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A needlegun scaler, needle scaler, or needle-gun is a tool used to remove rust, mill scale, and old paint from metal surfaces. [2] The tool is used in metalwork applications as diverse as home repair, automotive repair, and shipboard preservation.
The Klimov VK-1 was the first Soviet jet engine to see significant production. It was developed by Vladimir Yakovlevich Klimov [] and first produced by the GAZ 116 works. . Derived from the Rolls-Royce Nene, the engine was also built under licence in China as the Wopen
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Jet noise may be reduced by adding features to the exit of the nozzle which increase the surface area of the cylindrical jet. Commercial turbojets and early by-pass engines typically split the jet into multiple lobes. Modern high by-pass turbofans have triangular serrations, called chevrons, which protrude slightly into the propelling jet.
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]
Mikuni Corporation (株式会社ミクニ, Kabushiki gaisha Mikuni) is a Japanese Automotive products manufacturing company. Their business activities is focused on carburetors, fuel injectors and other automobile and motorcycle related equipment.
The Pratt & Whitney J75 (civilian designation: JT4A) is an axial-flow turbojet engine first flown in 1955. A two-spool design in the 17,000 lbf (76 kN) thrust class, the J75 was essentially the bigger brother of the Pratt & Whitney J57 (JT3C).
In the Halo video games, originally developed by Bungie, the Needler is an alien weapon that fires homing crystalline needles that explode after a delay. In 2010, the Needle Rifle was introduced to the series with the release of Halo: Reach. In Call of Duty: Black Ops 4, a flechette rifle called the S6 Stingray can be unlocked. It is a two ...