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  2. Type 44 torpedo boat - Wikipedia

    en.wikipedia.org/wiki/Type_44_torpedo_boat

    Dedicated anti-aircraft defense would have been provided by ten 3.7-centimeter (1.5 in) guns [Note 3] in five twin mounts for which 20,000 rounds would have been stowed. The Type 44s would also have been equipped with six above-water 533-millimeter (21.0 in) torpedo tubes in two triple mounts amidships and to carry 30 mines .

  3. Type IX submarine - Wikipedia

    en.wikipedia.org/wiki/Type_IX_submarine

    13,850 nmi (25,650 km; 15,940 mi) at 10 knots (19 km/h; 12 mph) surfaced 63 nmi (117 km; 72 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged Type IXC/40 was an improved Type IXC with slightly increased range and surfaced speed.

  4. Type U 93 submarine - Wikipedia

    en.wikipedia.org/wiki/Type_U_93_submarine

    Compared to the previous type 87, the 93s were 5.75 metres (18 ft 10 in) longer, while the pressure hull was 5.98 m (19 ft 7 in) longer. [3] They were 1.2 knots (2.2 km/h; 1.4 mph) faster on the surface, and unchanged at 8.6 knots (15.9 km/h; 9.9 mph) submerged. Range decreased 2,360 nmi (4,370 km; 2,720 mi) at 8 knots (15 km/h; 9.2 mph), to ...

  5. Orders of magnitude (length) - Wikipedia

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

    1.2 cm – diameter of a die; 1.5 cm – length of a very large mosquito; 1.6 cm – length of a Jaragua Sphaero, a very small reptile; 1.7 cm – length of a Thorius arboreus, the smallest salamander [112] 2 cm – approximate width of an adult human finger; 2.54 cm – 1 inch; 3.08568 cm – 1 attoparsec; 3.4 cm – length of a quail egg [113]

  6. List of conversion factors - Wikipedia

    en.wikipedia.org/wiki/List_of_conversion_factors

    2.54 cm ≡ 1 ⁄ 36 yd ≡ 1 ⁄ 12 ft ≡ 0.0254 m league (land) lea ≈ 1 hour walk, Currently defined in US as 3 Statute miles, [3] but historically varied from 2 to 9 km ≈ 4828 m: light-day: ≡ 24 light-hours ≡ 2.590 206 837 12 × 10 13 m: light-hour: ≡ 60 light-minutes ≡ 1.079 252 8488 × 10 12 m: light-minute: ≡ 60 light ...

  7. L 20e α-class battleship - Wikipedia

    en.wikipedia.org/wiki/L_20e_α-class_battleship

    The battleships were the same size as the battlecruisers and L 1 and L 3 had the same armament of eight 38 cm guns (L 2 would have mounted ten of those guns) but they would have had a top speed of 25 to 26 knots (46 to 48 km/h; 29 to 30 mph) compared to the 29 to 29.5 knots (53.7 to 54.6 km/h; 33.4 to 33.9 mph) speeds of the Ersatz Yorck s and ...

  8. List of unusual units of measurement - Wikipedia

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

    [25] [26] The standard FIFA football pitch for international matches is 105 m (344 ft) long by 68 m (223 ft) wide (7,140 m 2 or 0.714 ha or 1.76 acres); FIFA allows for a variance of up to 5 m (16.4 ft) in length in either direction and 7 m (23.0 ft) more or 4 m (13.1 ft) less in width (and larger departures if the pitch is not used for ...

  9. H-class battleship proposals - Wikipedia

    en.wikipedia.org/wiki/H-class_battleship_proposals

    Close-range air defense was provided by a battery of sixteen 3.7 cm (1.5 in) L/83 C33 and twenty-four 2 cm (0.79 in) C38 guns. The 3.7 cm guns were placed in eight twin mounts while the 2 cm guns were arrayed in six Flakvierling quadruple mountings. [18] The 3.7 cm guns were closely grouped amidships and had a single, common ammunition hoist.