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  2. List of the largest cannon by caliber - Wikipedia

    en.wikipedia.org/wiki/List_of_the_largest_cannon...

    Twenty-inch (508 mm) Rodman and Dahlgren smoothbore cannons were cast in 1864 during the American Civil War [citation needed]. The Rodmans were used as seacoast defense. Although not used as intended, two 20-inch Dahlgrens were intended to be mounted in the turrets of USS Dictator and USS Puritan.

  3. Inch - Wikipedia

    en.wikipedia.org/wiki/Inch

    The inch (symbol: in or ″) is a unit ... Johansson's compromise was to manufacture gauge blocks with a nominal size of 25.4mm, with a reference temperature of 20 ...

  4. Thousandth of an inch - Wikipedia

    en.wikipedia.org/wiki/Thousandth_of_an_inch

    A thousandth of an inch is a derived unit of length in a system of units using inches. Equal to 1 ⁄ 1000 of an inch, a thousandth is commonly called a thou / ˈ θ aʊ / (used for both singular and plural) or, particularly in North America, a mil (plural mils). The words are shortened forms of the English and Latin words for "thousand" (mille ...

  5. List of naval guns by caliber - Wikipedia

    en.wikipedia.org/wiki/List_of_naval_guns_by_caliber

    20 mm (0.79 in) Madsen 20 mm cannon Denmark: World War II 20 mm (0.79 in) 20 mm Oerlikon Switzerland: World War II - Cold War 20 mm (0.79 in) 20 mm Polsten Poland: World War II - Cold War 20 mm (0.79 in) 2 cm/65 C/30 Nazi Germany: World War II 20 mm (0.79 in) 20 mm akan m/40 (Bofors 20 mm automatic gun L/70 model 1940) Sweden

  6. List of scale model sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_scale_model_sizes

    Fontanini produces 5 inch nativity scene figures at this scale. 1:14: 0.8571428 in: 21.77 mm Tamiya Tamiya 56301 RC 1:14 King Hauler, RC Tractor Trucks 1:14 Scale. 1:13.71: 22.225 mm Model railway scratchbuilders' scale at 7 ⁄ 8 inches to a foot, commonly used with 45 mm gauge track to represent 2 ft gauge prototypes. 1:13: 59 ⁄ 64 in: 23.44 mm

  7. Columbiad - Wikipedia

    en.wikipedia.org/wiki/Columbiad

    The smaller-bore columbiads shared similar range factors to the older weapons, but the fifteen-inch (381 mm) models weighed over 25 tons and could fire 400-pound projectiles out to 5,000 yards (4,600 m). The monster twenty-inch model weighed over 60 tons but could range to over 5 miles (8.0 km).

  8. Big Inch - Wikipedia

    en.wikipedia.org/wiki/Big_Inch

    The Inch pipelines comprised two systems, the Big Inch pipeline and the Little Big Inch pipeline. [22] The Big Inch was a 24-inch (610 mm) pipeline for crude oil; it ran from the East Texas Oil Field at Longview , Texas, to Norris City , Illinois , and on to Phoenixville , Pennsylvania, from where it branched into 20-inch-diameter (510 mm ...

  9. Display size - Wikipedia

    en.wikipedia.org/wiki/Display_size

    412.20 48 19 41 16.14 25 9.84 1028 404.72 48 19 42 16.54 24 9.45 995 391.73 48 19 44 17.32 19 7.48 834 328.35 51 20 40 15.75 32 12.60 1259 495.67 51 20 41 16.14 30 11.81 1239 487.80 51 20 42 16.54 28 11.02 1191 468.90 51 20 43 16.93 27 10.63 1160 456.69 51 20 44 17.32 26 10.24 1139 448.43 51 20 44 17.32 25 9.84 1103 434.25 51 20 47 18.50 20 7.87