Technical_details

The technical details of the U-Boats

Combat-U-Boats		Midget-U-Boats
Designation	Type	Designation	Type
U 1 U 9 / U 10 U 461 U 995 Vesikko U 434 H.M.S. Otus	--- 205 mod Project 641 / Juliett class VII C/41 Typ IIa Project 614b / Tango class Oberon class	Brandtaucher Hecht Molch Biber Seehund Neger	--- XXVII --- --- XXVII B, later 127 ---

Combat-U-Boats

U 1
Design and building	Fried. Krupp Germaniawerft Aktiengesellschaft, Kiel-Gaarden
In service	14.12.1906	Design	two-hull submarine
Water deplacement	238 t surfaced 283 t dived	Drive engines	2 six cylinder-two-stroke- petroleum engines ever 200 HP 2 electic motors (double communtator motors) ever 200 HP
Diving depth	30 m, with 2,5-fold security
Immersion time	approx. 300 s
Length	42,39 m	Accumulators	Dry accumulators
Width	3,75 m	Propulsion	2 rotary wing screws of 1,3 m diameters
Depth	3,17 m	Propulsion	2 rotary wing screws of 1,3 m diameters
Fuel oil shelter	22 t	Armament	45 cm-bow torpedo tube 3 torpedos: 1x in the pipe, 2x in the magazine
Max. speed	10,8 kn surfaced 8,7 kn dived	Armament
Operation range	1400 sm surfaced 50 sm dived	Retractable instruments	3x periscope with 1x und 1,25x enlargement 2x hinged air tubes for the supply of the interior with fresh air during the time surfaced
Rescue mechanismus	Droppable safety weights at the ballast keel Marker with telephone link From the outside accessible pressing pneumatic manifold	Retractable instruments


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U 9 / U 10
Type	205 mod, single-hull submarine	Drive engines and propulsion	Drive engine, clutch, wave screw: 5-blade
In service	1967
Water deplacement	450 t surfaced 500 t dived	Hull: 5 areas	1. Section: Drive motor 2. Section: Diesel engine 3. Section: Contorl room 4. Section: Bow room 5. Section: Torpedo tubes
Diving depth	100 m
Length	45,73 m
Height	9,20 m	Drive engine	Double anchor 1500 HP / 270 U/h
Width	4,6 m	Diesel engine	2x 600 HP
Depth	4,02 m	Generator	2x 405 KW
Length “Pressure hull”	29,87 m	Accumulators	Double cells, 3 section batteries Capacity approx. 5.300 ah
Diameter “Pressure hull”	4,55 m
		Armament	8 bow-torpedo-tubes also for mines (RI + II)
Max. speed	17 kn dived 10 kn surfaced
		Retractable instruments	1 Periscope 1 Blade antenna 1 Radar mast 1 Snorkel 1 ECM (radar coverage)
Operating range dived	with 80% discharged (6 kn) 210 sm
Max. Operating range	5 kn: 4177 sm, 11 kn: 1300 sm
Air renewal	Oxygen cylinders, breath lime	Rescue mechanism	Lifeaft, escape gear, ANA-System


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U 995
Type	VII C/41	Fuel supply	113 t
Year of construction	1943	Operating range cruise speed	(10 kn) 7900 sm
Water displacement:	871 t dived, 769 t surfaced	Total operating range with diesel-motor and e-maschine	(7 kn) 10000 sm (12 kn) 6100 sm
Diving depth	120 m	Diesel engine	2 MAN 6-cylinder-four-stroke ever 1400 HP at 470 rpm
Length	67,23 m	Diesel engine	2 MAN 6-cylinder-four-stroke ever 1400 HP at 470 rpm
Height	9,55 m	Electic motors	2 BBC double anchor ever 375 HP at 295 rpm
Width	6,20 m	Electic motors	2 BBC double anchor ever 375 HP at 295 rpm
Depth	4,76 m	Accumulators	2 section batteries with 62 double cells, capacity 9160 Ah
Diameter “Pressure hull”	4,70 m	Armament (last status)	4 Bow- and 1 Sterntorpedo tubes: 53,3 cm Diameter 12 torpedos or mines 2x 2-cm-double guns on upper “winter garden” 3,7 cm anti-aircraft gun on lower “winter garden”
Max. speed	7,6 kn dived 17 kn surfaced
Operating range dived	(4 kn) 80 sm (2 kn) 130 sm


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U 461
Type	Juliett-class (project 651)	Operating range	16000 sm surfaced (8 k) 9000 sm surfaced (2,8 kn) 810 sm dived
Shipyard	Krasnoye Sormovo, Gorkij
In service	1965
Out of service	1991	Diesel engine	2x 4000 HP, 1x 1720 HP
Water displacement:	3174 t surfaced, 4137 t dived	Electic motors	2x 6000 HP, 2x 200 HP for creeping drive
In service	31.10.1965	Propulsion	Diesel-electric with two shafts
Length	85,9 m	Accumulators	Silver-zinc-batteries
Height	10 m	Accumulators	Silver-zinc-batteries
Width	9,7 m	Armament	6 bow torpedo tubes 53,3 cm for torpedos against ships 4 Sterntorpedo tubes 40 cm for anti-submarine torpedos 4 SS-N3A “Shaddock” rockets (P-6) or P-5 with nuclear or conventional warhead
Depth	6,9 m
Test depth	300 m
Destruction depth	600 m
Max.diving-time	800 h
See preserve	90 days
Max. speed	15,9 kn surfaced, 18 kn dived	Sonar	Passive one in the bow Active one above the bow


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VESIKKO
Typ	Prototype, later II A	Operating range dived	(2 kn) 122 sm (5 kn) 50 sm
Year of construction	1933	Operating range dived	(2 kn) 122 sm (5 kn) 50 sm
Water displacement:	300 t dived, 250 t surfaced	Total operating range	(8 kn) 1960 sm (13 kn) 1500 sm
Diving depth	90 m	Diesel engine	2 MWM RS127S (Mannheimer motors Factory), ever 350 HP
Length	40,9 m	Fuel supply	9,6 t
Width	3,9 m	Electric motors	2 Siemens motors, even 180 HP
Depth	4,1 m	Accumulators	62 cells with 6350 Ah
Max. speed	7 kn dived 13 kn surfaced	Armament (last status)	3 Bow torpedo tubes, 6 torpedos, 1x 20mm Madson


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U 434
Typ	Project 641 b, “SOM”	Lubrication oil supply	48 t
NATO-Code	Tango-class	Max. speed	13 kn surfaced 15 kn dived
Shipyard	Krasnoje Sormowo Gorki	Max. speed	13 kn surfaced 15 kn dived
Out of service	April 2002	Operating range	810 sm dived
Water displacement:	2800 t surfaced 3630 t dived	Diesel engine	3x Typ D-42, 5250 HP together
In service	1976	Electric motors	3x Typ PG-102, 5400 HP together 1x E-motor with 140 HP for “silent drive” on the middle shaft
Length	90,16 m	Propulsion	Diesel-electric with three shafts 4 E-motors
Height	14,72 m	Propulsion	Diesel-electric with three shafts 4 E-motors
Width	8,72 m	Sensors	2 radar, 2 sonar
Depth	6,60 m	Armament	6 bow-torpedo-tubes 53,3 cm 18 submarine-attack-torpedos and Ship-torpedos or 36 mines 2 SS-N-15 submarine-attack- rockets / Ship-rockets
Depth of destruction	600 m
Working depth	400 m (=test-diving-depth)
Fuel oil shelter together	670 t


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H.M.S. OTUS
Country	Great Britain	Penanntnumber	S 18
Typ	Oberon class	Length	90,7 m
Typ of use	Angriffsuboot, SSK	Width	8,10 m
Shipyard	Scotts, Greenock, GB	Draught	4,50 m
Auf Kiel gelegt	31. Mai 1961	Tauchtiefe	bis 300 m, Testtiefe bei 150 m
Launch	17. Oktober 1962	Operating range	9000 sm bei 12 kn
In Service	05. Oktober 1963
Water displacement	2030 t submerged 2400 t dived
Speed	12 kn submerged 17,5 kn dived	Armament	6x 21” bow-torpedotubes 2x 21” stern-torpeotubes 24 MK-24 Tigerfish torpedos
Driving engines	submerged: 2 Admiralitaet 16VVS (16 Ventil) ASR1 Dieselengines with 3680 HP dived: 2 electric motors with 6000 HP each	Sonar	Typ 187 Stern-sonar Typ 2007 passive flanksonar Typ 2019 passive/active sonar, Abfang sonar nachgerüstet

Midget-U-Boats

BRANDTAUCHER
Werft	Maschinenfabrik und Eisengießerei Schwefel & Howaldt
Year of construction	1850	Drive engine	two by hand claimant pedals
Length	8 m
Width	2 m	Armament	Powder barrel; Ignition by means of a galvanic wire.
Height	3,5 m


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HECHT
Typ	XXVII	Total operating range	4 kn: 38 sm with mine head 4 kn: 69 sm with batterie head
Year of construction	ab 1944
Length	10,39 m	Drive engine	AEG AV 76 electric motors 12 HP with 1300 rpm
Width	1,70 m
Water displacement	11,83 t	Armament	1 external torpedos G7e 53,3 cm under the keel 1 Mine
Diving depth	50 m
Speed	5,7 kn surfaced 6,0 kn dived


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MOLCH
Typ	Molch	Total operating range	4 kn: 50 sm surfaced 5 kn: 50 sm dived
Year of construction	starting from 1944
Length	10,78 m	Drive engine	SSW GL 234/7,5 electric motors 13 HP with 551 rpm surfaced 13,9 HP with 596 rpm dived
Width	1,82 m
Water displacement	11,01 t
Diving depth	40 m	Armament	2 external torpedos G7e 53,3 cm laterally under the keel
Speed	4,3 kn surfaced 5,0 kn dived


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BIBER
Year of construction	starting from 1944	Water displacement	6,3 t
Length	8,0 m	Drive engine	32 HP Opel-Blitz petrol engine or 13 HP electric motor
Width	0,89 m	Speed	6,5 kn surfaced 5,3 kn dived
Depth	1,1 m	Armament	2 external torpedos 53,3 cm
Fuel	0,11 t	Diving depth	15 m


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SEEHUND
Typ	XXVII B, later 127	Diving depth	30 m with 2,5-folder security
Year of construction	ab 1944	Diving depth	30 m with 2,5-folder security
Length	11,87 m	Drive engine	60 HP LKW-Diesel engine 25 HP electric-motor
Width inclusive torpedos	1,68 m	Armament	2 external torpedos 53,3 cm laterally beside the keel
Depth	1,74 m	Total operating range dived	7 kn: 300 sm with diesel 3 kn: 63 sm with e-motor
Speed	7,7 kn surfaced 6,0 kn dived	Building method	Single-hull submarine Transverse frame steel structure
Water displacement	14,9 t with 2 torpedos 12,3 t without torpedos	Fuel oil supply	0,46 t


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NEGER
Year of construction	starting from 1943	Diving depth	no diving possible
Length	7,6 m	Drive engine	12 HP electric motor
Width	0,5 m	Armament	1 torpedo 53,3 cm
Speed	4 (6) kn	Operating range	48 sm with 4 kn
Water displacement	2,7 t


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