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  2. Receiver (firearms) - Wikipedia

    en.wikipedia.org/wiki/Receiver_(firearms)

    A disassembled Mauser action showing a partially disassembled receiver and bolt. In firearms terminology and law, the firearm frame or receiver is the part of a firearm which integrates other components by providing housing for internal action components such as the hammer, bolt or breechblock, firing pin and extractor, and has threaded interfaces for externally attaching ("receiving ...

  3. Fairchild Republic A-10 Thunderbolt II - Wikipedia

    en.wikipedia.org/wiki/Fairchild_Republic_A-10...

    It is accurate enough to place 80 percent of its shots within a 40-foot (12.4 m) diameter circle from 4,000 feet (1,220 m) while in flight. [79] The GAU-8 is optimized for a slant range of 4,000 feet (1,220 m) with the A-10 in a 30-degree dive. [80] Front view of the A-10's GAU-8 installation. The aircraft's fuselage was designed around the cannon.

  4. Milling (machining) - Wikipedia

    en.wikipedia.org/wiki/Milling_(machining)

    The jig borer popularized the ideas of coordinate dimensioning (dimensioning of all locations on the part from a single reference point); working routinely in "tenths" (ten-thousandths of an inch, 0.0001") as an everyday machine capability; and using the control to go straight from drawing to part, circumventing jig-making. In 1920 the new ...

  5. Lockheed F-117 Nighthawk - Wikipedia

    en.wikipedia.org/wiki/Lockheed_F-117_Nighthawk

    F-117 Nighthawk F-117 flying over mountains in Nevada in 2002 General information Type Stealth attack aircraft National origin United States Manufacturer Lockheed Corporation Status Retired from combat, used as training aircraft as of 2025 Primary user United States Air Force Number built 64 (5 YF-117As, 59 F-117As) History Introduction date October 1983 ; 41 years ago (1983-10) First flight ...

  6. Grumman F-14 Tomcat - Wikipedia

    en.wikipedia.org/wiki/Grumman_F-14_Tomcat

    The wings have a two-spar structure with integral fuel tanks. Around 25% of the structure is made of titanium, including the wing box, wing pivots, and upper and lower wing skins; [47] this is a light, rigid, and strong material. Electron beam welding was used in the construction of the titanium parts. The F-14 was designed for maneuver loads ...

  7. Supermarine Spitfire - Wikipedia

    en.wikipedia.org/wiki/Supermarine_Spitfire

    The Spitfire had detachable wing tips which were secured by two mounting points at the end of each main wing assembly. When the Spitfire took on a role as a high-altitude fighter (Marks VI and VII and some early Mk VIIIs), the standard wing tips were replaced by extended, "pointed" tips which increased the wingspan from 36 ft 10 in (11.23 m) to ...

  8. 80 Plus - Wikipedia

    en.wikipedia.org/wiki/80_Plus

    80 Plus (trademarked 80 PLUS) is a voluntary certification program launched in 2004, intended to promote efficient energy use in computer power supply units (PSUs). Certification is acquirable for products that have more than 80% energy efficiency at 20%, 50% and 100% of rated load, and a power factor of 0.9 or greater at 100% load.

  9. 1980 United States presidential election - Wikipedia

    en.wikipedia.org/wiki/1980_United_States...

    Anderson, who many thought would handily dispatch Reagan, managed only a narrow win, according to many in the media at that time, with Reagan putting up a much stronger performance than expected. Despite the narrow win in the debate, Anderson, who had been as high as 20% in some polls, and at the time of the debate was over 10%, dropped to ...