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  2. M103 heavy tank - Wikipedia

    en.wikipedia.org/wiki/M103_heavy_tank

    The M103 heavy tank (officially designated 120mm gun combat tank M103, initially T43) [3] was a heavy tank that served in the United States Army and the United States Marine Corps during the Cold War. Introduced in 1957, it served until 1974, by which time evolution of the concept of a main battle tank considered heavy tanks obsolete.

  3. Coincidence rangefinder - Wikipedia

    en.wikipedia.org/wiki/Coincidence_rangefinder

    Eyepiece image of a naval rangefinder, showing the displaced image when not yet adjusted for range. The coincidence rangefinder uses a single eyepiece. Light from the target enters the rangefinder through two windows located at either end of the instrument. At either side the incident beam is reflected to the center of the optical bar by a ...

  4. Stridsvagn 103 - Wikipedia

    en.wikipedia.org/wiki/Stridsvagn_103

    The changes were to replace the 240 horsepower (180 kW) Rolls-Royce K60 with the 290 horsepower (220 kW) Detroit Diesel Series 92, new tracks from Diehl Aerospace, external fuel tanks along the sides of the vehicle, a laser rangefinder, and the addition of the dozer blades to all of the tanks, instead of every third vehicle. Conversions began ...

  5. List of the United States military vehicles by model number

    en.wikipedia.org/wiki/List_of_the_United_States...

    For non-sequential numbers, like M1 Abrams, see bottom of list. M1 combat car, also known as the M1 light tank; M1 light motorcycle; M2 light tank, .5" MG or 37 mm gun, 11-ton

  6. M60 tank - Wikipedia

    en.wikipedia.org/wiki/M60_tank

    The M21 FCS for the M60A3 was made up of a Raytheon AN/WG-2 flash-lamp pumped ruby-laser based range finder, accurate up to 5000 meters for both the commander and gunner, a solid-state M21E1 gun data computer incorporating a muzzle reference sensor and crosswind sensor, ammunition selection, range correction and superelevation correction were ...

  7. Mathematical discussion of rangekeeping - Wikipedia

    en.wikipedia.org/wiki/Mathematical_discussion_of...

    Figure 1: Rangekeeper Coordinate System. The coordinate system has the target as its origin. The y axis value range to the target. US Navy rangekeepers during World War II used a moving coordinate system based on the line of sight (LOS) between the ship firing its gun (known as the "own ship") and the target (known as the "target").

  8. Conqueror (tank) - Wikipedia

    en.wikipedia.org/wiki/Conqueror_(tank)

    M103 heavy tank – American heavy tank sharing the Conqueror's main armament. AMX-50 – French heavy tank also armed with a 120 mm gun. IS-3 – Soviet heavy tank which the Conqueror was designed to counter. T-10 tank – Soviet heavy tank in service at the same time as the Conqueror.

  9. M24 Chaffee - Wikipedia

    en.wikipedia.org/wiki/M24_Chaffee

    The bow gunner position was eliminated in favor of ammunition stowage. A new fire-control system was installed, complete with a Simrad LV3 laser rangefinder. Norwegian firms also converted eight M24 light tanks into light armored recovery vehicles to support the NM-116. The NM-116 were retired from service in 1993. [21]