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  2. Hand (unit) - Wikipedia

    en.wikipedia.org/wiki/Hand_(unit)

    101.6 mm; 10.16 cm; The hand is a non-SI unit of measurement of length standardized to 4 in (101.6 mm). ... Thus, 62 inches is fifteen and a half hands, or 15.2 hh ...

  3. List of unusual units of measurement - Wikipedia

    en.wikipedia.org/wiki/List_of_unusual_units_of...

    The hand is a non-SI unit of length equal to exactly 4 inches (101.6 mm). It is normally used to measure the height of horses in some English-speaking countries, including Australia, [4] Canada, Ireland, the United Kingdom, and the United States.

  4. QF 4-inch naval gun Mk I – III - Wikipedia

    en.wikipedia.org/wiki/QF_4-inch_naval_gun_Mk_I...

    The gun was intended to be a more powerful alternative to the quick-firing 3-inch QF 12-pounder gun, and a faster-firing replacement for the BL 4-inch gun. It was mounted on the following ships : Pelorus-class third-class protected cruisers of 1896; Condor-class sloops of 1898; Cadmus-class sloops of 1900; Topaze-class third-class cruisers ...

  5. List of scale model sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_scale_model_sizes

    101.60 mm P scale - ridable narrow gage park railroads, steamrollers, traction engines, Ball-jointed dolls, Super Dollfie, Dollfie Dream 1:2.4: 5 in: 127.00 mm Park railroads, where 15 in (381 mm) minimum gauge models are based on 3 ft (914 mm) narrow gauge prototypes 1:2: 6 in: 152.40 mm "My Size" (3 ft) fashion dolls: 1:1.8 Playhome ...

  6. QF 4-inch naval gun Mk V - Wikipedia

    en.wikipedia.org/wiki/QF_4-inch_naval_gun_Mk_V

    4-inch (101.6 mm) Breech: horizontal sliding-block: Recoil: hydro-pneumatic or hydro-spring 15 inches (380 mm) Elevation: mounting dependent: Traverse: mounting ...

  7. Orders of magnitude (length) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(length)

    The millimetre (SI symbol: mm) is a unit of length in the metric system equal to 10 −3 metres (⁠ 1 / 1 000 ⁠ m = 0.001 m). To help compare different orders of magnitude , this section lists lengths between 10 −3 m and 10 −2 m (1 mm and 1 cm).

  8. List of drill and tap sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_drill_and_tap_sizes

    Example (inch, coarse): For size 7 ⁄ 16 (this is the diameter of the intended screw in fraction form)-14 (this is the number of threads per inch; 14 is considered coarse), 0.437 in × 0.85 = 0.371 in. Therefore, a size 7 ⁄ 16 screw (7 ⁄ 16 ≈ 0.437) with 14 threads per inch (coarse) needs a tap drill with a diameter of about 0.371 inches.

  9. QF 4-inch naval gun Mk XVI - Wikipedia

    en.wikipedia.org/wiki/QF_4-inch_naval_gun_Mk_XVI

    4-inch (101.6 mm) Breech: vertical sliding-block: Recoil: hydro - pneumatic 831 millimetres (33 in) Elevation: mounting dependent (-10 to 80 deg on H.A. twin mark XIX mount) [3] Traverse: mounting dependent: Rate of fire: 15–20 rounds per minute [4] Muzzle velocity: 2,660 feet per second (811 m/s) Maximum firing range