H-3 Sea King Overview Canadian Experience See Also

SH-3 Sea King

Description
Role	Multi-role helicopter
Crew	4 (2 pilots, 2 ASW systems operators)
Dimensions
Length	54 ft 9 in (fuselage)	16.7 m
Width
Height	16 ft 10 in	5.13 m
Rotor diameter	62 ft	19 m
Weights
Empty	11,865 lb	5,382 kg
Loaded
Maximum take-off	18,626 lb	8,449 kg
Powerplant
Engines	2 General Electric T58-GE-10 turboshaft
Power	1,400 shp (each)
Performance
Maximum speed	166 mph	267 km/h
Combat range
Ferry range	621 mi	1,000 km
Service ceiling	14,700 ft	4,481 m
Rate of climb	1,310-2,220 ft/min	400-670 m/min
Armament
Guns	None
Torpedoes	2 Mk 46 torpedoes (on SH-3H)

The H-3 Sea King (also known as Sikorsky S-61) is a twin-engined multi-purpose helicopter. It served with the United States Navy and other forces, and in many countries around the world.

1 Overview

Designed by Sikorsky, the Sea King first flew in 1959, and was operational with the United States Navy in June 1961. It was intended from the start to be used for shipboard operations. The five-bladed rotors can be folded for easy stowage. It was used primarily for anti-submarine warfare, but also served in anti-ship, search and rescue, transport, communications, executive transport and Airborne Early Warning roles. In the US Navy it was replaced in the ASW and S&R roles by the SH-60 Sea Hawk during the 1990s, but continues in service for other roles, for ASW in the reserves, and around the world. All H-3 aircraft still in U.S. Navy service are used in the logistics support, range support, Search and Rescue, test, and VIP transport roles.

The Westland Sea King variant was manufactured under license by Westland Helicopters, Ltd. in the United Kingdom, who developed a specially modified version for the Royal NavyThe Royal Navy is the navy of the United Kingdom. It operates a number of aircraft carriers, destroyers, frigates, fifteen nuclear submarines, and various other ships, as well as aircraft and Britain's amphibious forces, the Royal Marines. The Royal Navy. It is powered by a pair of British Rolls-RoyceRolls-Royce plc is the second-largest aircraft engine maker in the world, behind General Electric's GE Aircraft Engines division. Rolls-Royce, an automobile company founded in 1906 by Henry Royce and C. Rolls, produced its first aircraft engine in 1914. Bristol Gnome turbines, and has British avionics and ASW equipment. This variant first flew in 1969, and entered service the next year. It was also used by the Royal Air ForceThe Royal Air Force (often abbreviated to RAF is the air force of the United Kingdom. History Formation and Early History The Royal Flying Corps was formed by Royal Warrant on May 13, 1912 superseding the Air Battalion of the Royal Engineers. The Royal Na and has been sold round the world. Aircraft were also manufactured under license in Japan.

Countries to which the Sea King has been exported include ArgentinaArgentina is a Spanish-speaking country in southern South America, situated between the Andes in the west and the southern Atlantic Ocean in the east. It is bordered by Paraguay and Bolivia in the north, Brazil and Uruguay in the northeast and Chile in th, AustraliaAustralia is the sixth-largest country in the world (geographically), the only one to occupy an entire continent, and the largest in the region of Australasia. Australia includes the island of Tasmania, which is an Australian State. Its neighbouring count, BelgiumFor alternate meanings, see Belgium (disambiguation). Belgian redirects here. For the horse breed commonly used as a draft horse, see Belgian. The Kingdom of Belgium ( Dutch: Belgi French: Belgique German: Belgien is a country in Western Europe, bordered, BrazilThis article is about Brazil, the country. For other article subjects named Brazil see Brazil (disambiguation). The Federative Republic of Brazil Republica Federativa do Brasil in Portuguese) is the largest and most populous country in South America., CanadaCanada historically the Dominion of Canada is the second-largest, and northernmost, country in the world. It is a decentralized federation of 10 provinces and 3 territories, governed as a constitutional monarchy, and formed in 1867 through an act of Confe, Egypt, Germany, India, Japan, Malaysia, Norway, Pakistan, Qatar, Spain and the United Kingdom.

Armaments and equipment of Sea Kings vary widely with their role. Typical armaments can be four torpedoes, four depth charges or two anti-ship missiles (Sea Eagle or Exocet). In the Search and Rescue role the cabin can accommodate 22 survivors or nine stretchers and two medical officers. In the troop transport role 28 soldiers can be accommodated.

2 Canadian Experience

The Canadian Navy purchased 41 Sea Kings in 1963, and designated them CH-124. The helicopters at that time were state of the art and served well, being well liked by crews. The Canadian forces developed a technique for landing the huge helicopters on small ship decks, using a 'hauldown' winch, that earned them the nickname of 'Crazy Canucks'.

As the Sea Kings have aged, however, they have become increasingly unreliable and hard to maintain. Twelve have crashed, killing ten people. Each Sea King now requires over 30 manhours of maintenance for every hour flying, a figure described by the Canadian Naval Officers Association as "grossly disproportionate" [1]. They are unavailable for operations 40% of the time. The Sea Kings are now widely perceived as unreliable, outdated and expensive to maintain, both inside and outside the service. In late 2003 the entire fleet was grounded (except for essential operations) for a few weeks after two aircraft lost power within a few days of each other.

Efforts to replace the helicopters have been hampered by political considerations. In 1992 the Progressive Conservative government announced the purchase of EH-101 helicopters to replace them. However on a change of government in 1993 the incoming Liberals immediately cancelled the order (paying cancellation fees of $500 million Canadian). When it subsequently became clear that new helicopters were still desperately needed, the Liberal government began a procurement process that critics have accused of being deliberately tailored to prevent the EH-101 from being chosen as a candidate. It was only after the retirement of Prime Minister Jean Chrétien at the end of 2003 that the competition was finally opened. In July of 2004 it was announced that the Sea Kings will be replaced by a new Sikorsky helicopter, the Sikorsky H-92. The first deliveries are expected in 2008. There has been some controversy with the choice of the H-92. After the EH-101 was cancelled, Canada was still desperate for a replacement for the CH-113 Labrador as a search and rescue helicopter. In the end Canada purchased 15 civilian EH-101s that lacked the warfighting capability of a full blown EH-101. This caused considerable embarrassment for the Liberal government because the military had purchased an aircraft they said was too extravagant. By selecting the H-92 for its warships Canada has lost the opportunity to have a single helicopter for S&R and shipborne operations. The advantages would have included only having to train aircrew on one platform, a single set of parts etc.

2.1 See also

Canadian Sea King pilots have composed a "theme song" for their service, sung to the tune of the 1970s pop hit " Seasons in the Sun" beginning

Goodbye papa, please pray for me

My helicopter's crashing in the sea.

The chorus runs

We had joy, we had fun, we had Sea Kings in the sun

But the engines are on fire and the Sea Kings must retire.

3 External links

4 H-3 Variants

SH-3D -- anti-submarine warfare
SH-3H -- anti-submarine warfare
UH-3H -- cargo
SH-3H -- cargo
VH-3A -- executive transport mission s

5 H-3 Stats

5.1 Accommodation

SH-3H/D -- Crew of four (two pilots, two sensor operators) and three passengers
UH-3H/SH-3G -- Up to 15 passengers

5.2 Armament

2 x MK-46/44 anti-submarine torpedoes
Various sonobouys and pyrotechnic devices

5.3 Performance

SH-3D/H helicopters are capable of airspeeds up to 120 KIAS for 3.5-5.5 hours

5.4 Powerplant

SH-3H/UH-3H: 2 x General Electric T-58-GE-402 turboshaft engines -- 1,500 shaft horsepower (1100 kW) each.
SH-3D: 2 x General Electric T58-GE-10 turboshaft engines -- 1,400 shaft horsepower (1000 kW) each.
SH-3G: 2 x General Electric T58-GE-8F turboshaft engines -- 1,250 shaft horsepower (900 kW) each.
Westland: two Rolls Royce Gnome (Mks. 1 & 2 H1400-1, Mk. 4 onwards H1400-2) free power turbines - 1200 kW (1,600 shaft horsepower each).

US ASW aircraft 1950-1959 US military utility aircraft 1950-1959 Helicopters

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