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2. Gallaudet PW-4 - Wikipedia

   en.wikipedia.org/wiki/Gallaudet_PW-4

   The Gallaudet PW-4 was a prototype biplane fighter aircraft built by the Gallaudet Aircraft Company. It was one of the last projects by the company before it was taken over by Consolidated Aircraft. It was all-metal and powered by a Packard 11A-1237 engine.

3. Wire brush - Wikipedia

   en.wikipedia.org/wiki/Wire_brush

   Wire brush Round wire brushes. A wire brush is a tool consisting of a brush whose bristles are made of wire, most often steel wire. The steel used is generally a medium- to high-carbon variety and very hard and springy. Other wire brushes feature bristles made from brass or stainless steel, depending on application.

4. Pratt & Whitney PW4000 - Wikipedia

   en.wikipedia.org/wiki/Pratt_&_Whitney_PW4000

   The Pratt & Whitney PW4000 is a family of dual-spool, axial-flow, high-bypass turbofan aircraft engines produced by Pratt & Whitney as the successor to the JT9D.It was first run in April 1984, was FAA certified in July 1986, and was introduced in June 1987.

5. Pratt & Whitney/Allison 578-DX - Wikipedia

   en.wikipedia.org/wiki/Pratt_&_Whitney/Allison_578-DX

   The Pratt & Whitney/Allison 578-DX was an experimental aircraft engine, a hybrid between a turbofan and a turboprop known as a propfan.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.

6. Pratt & Whitney PW1000G - Wikipedia

   en.wikipedia.org/wiki/Pratt_&_Whitney_PW1000G

   The physical size of the gearbox was 17 inches (430 mm) in diameter, [2] or no more than half the gearbox size of the PW-Allison 578-DX propfan demonstrator engine that Pratt & Whitney worked jointly on with Allison in the 1980s. The gearbox consisted of 40 components, weighed 500 lb (230 kg), and shared a 3-U.S.-gallon (11-liter) oil tank with ...

7. News, Politics, Sports, Mail & Latest Headlines - AOL.com

   homepage.aol.com/news

   Get breaking news and the latest headlines on business, entertainment, politics, world news, tech, sports, videos and much more from AOL

8. Brushed metal - Wikipedia

   en.wikipedia.org/wiki/Brushed_metal

   Brushed stainless steel or dull polished metal [1] is metal with a unidirectional satin finish. It is produced by polishing the metal with a 120–180 grit belt or wheel then softening with an 80–120 grit greaseless compound or a medium non-woven abrasive belt or pad. Commonly brushed metals include stainless steel, aluminium and nickel.

9. US factory activity slumps further in December as tariffs loom

   www.aol.com/news/us-factory-activity-slumps...

   U.S. manufacturing activity contracted further in December, with a measure of factory output dropping to the lowest level in more than 4-1/2 years amid worries that higher tariffs would raise ...