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  2. Radar beacon - Wikipedia

    en.wikipedia.org/wiki/Radar_beacon

    Radar beacon. Racon signal as seen on a radar screen. This beacon receives using sidelobe suppression and transmits the letter "Q" in Morse code near Boston Harbor (Nahant) 17 January 1985. Radar beacon (short: racon) is – according to article 1.103 of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR) [1 ...

  3. Nickel defense - Wikipedia

    en.wikipedia.org/wiki/Nickel_defense

    Nickel defense. In American football, a nickel defense (also known as a 425 or 3–3–5) is any defensive alignment that uses five defensive backs, of whom the fifth is known as a nickelback. The original and most common form of the nickel defense features four down linemen and two linebackers. Because the traditional 42 form ...

  4. Martin AN/GSG-5 Battery Integration and Radar Display ...

    en.wikipedia.org/wiki/Martin_AN/GSG-5_Battery...

    The Martin AN/GSG-5 Battery Integration and Radar DIsplay Equipment (BIRDIE)[1] was a transportable electronic fire distribution center for automated command and control of remote surface-to-air missile launch batteries. The solid state radar netting system replaced the vacuum tube AN/FSG-1 at 3 United States Missile Master bunkers (Fort Lawton Air Force Station, Washington; [2] Fort Heath ...

  5. Raytheon Missiles & Defense - Wikipedia

    en.wikipedia.org/wiki/Raytheon_Missiles_&_Defense

    The business was a combination of two Raytheon Company legacy businesses, Raytheon Integrated Defense Systems (IDS) and Raytheon Missile Systems (RMS), which operated a plant formerly owned by the Hughes Aircraft Company. [citation needed] Raytheon had been criticized for selling arms to Saudi Arabia that were used in the Yemen Civil War. These sales were blocked by the Obama administration in ...

  6. Seattle Cover 3 defense - Wikipedia

    en.wikipedia.org/wiki/Seattle_Cover_3_defense

    The Seattle 4–3 hybrid defense is based on the 4–3 under front used by Monte Kiffin. [4][5][n 1] Unlike the standard 4–3 under, in which all the defensive linemen employ one gap techniques, the Seattle variant has a split personality. In its best known form, half the line uses 3-4 two gap principles, while the other half acts like a one gap 4–3. [6][7] Also unlike many defenses, where ...

  7. 5–2 defense - Wikipedia

    en.wikipedia.org/wiki/5–2_defense

    The 52 (or 54, or 3–4, or Okie, or 50 defense) is a popular defense at all levels of coaching, in part because it has simple reads, is easy to coach, and allows coaches to concentrate on technique. [14] By the 1990s, however, coaches were having issues with the demands of finding players who could handle the nose guard and defensive ...

  8. MIM-104 Patriot - Wikipedia

    en.wikipedia.org/wiki/MIM-104_Patriot

    [12] [13] The main gallium nitride (GaN)-based AESA array measures 9 ft × 13 ft (2.7 m × 4.0 m), is a bolt-on replacement for the current antenna, and is oriented toward the primary threat; two new rear panel arrays are a quarter the size of the main array and let the system look behind and to the sides, providing 360-degree coverage.

  9. Raytheon - Wikipedia

    en.wikipedia.org/wiki/Raytheon

    The Raytheon Company was a major U.S. defense contractor and industrial corporation with manufacturing concentrations in weapons and military and commercial electronics. It was previously involved in corporate and special-mission aircraft until early 2007. Raytheon was the world's largest producer of guided missiles. [3] In April 2020, the Raytheon Company merged with United Technologies ...

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