[1] Stern hull [2] Universal joints of rudder poles [3] Links of rudders [4] Shafts of rudders [5] Rudders [6] Starboard aft hydroplane [7] Hydroplane's pole [8] Starboard propeller [9] Aft torpedo tube [10] Bottles of compressed air [11] Fairing of navigation light [12] Fixed banister on deck [13] Control joint of hydroplanes [14] Control joint of rudders [15] Control shaft of hydroplanes [16] Propeller's shaft [17] Outlet of propeller's shaft / watertight valve [18] Control motor of rudders [19] Air compressor [20] Oxygen bottle [21] Auxiliary pump [22] Diesel engine's exhaust [23] Aft watertight container for a torpedo in reserve [24] Exhaust silencers [25] Control wheel of rudders [26] Torpedo in reserve [27] Control panel for larboard batteries [28] Larboard main panel of electric control [29] Lubrication valve of propeller's shaft [30] Main reduction gearbox / clutches [31] Auxiliary generators [32] Main electric motors [33] Engine gearbox / clutch [34] Bottles of pressurized oxygen [35] Bottles of compressed air for the starter of the starboard engine [36] Germaniawerft F46 Diesel engines with six cylinders and four valves (with feeding compressors) [37] Bottles of compressed air [38] Main duct of air intake [39] Control valve of air intake [40] Engine starters [41] Engine operator [42] Exudation valve of air intake [43] Kitchen [44] Kitchen's hatch [45] Keel [46] Hatch [47] Dining room and cabin of non-commissioned officers [48] Bottle of compressed air [49] Aft battery room [50] Radio antennas [51] Insulators [52] External connections of the antenna (rear) [53] Flag pole [54] Safety banister of cannon platform [55] C30 20-millimeter cannon [56] Control wheels for elevation [57] Air intake of Diesel admission system [58] Commander's flag pole [59] Attack periscope [60] Compass [61] Antenna [62] Control room / aerial search periscope [63] External housing of attack periscope [64] Bridge hatch [65] Foam deflector [66] External connections of the antenna (fore) [67] Wave deflector [68] Safety banister [69] Main compass [70] Revolution counter of propeller's shaft [71] Attack calculator [72] Access hatch to conning tower [73] Control wheel of attack periscope [74] Surface tube for air admission to the ship [75] Surface tube for air admission to the Diesel engines [76] Pump of main immersion tank [77] Aft bulkhead [78] Watertight hatch [79] Main control station for all the immersion and trimming tanks [80] Valve of auxiliary controls [81] Main immersion tank [82] Control station of aft hydroplanes [83] Oxygen bottles [84] Control station of fore hydroplanes [85] Helmsman [86] Wheel of aerial search periscope [87] Commander [88] Switches of ignition system [89] Main fore bulkhead [90] Fore watertight hatch [91] Radio room [92] Keel ballast [93] Main fuel tank [94] Powder magazine [95] Wash water tank [96] Sonar listening room [97] Sonar operator [98] C35 88-millimeter deck cannon [99] Ring of deck cannon [100] Watertight container for ready-to-use 88-millimeter ammunition [101] Lockers [102] Bunk beds [103] Fore battery room [104] Pantry [105] Mooring bitts [106] Cargo hatch for fore torpedoes [107] Access door [108] Bottles of compressed air [109] Torpedoes in reserve [110] Access hatch to container of torpedoes in reserve [111] Access hatch to boats [112] Fore watertight container for a torpedo in reserve [113] Control on deck of winch's speed [114] Winch's brake on deck [115] Winch's removable head [116] Sonar [117] Control on deck of winch's transmission speed [118] Winch's transmission brake on deck [119] Winch's gear system [120] Internal control of winch's speed [121] Winch's transmission motor [122] Reduction gearbox [123] Universal joint [124] Transmission shaft [125] Reserve of compressed air for fore torpedo tubes [126] Hydraulic controls for the transmission shaft of hydroplanes [127] Transmission motor of hydroplanes [128] Depth control shaft [129] Hydroplane's tensor [130] Starboard fore hydroplane [131] Hydroplane's protector [132] Hydroplane's control shaft [133] Fore torpedo tubes [134] Fore end of pressure hull [135] Transmission shaft of anchor's winch [136] Anchor's winch [137] Anchor's chain [138] Anchor's housing (only at starboard side) [139] Anchor [140] External doors of starboard torpedo launchers [141] Fore trailer hitch [142] Hull's reinforcement arch

Specifications of Type VIIC U-Boot

Displacement
In surface: 761 tonnes
Submerged: 865 tonnes
Dimensions
Length: 67.1 meters (220 feet 1.73 inches)
Beam: 6.2 meters (20 feet 4.1 inches)
Draught: 4.8 meters (15 feet 9 inches)
Propulsion
Diesel engines: 2 x 1400 horsepower
Electric motors: 2 x 375 horsepower
Maximum speed
In surface: 17 knots (31.5 kilometers/hour)
Submerged: 7.6 knots (14.1 kilometers/hour)
Maximum range
In surface: 6500 nautical miles (12040 kilometers) at 12 knots (22.2 kilometers/hour)
Submerged: 80 nautical miles (148 kilometers) at 4 knots (7.4 kilometers/hour)
Maximum operative depth
150-180 meters (490-590 feet)
Armament
Torpedo tubes at prow: 4
Torpedo tubes astern: 1
Torpedo reloads: 7 inside the pressure hull and 2 outside
1 x 88-millimeter cannon (250 rounds)
1 x 20-millimeter cannon (4380 rounds)
Complement
44 men

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