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  2. Allison T40 - Wikipedia

    en.wikipedia.org/wiki/Allison_T40

    A combining reduction gearbox was driven via extension shafts from the power sections. Each transmission shaft incorporated a clutch to allow the power sections to be run independently. [1] T40 engines on the XP5Y-1 prototype in 1950. Accessories included a Master Control Unit, mounted above the compressors, and an air driven starter on the ...

  3. Allison T56 - Wikipedia

    en.wikipedia.org/wiki/Allison_T56

    The Allison T56 is an American single-shaft, modular design military turboprop with a 14-stage axial flow compressor driven by a four-stage turbine. It was originally developed by the Allison Engine Company for the Lockheed C-130 Hercules transport [3] entering production in 1954.

  4. Allison T56 variants - Wikipedia

    en.wikipedia.org/wiki/Allison_T56_variants

    The Allison T56 turboprop engine has been developed extensively throughout its production run, the many variants are described by the manufacturer as belonging to four main series groups. Initial civil variants (Series I) were designed and produced by the Allison Engine Company as the 501-D and powered the Lockheed C-130 Hercules .

  5. Allison Engine Company - Wikipedia

    en.wikipedia.org/wiki/Allison_Engine_Company

    One of Allison's most successful projects is the Model 250 turboshaft/turboprop engine family, which was started by the company in the early 1960s, when helicopters started to be powered by turbine, rather than reciprocating, engines. Allison turbine engines were used to power Bell 206 Jet Ranger and Long Ranger helicopters as well as the ...

  6. Rolls-Royce AE 2100 - Wikipedia

    en.wikipedia.org/wiki/Rolls-Royce_AE_2100

    On July 11, 1989, Saab-Scania A.B. selected the GMA 2100 to power its new Saab 2000, a 50-seat stretch of the Saab 340 turboprop, in a US$500 million deal. [2] In July 1990, Industri Pesawat Terbang Nusantara (IPTN) of Indonesia picked the GMA 2100 as the engine for the twin-engine N-250 regional airliner. [3]

  7. Allison Transmission - Wikipedia

    en.wikipedia.org/wiki/Allison_Transmission

    Allison Transmission Holdings Inc. is an American manufacturer of commercial duty automatic transmissions and hybrid propulsion systems. Allison products are specified by over 250 vehicle manufacturers and are used in many market sectors, including bus, refuse, fire, construction, distribution, military, and specialty applications.

  8. Allison Model 250 - Wikipedia

    en.wikipedia.org/wiki/Allison_Model_250

    Data from The Instrumentation Design And Control of a T63-A-700 Gas Turbine Engine General characteristics Type: Turboshaft Length: 40.5 in (1,029 mm) Diameter: 22.5 in (572 mm) Dry weight: 138.5 lb (63 kg) dry Components Compressor: 6-stage axial + 1-stage centrifugal compressors Combustors: Single can combustion chamber Turbine: 2-stage axial gas generator power turbine + 2-stage axial free ...

  9. Rolls-Royce T406 - Wikipedia

    en.wikipedia.org/wiki/Rolls-Royce_T406

    The T406 is based on the Allison T56 turboprop from the P-3 and the C-130, with the free power turbine of the Allison T701 turboshaft from the defunct Heavy Lift Helicopter program. It was selected over the Pratt & Whitney PW3000 and General Electric GE27 competing for the US Army's Modern Technology Demonstrator Engine program. [ 8 ]