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Metric prefixes; Text Symbol Factor or; yotta Y 10 24: 1 000 000 000 000 000 000 000 000: zetta Z 10 21: 1 000 000 000 000 000 000 000: exa E 10 18: 1 000 000 000 000 000 000: peta P 10 15: 1 000 000 000 000 000: tera T
The 41 cm/45 3rd Year Type naval gun is a 41-centimeter (16.1 in) breech-loading naval gun designed during World War I for the Imperial Japanese Navy.It served as the primary armament in the Nagato-class dreadnoughts completed after the end of the war and in coast defense mountings.
Originally in 1945, the divisions were based on the ring inside diameter in steps of 1 ⁄ 64 inch (0.40 mm). [6] However, in 1987 BSI updated the standard to the metric system so that one alphabetical size division equals 1.25 mm of circumferential length. For a baseline, ring size C has a circumference of 40 mm. [7]
The double-sided impeller was 28.8 inches (73 cm) in diameter, compared to 20.68 in (52.5 cm) for the Derwent I, to produce an airflow of 80 lb/s (36 kg/s), while the overall diameter of the engine was 49.5 inches (126 cm). A scaled up Derwent of the same thrust would have had a 60-inch (150 cm) diameter.
till 1934: 5 twin 7.9-inch type D 40° from 1934: 5 twin 8.0-inch type D 40° Takao-class heavy cruisers Takao, Atago, Chokai. 5 twin 8.0-inch type E 70° Maya. 5 twin 8.0-inch type E 55° Mogami-class heavy cruisers: Mogami, Mikuma, Kumano, Suzuya. till 1939: 5 triple 6.1-inch 55° (classified as light cruiser) from 1939: 5 twin 8.0-inch type ...
The 16-inch gun was a built-up gun constructed in a length of 45 calibers. The Mark 1 had an A tube, jacket, liner, and seven hoops , four locking rings and a screw-box liner. When the gun was designed in August 1913 it was referred to as the "Type Gun (45 Cal.)" as an effort to conceal the gun's true size of 16 inches.
The rifle itself is offered in two variants: the S-5.56 A1 with a 19.9-inch barrel and 1:12 pitch rifling (1 turn in 305 mm), optimized for the use of the M193 Ball cartridge; and the S-5.56 A3 with a 20-inch barrel and a 1:7 pitch rifling (1 turn in 177, 8 mm), optimized for the use of the SS109 cartridge. [216]
Ship Main guns Armor Displacement Propulsion Service Laid down Commissioned Fate HMS Invincible 8 × 12-inch (305 mm) [28] 6 inches (152 mm) [29] 20,420 long tons (20,748 t) [30]