783:2019
2758:2013
2733:2016
2711:2019
2686:2013
2664:2013
2624:2013
2599:2018
2522:2013
2500:2017
2470:2013
2448:2013
2422:2019
2400:2019
2378:2013
2356:2013
2334:2013
2312:2022
2281:2013
2241:2013
2219:2013
2193:2013
2150:2015
2128:2015
2074:2013
2008:2017
2000:Time
1943:ISBN
1925:help
1905:2015
1832:2009
1799:2015
1531:2 Ă—
1424:NTSB
1246:Nuuk
1238:Nuuk
868:USS
562:and
560:Iraq
476:and
468:and
449:and
150:and
146:The
55:Type
4127:H-3
4010:HLH
3891:H-6
3886:H-5
3881:R-4
3616:XSS
3596:P2S
3581:JRS
3571:C-6
3398:S-9
3393:S-8
3388:S-7
3383:S-6
3378:S-5
3373:S-4
3368:S-3
3363:S-2
3358:S-1
1403:to
1321:to
1273:psi
1199:in
109:119
4439::
4051:X2
3601:RS
3591:PS
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1987:^
1954:^
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