1975 flight test projected: Component technology program meeting development goal", Heavy lift helicopter — Prototype technical summary, National Aeronautics and Space Administration, Powerplant studies for shaft-driven helicopter, Survey of P-3C mission profiles for development of the T56-A-14 duty cycle, National Transportation Safety Board: Aviation accident final report (ATL93MA055), Long range acquisition estimates (FY 88 base year projections), MPC 75 feasibility study - Summary report: B1 - Project definition, Congress of the International Council of the Aeronautical Sciences, "The things it carried: How an unremarkable Convair C-131H transported cops, patients, prisoners, and Gerald Ford", Aircraft/auxiliary power units/aerospace ground support equipment emission factors, "Enhanced T56 engine could save billions in C-130H operating costs", "Raytheon given $573M contract for continued missile production", "Army revises HLH program, sets competitive prototype tests", "Allison industrial gas turbines 501-K, 570-K", "Allison moves to boost its airline sales". Our scientists are involved in current research focused on the Martian climate and geology. Allison T56-A-1 (501-D13) Turboprop Engine, Cutaway, Motorized.  It was first flown in the nose of a B-17 test-bed aircraft in 1954. A turboprop engine is a turbine engine that drives an aircraft propeller. Apollo 11 was a global event.  In the early 1970s, Boeing Vertol selected Allison (at that time known as the Detroit Diesel Allison Division (DDAD) of General Motors) to power a dynamic-system test rig (DSTR) supporting the development of its Model XCH-62 heavy-lift helicopter (HLH) program for the U.S. Army, using the Allison 501-M62B turboshaft engine. Allison T56-A-1 In 1951, the U.S. Air Force announced a requirement for a medium-size logistic and tactical transport aircraft, which resulted in the workhorse Lockheed C-130 Hercules. The Museum in DC will remain closed. The T56-A-427 was capable of 5,912 prop shp (4,409 kW), but it was torque-limited to 5,250 prop shp (3,910 kW). The lunar module represents one of humanity’s greatest achievements: landing people on another heavenly body. The engine was designed in the 1980s to power proposed propfan aircraft such as the Boeing 7J7 and the MD-91 and MD-92 derivatives of the McDonnell Douglas MD-80. The development contract was extended temporarily to November 30, 1959, but the T61 development effort was canceled by January 1960, after USD$37.5 million had been put into the engine's development. T56 5-6 Gear Cluster, 29 tooth / 37 tooth OR 36 tooth / 31 tooth. From $88.00 . At the Smithsonian National Air and Space Museum Udvar-Hazy Center The General Electric T700 and CT7 are a family of turboshaft and turboprop engines in the 1,500–3,000 shp (1,100–2,200 kW) class. Further setbacks o…  The 501-M62B had a 13-stage compressor based on the 501-M24 demonstrator engine, which was a fixed single-shaft engine with an increased overall pressure ratio and a variable-geometry compressor, and it had an annular combustor based on the T56-A-18 and other development programs. In 1951 the U.S. Air Force announced a requirement for a medium-size logistic and tactical transport aircraft, which resulted in the workhorse Lockheed C-130 Hercules. The Pratt & Whitney T34 was an American axial flow turboprop engine designed and built by Pratt & Whitney. Its design was started in 1958, it first ran in February 1960, first flew on 30 May 1961, entered service in 1964 and has been continuously updated since. See our COVID-19 message. Naval Air Systems Command (NAVAIR) order in 2019 of 24 additional E-2D Advanced Hawkeyes (AHEs) powered by the T56-A-427A engine variant. 703-572-4118, Steven F. Udvar-Hazy Center in Chantilly, VA, Allison Division, General Motors Corporation, Length 368 cm (145.0 in.  One of the first flight-cleared YT-56 engines was installed in a C-130 nacelle on Lockheed's Super Constellation test aircraft in early 1954. A re-design of the engine ended in the same fate in September of the same year. As of 2019, it is still one of only four different contra-rotating propfan engines to have flown in service or in flight testing. "T56: Power for the Hercules, Orion, Hawkeye and Greyhound", "T56 test-bed: The Allison engine for the C-130 fitted to a Super Constellation", "AE 2100 turboprop: Power for the Hercules, Spartan, US-2 and SAAB 2000 AEW&C", Smithsonian National Air and Space Museum, "Propeller, variable-pitch, 6-blade, Dowty R391", "NOAA 'Hurricane Hunters' first to get T56 series 3.5 engine enhancement", "USAF approves production of Rolls-Royce T56 Series 3.5 upgrade", "USAF eyeing new props and upgraded engines to breathe extra life into old C-130Hs", American Institute of Aeronautics and Astronautics, "H.L.H. , Production of the T56 engine is expected to continue to at least 2026, with the U.S.  After DSTR testing was successful, the 501-62B engine was further developed into the XT701-AD-700 engine for use on the HLH. Production of the Eland ceased in 1961 when the Napier company was taken over by Rolls-Royce. , Over the years, there have been a number of engine development versions, which are grouped by series numbers. 655 Jefferson Drive, SW Gift of Allison Division, General Motors Corporation, Power/Speed: 2796 kW (3,750 eshp) at 13,820 rpm. In addition, the T56 produces approximately 750 lbf (3,336.17 N) residual thrust from its exhaust. Allison T56-A1 cutaway compressor section. Allison T56-A-1 (501-D13) Turboprop Engine, Cutaway, Motorized. The 501-M78B had the same 13-stage compressor, combustor, 2-stage gas producer turbine, and 2-stage free power turbine used on the XT701 and 570-K, but it was connected through a 6.797 reduction ratio gearbox to a 9 ft diameter (2.7 m) Hamilton Standard single-rotation propfan, containing propfan blades that were swept back 45 degrees at the tips.