Jump to content

Boeing T50

From Wikipedia, the free encyclopedia
The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.
T50
Type Turboshaft
National origin United States
Manufacturer Boeing
Major applications QH-50 DASH
Developed into Boeing T60

The Boeing T50 (company designation Model 502) was a small turboshaft engine produced by Boeing. It was the first turboshaft engine to ever power a helicopter: a modified Kaman K-225 in 1951.[1] Based on Boeing's earlier Model 500 gas generator, the T50's main application was in the QH-50 DASH helicopter drone of the 1950s. An up-rated version designated Model 550 was developed to power the QH-50D and was given the military designation T50-BO-12.

Two T50 were tested on a HTK-1 (Kaman HH-43 Huskie) in the 1950s, which was the first test of twin turbine engine on a helicopter.[2]

Variants

T50-BO-1
T50-BO-2
T50-BO-4
270 hp (201.34 kW) at 6,000 output rpm, military rating turboprop.[3]
T50-BO-6
T50-BO-8
300 hp (223.71 kW) at 5,950 output rpm, revised reduction gear ratio, fuelsystem and other changes.[3]
T50-BO-8A
T50-BO-10
330 hp (246.08 kW) at 6,000 output rpm[3]
T50-BO-12
502-1-1
Auxiliary power unit
502-2E
Turboprop, 175 hp (130.50 kW) at 2,900 output rpm max. continuous at sea level.[4]
502-7B
Compressed air generator.[4]
502-8A
Turboshaft.[4]
502-8B
Turboprop, 210 hp (156.60 kW) at 37,500 compressor rpm for take-off.[4]
502-10B
Turboprop, 270 hp (201.34 kW) at 37,500 compressor rpm for take-off.[4]
502-10C
Turboshaft power unit / gas producer
502-10F
[5]
502-10V
(T50-BO-4)
502-10VB
325 hp (242.35 kW) at 3,000 output rpm, variant of -10V / T50-B0-4 with revised reduction gear ratio.[3]
502-10VC
(T50-BO-8)
502-11
Compressed air generator.[4]
502-11B
502-12B
502-W
502-14
(T50-BO-10)
550-1
(T50-BO-12)

Applications

T50 (Model 502)
GT502

Specifications (T50-BO-10 / 502-14)

A QH-50D anti-submarine drone aboard the USS Allen M. Sumner (DD-692) in the late 1960s, with the T50 engine visible on the right

Data from Jane's All the World's Aircraft 1962-63.[3]

General characteristics

  • Type: Turboshaft
  • Length: 37.2 in (945 mm)
  • Diameter: 22.5 in (572 mm)
  • Dry weight: 215 lb (98 kg)

Components

  • Compressor: Single-stage centrifugal flow
  • Combustors: 2 can combustors
  • Turbine: 1 axial gas generator power turbine stage and 1 axial free-power turbine stage
  • Fuel type: Aviation kerosene
  • Oil system: pressure spray/splash, oil specification: MIL-L-7808

Performance

See also

Related development

Related lists

References

Notes

  1. ^ Schenderlein, John; Clayton, Tyler (2015-12-17). "Comparison of Helicopters Turboshaft Engines" (PDF). American Institute of Aeronautics and Astronautics: 2. Retrieved 2023-06-07.
  2. ^ "Kaman Helicopters". www.airvectors.net. Retrieved 2024-05-16.
  3. ^ a b c d e Taylor, John W.R. FRHistS. ARAeS (1962). Jane's All the World's Aircraft 1962-63. London: Sampson, Low, Marston & Co Ltd.
  4. ^ a b c d e f Bridgman, Leonard (1955). Jane's all the World's Aircraft 1955-56. London: Jane's all the World's Aircraft Publishing Co. Ltd.
  5. ^ Bridgman, Leonard, ed. (1959). Jane's all the World's Aircraft 1959–60. London: Sampson Low, Marston & Co. Ltd. pp. 521–522.

Bibliography

  • Taylor, John W.R. FRHistS. ARAeS (1962). Jane's All the World's Aircraft 1962-63. London: Sampson, Low, Marston & Co Ltd.
  • Gunston, Bill (2006). World Encyclopedia of Aero Engines, 5th Edition. Phoenix Mill, Gloucestershire, England, UK: Sutton Publishing Limited. p. 79. ISBN 0-7509-4479-X.
  • Leyes II, Richard A.; William A. Fleming (1999). The History of North American Small Gas Turbine Aircraft Engines. Washington, DC: Smithsonian Institution. ISBN 1-56347-332-1.
Wikimedia Commons has media related to Boeing T50.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Boeing_T50&oldid=1234817334"