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  2. QF 4.5-inch howitzer - Wikipedia

    en.wikipedia.org/wiki/QF_4.5-inch_howitzer

    QF 4.5-inch howitzer. 114 x73-86 mm R separate QF. HE shell 16 kg (35 lb) The Ordnance QF 4.5-inch howitzer was the standard British Empire field (or "light") howitzer of the First World War era. It replaced the BL 5-inch howitzer and equipped some 25% of the field artillery. It entered service in 1910 and remained in service through the ...

  3. 4.5-inch Mark 8 naval gun - Wikipedia

    en.wikipedia.org/wiki/4.5-inch_Mark_8_naval_gun

    A new type of 4.5 inch gun with a longer 55-calibre barrel, it was designed in the 1960s for the Royal Navy's new classes of frigates and destroyers.The weapon, built by Vickers Ltd Armament Division, was developed by the Royal Armament Research and Development Establishment using the Ordnance, QF 105 mm L13 of the Abbot self-propelled gun as a starting point (it used electrical primers).

  4. 14.5 × 114 mm - Wikipedia

    en.wikipedia.org/wiki/14.5_×_114_mm

    Cartridge dimensions. The 14.5 × 114 mm has 42.53 ml (655 grains H 2 O) cartridge case capacity. The exterior shape of the case was designed to promote reliable case feeding and extraction in bolt-action rifles, semi-automatic rifles, and heavy machine guns alike, under extreme conditions. 14.5×114 mm maximum cartridge dimensions.

  5. List of unusual units of measurement - Wikipedia

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

    A 50 m × 25 m (164 ft × 82 ft) Olympic swimming pool, built to the FR3 minimum depth of 2 metres (6.6 ft) would hold 2,500 m 3 (2,500,000 L; 550,000 imp gal; 660,000 US gal; 2.0 acre⋅ft). The US National Institute of Standards and Technology (NIST) defines the Olympic swimming pool as 1 million litres, which is the approximate volume of the ...

  6. Ancient Greek units of measurement - Wikipedia

    en.wikipedia.org/wiki/Ancient_Greek_units_of...

    3.42 m 2 (36.8 sq ft) square six-foot akaina ἄκαινα: 100 podes 9.50 m 2 (102.3 sq ft) rod hēmiektos ἡμίεκτος: 833 + 1 ⁄ 3 podes 79.2 m 2 (853 sq ft) half a sixth hektos ἕκτος: 1,666 + 2 ⁄ 3 podes 158.3 m 2 (1,704 sq ft) a sixth of a plethron aroura ἄρουρα: 2,500 podes 237.5 m 2 (2,556 sq ft) field plethron ...

  7. Apollo command and service module - Wikipedia

    en.wikipedia.org/wiki/Apollo_command_and_service...

    A thermal control system using a mixture of water and ethylene glycol as coolant dumped waste heat from the CM cabin and electronics to outer space via two 30-square-foot (2.8 m 2) radiators located on the lower section of the exterior walls, one covering sectors 2 and 3 and the other covering sectors 5 and 6.

  8. Type 11 light machine gun - Wikipedia

    en.wikipedia.org/wiki/Type_11_light_machine_gun

    30-round, hopper system using 6x 5-round stripper clips. Sights. Iron. The Type 11 light machine gun (十一年式軽機関銃, Jyūichinen-shiki Kei-kikanjū) was a light machine gun used by the Imperial Japanese Army in the interwar period and during World War II. [3] Adopted as the Imperial Japanese Army's first light machine gun, the Type ...

  9. Orders of magnitude (length) - Wikipedia

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

    The centimetre (SI symbol: cm) is a unit of length in the metric system equal to 10 −2 metres (⁠ 1 / 100 ⁠ m = 0.01 m). To help compare different orders of magnitude , this section lists lengths between 10 −2 m and 10 −1 m (1 cm and 1 dm).