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The Pratt & Whitney PW1000G family, also marketed as the Pratt & Whitney GTF (geared turbofan), is a family of high-bypass geared turbofan engines produced by Pratt & Whitney. Following years of development and testing on various demonstrators, the program officially launched in 2008 with the PW1200G destined for the Mitsubishi SpaceJet (a ...
The Garrett TFE731 (now Honeywell TFE731) is a family of geared turbofan engines commonly used on business jet aircraft. Garrett AiResearch originally designed and built the engine, which due to mergers was later produced by AlliedSignal and now Honeywell Aerospace .
In a geared turbofan, a planetary reduction gearbox between the fan and the LP shaft allows the latter to run at a higher rotational speed thus enabling fewer stages to be used in both the LP turbine and the LP compressor, increasing efficiency and reducing weight. However, some energy will be lost as heat in the gear mechanism and weight saved ...
The Pratt & Whitney F100 (company designation JTF22 [1]) is a low bypass afterburning turbofan engine. It was designed and manufactured by Pratt & Whitney to power the U.S. Air Force's "FX" initiative in 1965, which became the F-15 Eagle.
The U.S. government's auto safety regulator has ended a 2 1/2-year investigation into Ford engine failures after the company replaced engines or extended the warranty on some vehicles.
The recall encompasses 2015-2020 Acura TLX and the 2016-2020 MDX. 2018 and 2019 Honda Odysseys, 2016, 2018 and 2019 Pilots, and Ridgelines manufactured between 2017 and 2019 are also potentially ...
The Transportation Recall Enhancement, Accountability and Documentation or TREAD Act (Pub. L. 106–414 (text)) is a United States federal law enacted in the fall of 2000. This law intended to increase consumer safety through mandates assigned to the National Highway Traffic Safety Administration (NHTSA).
The following table gives the efficiency for several engines when running at 80% throttle, which is approximately what is used in cruising, giving a minimum SFC. The efficiency is the amount of power propelling the plane divided by the rate of energy consumption. Since the power equals thrust times speed, the efficiency is given by