General Electric T58

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General Electric T58 in a Sikorsky S-61R of the US Coast Guard
Rolls-Royce Gnome , a license variant of the General Electric T58

The General Electric T58 is a small wave turbine made by the US manufacturer General Electric Company, which has been used in helicopters and fixed-wing aircraft since the 1950s . Series production ended in 1984 after more than 7,000 copies had been made. The civil version CT58 received type certification from the Federal Aviation Administration on July 1, 1959 .

history

In 1953, the US Bureau of Aeronautics placed a $ 3 million contract to develop a small wave turbine that would perform at least 800 WPS and weigh no more than 400 lb (182 kg). The main purpose of the T58 was to be used in US Navy helicopters, smaller turboprop aircraft and as an additional booster for larger military and civil aircraft. In addition to its use in watercraft and tanks, industrial uses of the T58 are also known under the designation LM100.

As a flying test bench, a Sikorsky HSS was equipped with two T58 instead of the one radial engine in the nose, which flew in this configuration for the first time on January 30, 1957. Also in a Vertol H-21 C, flown for the first time in September 1957 , the standard engine was exchanged for two T58, after which the machine was given the new designation H-21D.

The first helicopter designed from the start to use the T58 was the Kaman HU2K-1 , the Sikorsky S-62 received a T58, and the Sikorsky HSS-2 (after 1962 SH-3A) used two of the engines. The T58 was also used on the Vertol 107 and the Fairchild VZ-5 , an experimental aircraft. De Havilland was granted a license to produce the T58 in Europe, which was eventually used as the Rolls-Royce Gnome in the Westland Sea King . Licensed production also took place in Germany and Japan.

Military versions

YT58-GE-2
Basic version with kW (1065 WPS), official sample testing with a 150-hour run completed in September 1957
T58-GE-1
Five-minute performance of 1300 WPS in Sikorsky CH-3 used
T58-GE-3
Five-minute power of 1325 WPS, used in the Bell UH-1 F
T58-GE-5
Five-minute power of 1500 WPS
T58-GE-6
Standard version with 1050 WPS continuous output, optional reduction gear, exhaust gas outlet can be selected in three positions, can be operated with JP-4 or JP-5
T58-GE-8B
Development of the -6 version with 1250 WPS
T58-GE-10
Series version with 1400 WPS
T58-GE-16
Series version with 1870 WPS, two-stage power turbine
T58-GE-100
like GE-5, but increased ten-minute power of 1500 WPS

Civil versions

CT58-110
1250 WPS
CT58-140
1400 WPS

commitment

Technical specifications

apply to version GE-6

Parameter Data
Type Shaft turbine (with free-running output shaft)
compressor 10-stage axial compressor, the first three rows of guide vanes can be adjusted. Compression ratio 8.3: 1, mass flow: 5.62 kg / s at a speed of 26,300 min −1 of the turbine part.
Combustion chamber Annular combustion chamber , 16 injection nozzles
consumption 0.304 kg / (h PS) with continuous
output GE-10: 0.281 kg / (h PS)
turbine three-stage axial turbine, two stages drive the compressor and one stage (two stages with GE-16) acts on the output shaft. Inlet temperature 1600 ° F (871 ° C). Exhaust outlet vertically downwards or 90 ° to the right or left
Max. Diameter 0.406 m, GE-10: 0.478 m
length 1,397 m, GE-10: 1,500 m
Weight (dry) 123 kg (without gear),
153 kg (with reduction gear)
Nominal shaft power kW (1050 WPS) starting power

literature

  • Leonard Bridgman (Ed.): Jane's All The World's Aircraft - 1959-60 , Sampson Low, Marston & Company Ltd., London, 1959
  • John WR Taylor (Ed.): Jane's All The World's Aircraft - 1965-66 , Sampson Low, Marston & Company Ltd., London, 1965
  • John WR Taylor (Ed.): Jane's All The World's Aircraft - 1978-79 , McDonald and Jane's Publishers, London, 1978
  • John WR Taylor (Ed.): Jane's All The World's Aircraft - 1983-84 , Jane's Publishing Company, London, 1983

Individual evidence

  1. ↑ Use on watercraft
  2. ↑ Jane's 1959-60, pp. 529 f.

Web links

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