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Hush kit for the Pratt and Whitney JT8D-1 through -17 engines Two JT4As installed on a KLM DC-8. A hush kit is an aerodynamic device used to help reduce the noise produced by older aircraft jet engines. These devices are typically installed on older turbojet and low-bypass turbofan engines, as they are much louder than later high-bypass ...
It used a single-stage fan powered by the same turbine shaft as the main engine compressor, as opposed to the Pratt & Whitney designs that were using a separate power shaft to run the fan. The GE design proved to be difficult to start and operate and was not developed further. [5] In 1955 Jack Parker took over GE's Aircraft Gas Turbine division.
Often ”rectiling” method is used to make sure linkage is given. Double Degree of Freedom (DDOF) liners are made by two layers of honeycomb cells divided by a porous septum. In particular, a DDOF liner is constituted by a top facing-sheet, a first honeycomb layer, a porous septum, a second honeycomb layer, and finally an impervious back-skin.
The propelling nozzle converts a gas turbine or gas generator into a jet engine. Power available in the gas turbine exhaust is converted into a high speed propelling jet by the nozzle. The power is defined by typical gauge pressure and temperature values for a turbojet of 20 psi (140 kPa) and 1,000 °F (538 °C). [18]
The engine weighs approximately 2,500 lb (1,100 kg) and occupies a volume of 40 cu ft (1.1 m 3), measuring 63 in × 40 in × 28 in (1,600 mm × 1,020 mm × 710 mm). [4] The engine can use a variety of fuels, including jet fuel, gasoline, diesel and marine diesel. [2] The engine is a three-shaft machine composed of five sub-modules: [4]
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The General Electric LM6000 is a turboshaft aeroderivative gas turbine engine. The LM6000 is derived from the CF6-80C2 aircraft turbofan. It has additions and modifications designed to make it more suitable for marine propulsion, industrial power generation, and marine power generation use.
Robins are a much loved Christmas icon, but wind turbines installed in their habitat are affecting their song, with worrying consequences. Robin hushed: wind turbines are making songbirds change ...