Sikorsky S58
- CountryUnited States of America
- TypeMid size utility helicopter
- PowerplantsS58 - One 1140kW (1525hp) Wright R182084 radial piston engine driving a four blade main rotor and four blade tail rotor. S58T - One 1340kW (1800shp) Pratt & Whitney Canada PT6T3 Twin Pac turboshaft (two PT6s linked through a combining transmission) or one 1400kW (1875shp) PT6T6.
- PerformanceS58 - Max speed 198km/h (107kt), max cruising speed 158km/h (85kt). Initial rate of climb 1100ft/min. Hovering ceiling out of ground effect 2400ft. Range with max fuel and reserves 450km (243nm). S58T (with PT6T6s) - Max speed 222km/h (120kt), cruising speed 158km/h (85kt). Hovering ceiling out of ground effect 6500ft. Range with reserves 480km (260nm).
- WeightsS58 - Empty equipped 3461kg (7630lb), max takeoff 5895kg (13,000lb). S58T - Empty 3355kg (7400lb), max TO 5895kg (13,000lb).
- DimentionsS58 - Main rotor diameter 17.07m (56ft 0in), length overall rotors turning 17.27m (56ft 8in), fuselage length 14.25m (46ft 9in), height 4.36m (14ft 4in). Main rotor disc area 228.5m2 (2460sq ft). S58T - Same except for fuselage length 14.41m (47ft 3in).
- CapacityFlightcrew of two. Main cabin seating capacity for between 10 and 16 passengers or freight. Can also carry external sling loads.
- Production1821 S58s built mainly for military but also for civil use between 1954 and 1970.
The Sikorsky S58 was a standout amongst the best cylinder fueled average size helicopters assembled.
Sikorsky created the S58 in light of a US Navy prerequisite for an against submarine fighting helicopter. What came about was the S58, which emphasizes a solitary Wright R1820 outspread cylinder motor mounted in the nose, one of the biggest fuselages to be intended for a solitary cylinder controlled helo and a raised flightdeck. As the Xhss1 the S58 flew shockingly on March 8 1954.
Substantial quantities of S58s were in this manner manufactured to present with the US Navy in against submarine fighting parts as the Sh34g and Sh34j Seabat, and in utility parts with the US Marines as the Uh34d Seahorse. The US Army worked huge numbers as the Ch34 Choctaw while numerous other unified nations worked the S58 in different military parts. The UK for instance permit constructed a turboprop advancement called the Wessex, some of which saw common administration.
Unobtrusive quantities of cylinder fueled S58s saw common administration with most were conveyed to clients inside the USA. The S58 offered an extensive fuselage and lifting limit, yet its cylinder motor made it costly to work.
In 1970 Sikorsky proclaimed it was creating a turboprop transformation bundle for the S58. Turboprop controlled S58s are assigned the S58t and were at first fueled by a 1340kw (1800shp) Pratt & Whitney Pt6t3, later air ship a 1400kw (1875shp) Pt6t6. The principal S58t transformation flew shockingly on August 19 1970. Sikorsky set up a creation line to change over client S58s, offered packs for S58 administrators to perform the transformation and bought utilized S58s, changed over them to turbine control and offered them for resale. Little numbers stay in business administration.
Pictures of Sikorsky S58
