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Royal Danish Navy / Kongelige Danske
Marine - Aviation Sikorsky S-61A Sea King |
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| 07/23 | ||
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The Sikorsky SH-3 Sea King (company designation S-61) is an American
twin-engined anti-submarine warfare (ASW) helicopter designed and
built by Sikorsky Aircraft. A landmark design, it was one of the
first ASW rotorcraft to use turboshaft engines. The Sea King has its origins in efforts by the United States Navy to counter the growing threat of Soviet submarines during the 1950s. Accordingly, the helicopter was specifically developed to deliver a capable ASW platform; in particular, it combined the roles of hunter and killer, which had previously been carried out by two separate helicopters. The Sea King was initially designated HSS-2, which was intended to imply a level of commonality to the earlier HSS-1; it was subsequently redesignated as the SH-3A during the early 1960s. Introduced to service in 1961, it was operated by the United States Navy as a key ASW and utility asset for several decades prior to being replaced by the non-amphibious Sikorsky SH-60 Seahawk in the 1990s. The Sea King also performed various other roles and missions such as search-and-rescue, transport, anti-shipping, medevac, plane guard, and airborne early warning operations. Sikorsky S-61A (Royal Danish Air Force): Export version for the Royal Danish Air Force. Wider pontoons without flotation bags, a 530-liter center tank instead of a dipping sonar and no automatic powered folding system. Specifications (SH-3D): Crew: 2 flight crew + 2 sonar operators Capacity: (S-61A transport) 26 troops, or 15 stretchers, or 12 VIP passengers Length: 54 ft 9 in (16.69 m) Width: 16 ft 4 in (4.98 m) (rotors folded) Height: 16 ft 10 in (5.13 m) Empty weight: 11,865 lb (5,382 kg) Gross weight: 18,626 lb (8,449 kg) (ASW mission) Max takeoff weight: 21,500 lb (9,752 kg) Main rotor diameter: 62 ft 0 in (18.90 m) Main rotor area: 3,019 sq ft (280.5 m2) Powerplant: 2 x General Electric T58-GE-10 turboshaft engines, 1,400 shp (1,044 kW) each (total power limited to 2,500 hp (1,864 kW) by main gearbox) Maximum speed: 144 kn (166 mph, 267 km/h) Cruise speed: 118 kn (136 mph, 219 km/h) for max range Range: 542 nmi (625 mi, 1,005 km) with max fuel, 10% reserves Service ceiling: 14,700 ft (4,480 m) Rate of climb: 2,200 ft/min (11.2 m/s) at sea level |
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