German Type VII submarine - AbsoluteAstronomy.com

Type VII U-boats were the most common type of German

Nazi Germany

Nazi Germany , also known as the Third Reich , but officially called German Reich from 1933 to 1943 and Greater German Reich from 26 June 1943 onward, is the name commonly used to refer to the state of Germany from 1933 to 1945, when it was a totalitarian dictatorship ruled by...

World War II

World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

U-boat

U-boat is the anglicized version of the German word U-Boot , itself an abbreviation of Unterseeboot , and refers to military submarines operated by Germany, particularly in World War I and World War II...

. The Type VII was based on earlier German submarine designs going back to the World War I

World War I

World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...

Type UB III

German type UB III submarine

The Type UB III submarine was a class of U-boat built during World War I by the Kaiserliche Marine.UB III boats carried 10 torpedoes and were armed with one 88 mm deck gun. They carried a crew of 34 and had a cruising range of around 9,000 miles...

, designed through the Dutch

Netherlands

The Netherlands is a constituent country of the Kingdom of the Netherlands, located mainly in North-West Europe and with several islands in the Caribbean. Mainland Netherlands borders the North Sea to the north and west, Belgium to the south, and Germany to the east, and shares maritime borders...

dummy company Ingenieurskantoor voor Scheepsbouw den Haag (I.v.S) which was set up by Germany after World War I in order to maintain and develop German submarine technology and to circumvent the limitations set by the Treaty of Versailles

Treaty of Versailles

The Treaty of Versailles was one of the peace treaties at the end of World War I. It ended the state of war between Germany and the Allied Powers. It was signed on 28 June 1919, exactly five years after the assassination of Archduke Franz Ferdinand. The other Central Powers on the German side of...

and built by shipyards around the world. The Finnish Vetehinen class and Spanish Type E-1 also provided some of the basis for the Type VII design. These designs led to the Type VII along with Type I

German Type I submarine

The Type I U-boat was the first post-World War I attempt by the German Kriegsmarine to produce an ocean going submarine. Only two Type IAs were built, but the decision to halt production on further boats is believed to be because of political decisions and not because of major faults in the Type I...

, the latter being built in AG Weser

AG Weser

Aktien-Gesellschaft Weser was one of the great German shipbuilding companies, located at the Weser River in Bremen. Founded in 1873 it was finally closed in 1983. Altogether, AG Weser built about 1400 ships of different types, including many war ships...

shipyard in Bremen

Bremen

The City Municipality of Bremen is a Hanseatic city in northwestern Germany. A commercial and industrial city with a major port on the river Weser, Bremen is part of the Bremen-Oldenburg metropolitan area . Bremen is the second most populous city in North Germany and tenth in Germany.Bremen is...

, Germany. The production of Type I was cut down only after two boats; the reasons for this are not certain and range from political decisions to faults of the type. The design of the Type I was further used in the development of the Type VII and Type IX

German Type IX submarine

The Type IX U-boat was designed by Germany in 1935 and 1936 as a large ocean-going submarine for sustained operations far from the home support facilities. Type IX boats were briefly used for patrols off the eastern United States in an attempt to disrupt the stream of troops and supplies bound for...

. Type VII submarines were the most widely used U-boats of the war and were the most produced submarine class in history, with 709 built. The type had several modifications.

Type VIIA

Type VIIA U-boats were designed in 1933-34 as the first series of a new generation of attack U-boats. Most Type VIIA U-boats were constructed at Deschimag AG Weser in Bremen

Bremen

with the exception of U-33 through U-36, which were built at Germaniawerft, Kiel

Kiel

Kiel is the capital and most populous city in the northern German state of Schleswig-Holstein, with a population of 238,049 .Kiel is approximately north of Hamburg. Due to its geographic location in the north of Germany, the southeast of the Jutland peninsula, and the southwestern shore of the...

. Type VIIA U-boats were generally popular with their crews and much more powerful than the smaller Type II U-boats they replaced, with four bow and one external stern torpedo tubes. Usually carrying 11 torpedoes on board, they were very agile on the surface and mounted the 88 mm fast-firing deck gun with about 220 rounds.

Ten Type VIIA boats were built between 1935 and 1937. All but two Type VIIA U-boats were sunk during World War II ( and , both scuttled in Kupfermühlen Bay on 4 May 1945).

The boat was powered on the surface by two MAN AG, 6 cylinder, 4-stroke M6V 40/46 diesels giving a total of 2100 bhp at 470 to 485 rpm. When submerged it was propelled by two BBC GG UB 720/8 electric motors giving a total of 750 hp at 322 rpm.

List of Type VIIA submarines

Type VIIA submarines
Name of U-boat	Ships sunk or damaged	Fate
U-27	2	Sunk September 1939
U-28	15	sunk in training accident 1944
U-29 German submarine U-29 (1936) German submarine U-29 was a Type VIIA U-boat of the German Kriegsmarine during World War II.She was laid down on 2 January 1936 and commissioned on 10 November 1936. During her career U-29 was involved in seven war patrols under the command of Kapitänleutnant Otto Schuhart...	13	scuttled 1945
U-30	19
U-31	14
U-32	25
U-33	11
U-34	24
U-35	5
U-36	3

Type VIIB

The VIIA had limited fuel capacity, so 24 Type VIIB boats were built between 1936 and 1940 with an additional 33 tons of fuel in external saddle tanks which added another 2500 miles (4625 km) of range at 10 knots (19 km/h) surfaced. They were slightly faster than the VIIA, and had two rudders for greater agility. The torpedo armament was improved by moving the aft tube to the inside of the boat. Now an additional aft torpedo could be carried below the deck plating of the aft torpedo room (which also served as the electric motor room) and two watertight compartments under the upper deck could hold two additional torpedoes giving it a total of 14 torpedoes. The only exception was , which lacked a stern tube and carried only 12 torpedoes.

Type VIIBs included many of the most famous U-boats of World War II

World War II

, including (the most successful), Prien

Günther Prien

Lieutenant Commander Günther Prien was one of the outstanding German U-boat aces of the first part of the Second World War, and the first U-boat commander to win the Knight's Cross of the Iron Cross. Under Prien's command, the submarine sank over 30 Allied ships totaling about...

's , Kretschmer

Otto Kretschmer

Flotilla Admiral Otto Kretschmer was a German U-boat commander in the Second World War and later an admiral in the Bundesmarine. From September 1939 until being captured in March 1941, he sank 47 ships, a total of 274,333 tons. For this he received the Knight's Cross of the Iron Cross with Oak...

's , and Schepke

Joachim Schepke

Lieutenant-Commander Joachim Schepke was a German U-boat commander during World War II. He was the seventh recipient of the Knight's Cross of the Iron Cross with Oak Leaves . The Knight's Cross of the Iron Cross and its higher grade Oak Leaves was awarded by the Third Reich to recognise extreme...

's .

On the surface the boat was powered by two supercharged MAN, 6 cylinder, 4-stroke M6V 40/46 diesels (except for U-45 to U-50, U-83, U-85, U-87, U-99, U-100, and U-102 which were powered by two supercharged Germaniawerft 6-cylinder, 4-stroke F46 diesels) giving a total of 2,800 to 3,200 bhp (2,400 kW) at 470 to 490 rpm. When submerged, the boat was powered by two AEG GU 460/8-276 (except in U-45, U-46, U-49, U-51, U-52, U-54, U-73 to U-76, U-99 and U-100 which retained the BBC motor of the VIIA) electric motors giving a total of 750 shp (560 kW) at 295 rpm.

List of Type VIIB submarines

Type VIIB submarines
Date launched	Name of U-boat	Date commissioned	Ships sunk or damaged
	U-45 German submarine U-45 (1938) German submarine U-45 was a Type VIIB U-boat of the German Kriegsmarine during World War II. She was ordered by the Kriegsmarine on November 21, 1936 and laid down February 23, 1937 at F. Krupp Germaniawerft AG in Kiel as werk 580. She was launched on April 27, 1938 and comissioned on June 25, 1938...		2
	U-46		27
	U-47		39
	U-48		55
	U-49		1
	U-50		4
	U-51		6
	U-52 German submarine U-52 (1939) \|German submarine U-52 was a Type VIIB U-boat of the German Kriegsmarine during World War II. She was initially ordered on 15 May 1937 in violation of the terms of the Treaty of Versailles, and laid down on 9 March 1938 at the yards of F. Krupp Germaniawerft AG in Kiel as werk 587...		13
	U-53 German submarine U-53 (1939) German submarine U-53 was a Type VIIB U-boat of the German Kriegsmarine during World War II. She was laid down on 13 March 1937 at Krupp Germaniawerft in Kiel and went into service on 24 June 1939 under the command of Dietrich Knorr....		8
	U-54		0
	U-55 German submarine U-55 (1939) German submarine U-55 was a Type VIIB U-boat of the German Kriegsmarine during World War II. She was ordered 16 July 1937 and laid down on 2 November 1938 at Krupp Germaniawerft in Kiel...		6
	U-73		15
	U-74		7
	U-75		9
	U-76 German submarine U-76 (1940) German submarine U-76 was a Type VIIB U-boat of the German Kriegsmarine during World War II. U-76 played a minor role in the Battle of the Atlantic, but was destroyed somewhere south of Iceland.-1st patrol:...		2
	U-83		8
	U-84 German submarine U-84 (1941) German submarine U-84 was a Type VIIB U-boat of the German Kriegsmarine during World War II.U-84 was launched on 26 February 1941 and commissioned on 29 April 1941...		7
	U-85		3
	U-86		4
	U-87 German submarine U-87 (1941) German submarine U-87 was a Type VIIB U-boat of the German Kriegsmarine during World War II. The submarine was laid down on 9 June 1938 at the Flender Werke yard at Lübeck; launched on 21 June 1941, and commissioned on 21 June 1941 under the command of Kapitänleutnant Joachim Berger...		5
	U-99		44
	U-100		30
	U-101		25
	U-102		2

Type VIIC

The Type VIIC was the workhorse of the German U-boat force, with 568 commissioned from 1940 to 1945. The first VIIC boat commissioned was the in 1940. The Type VIIC was an effective fighting machine and was seen almost everywhere U-boats operated, although its range of only 6,500 nautical miles was not as great as that of the larger Type IX(11,000 nautical miles), severely limiting the time it could spend in the far reaches of the western and southern Atlantic without refueling from a tender or U-boat tanker. The VIIC came into service toward the end of the first "Happy Time"U-boat ace Otto Kretchmer took issue with use of the term "Happy Time." He didn't see how the U-boat war could ever be characterized as having a "Happy Time" when losses of U-boats and crews were running at 50%. (See interview on YouTube.) near the beginning of the war and was still the most numerous type in service when Allied anti-submarine efforts finally defeated the u-boat campaign in late 1943 and 1944.

Type VIIC differed from the VIIB only in the addition of an active sonar and a few minor mechanical improvements, making it 2 feet longer and 8 tons heavier. Speed and range were essentially the same. Many of these boats were fitted with snorkels

Submarine snorkel

A submarine snorkel is a device which allows a submarine to operate submerged while still taking in air from above the surface. Navy personnel often refer to it as the snort.-History:...

in 1944 and 1945.

They had the same torpedo tube arrangement as their predecessors, except for , , , , and , which had only two bow tubes, and for , , , , , and , which had no stern tube.

On the surface the boats (except for , and to which used MAN M6V40/46s) were propelled by two supercharged Germaniawerft, 6 cylinder, 4-stroke M6V 40/46 diesels totaling 2800 hp at 470 to 490 rpm.

For submerged propulsion, several different electric motors were used. Early models used the VIIB configuration of two AEG GU 460/8-276 electric motors, totaling 750 hp with a max rpm of 296, while newer boats used two BBC (Brown Boveri & Co)

Brown, Boveri & Cie

Brown, Boveri & Cie was a Swiss group of electrical engineering companies.It was founded in Baden, Switzerland, in 1891 by Charles Eugene Lancelot Brown and Walter Boveri who worked at the Maschinenfabrik Oerlikon. In 1970 BBC took over the Maschinenfabrik Oerlikon...

GG UB 720/8, two GL (Garbe Lahmeyer) RP 137/c electric motors or two SSW (Siemens-Schuckert-Werke)

Siemens-Schuckert

Siemens-Schuckert was a German electrical engineering company headquartered in Berlin, Erlangen and Nuremberg that was incorporated into the Siemens AG in 1966....

GU 343/38-8 electric motors with the same power output as the AEG motors.

Perhaps the most famous VIIC boat was , featured in the movie Das Boot
Das Boot
Das Boot is a 1981 German epic war film written and directed by Wolfgang Petersen, produced by Günter Rohrbach, and starring Jürgen Prochnow, Herbert Grönemeyer, and Klaus Wennemann...

.

U-flak "Flak Traps"

The concept of the "U-flak" or "Flak Trap" originated the previous year, on 31 August 1942, when was seriously damaged by aircraft. Rather than scrap the boat, it was decided to refit her as a heavily-armed anti-aircraft boat intended to combat the losses being inflicted by Allied aircraft in the Bay of Biscay

Bay of Biscay

The Bay of Biscay is a gulf of the northeast Atlantic Ocean located south of the Celtic Sea. It lies along the western coast of France from Brest south to the Spanish border, and the northern coast of Spain west to Cape Ortegal, and is named in English after the province of Biscay, in the Spanish...

. Two 20 mm quadruple Flakvierling mounts and an experimental 37 mm automatic gun were installed on the U-flaks' decks. A battery of 86 mm line-carrying anti-aircraft rockets was tested (similar to a device used by the British in the defense of airfields), but this idea proved unworkable. At times, two additional single 20 mm guns were also mounted. The submarines' limited fuel capacities restricted them to operations only within the Bay of Biscay. Only five torpedoes were carried, preloaded in the tubes, to free up space needed for additional gun crew.

Four VIIC boats were modified for use as surface escorts for U-boats departing and returning to French Atlantic bases. These "U-flak" boats were , , , and . Conversion began on three others but none was completed and they were eventually returned to duty as standard VIIC attack boats.

The modified boats became operational in June 1943 and at first appeared to be successful against a surprised Royal Air Force

Royal Air Force

The Royal Air Force is the aerial warfare service branch of the British Armed Forces. Formed on 1 April 1918, it is the oldest independent air force in the world...

. Hoping that the extra firepower might allow the boats to survive relentless British air attacks in the Bay of Biscay and reach their operational areas, Donitz ordered the boats to cross the bay in groups at maximum speed. The effort earned the Germans about two more months of relatively limited freedom, until the RAF modified their tactics. When a pilot saw that a U-boat was going to fight on the surface, he held off attacking and called in reinforcements. When several aircraft had arrived, they all attacked at once. If the U-boat dived, surface vessels were called to the scene to scour the area with sonar and drop depth charges. The British also began equipping some aircraft with rockets that could sink a U-boat with a single hit

RP-3

The RP-3 , was a British rocket used in the Second World War. Though primarily an air-to-ground weapon, it saw limited use in other roles. Its 60 lb warhead gave rise to the alternative name of the "60 lb rocket"; the 25 lb solid-shot armour piercing variant was referred to as the "25 lb rocket"...

, finally making it too dangerous for a U-boat to attempt to fight it out on the surface regardless of its armament. In November 1943, less than six months after the experiment began, it was discontinued. All U-flaks were converted back to standard attack boats and fitted with Turm 4, the standard anti-aircraft armament for U-boats at the time. (According to German sources, only six aircraft had been shot down by the U-flaks in six missions, three by U-441, and one each by U-256, U-621, and .)

Type VIIC/41

Type VIIC/41 was a slightly modified version of the VIIC and had the same armament and engines. The difference was a stronger pressure hull giving them a deeper test depth and lighter machinery to compensate for the added steel in the hull, making them slightly lighter than the VIIC. A total of 91 were built; all of them from onwards lacked the fittings to handle mines.

Today one Type VIIC/41 still exists: is on display at Laboe

Laboe Naval Memorial

The Laboe Naval Memorial is a memorial located in Laboe, near Kiel, in Schleswig-Holstein, Germany. Started in 1927 and completed in 1936, the monument originally memorialized the World War I war dead of the Kaiserliche Marine, with the Kriegsmarine dead of World War II being added after 1945...

(north of Kiel

Kiel

), the only surviving Type VII in the world.

List of Type VIIC/41 submarines

There were 91 Type VIIC/41 submarines commissioned.

Type VIIC/42

The Type VIIC/42 was designed in 1942 and 1943 to replace the aging Type VIIC. It would have had a much stronger pressure hull, with skin thickness up to 28 mm, and would have dived twice as deep as the previous VIICs. These boats would have been very similar in external appearance to the VIIC/41 but with two periscopes in the tower and would have carried two more torpedoes.

Contracts were signed for 164 boats and a few boats were laid down, but all were cancelled on 30 September 1943 in favor of the new Type XXI, and none was advanced enough in construction to be launched.

It was powered by the same engines as the VIIC.

Type VIID

The type VIID boats, designed in 1939 and 1940, were a lengthened - by 10 metre - version of the VIIC for use as a minelayer. The mines were carried in, and released from, three banks of five vertical tubes just aft of the conning tower

Conning tower

A conning tower is a raised platform on a ship or submarine, often armored, from which an officer can con the vessel; i.e., give directions to the helmsman. It is usually located as high on the ship as practical, to give the conning team good visibility....

. The extended hull also improved fuel and food storage.

On the surface the boat used two supercharged Germaniawerft, 6 cylinder, 4-stroke F46 diesels delivering 3,200 bhp (2,400 kW) at between 470 to 490 rpm. When submerged the boat used two AEG GU 460/8-276 electric motors giving a total of 750 shp (560 kW) at 285 rpm.

Only one (U-218) managed to survive the war; the other five were sunk, killing all crew members.

List of Type VIID submarines

Type VIID submarines
Date launched	Name of U-boat	Date commissioned	Ships sunk or damaged
	U-213 German submarine U-213 German submarine U-213 was a Type VIID mine-laying U-boat of the German Kriegsmarine during World War II.-Training:Laid down on 1 October 1940 by Friedrich Krupp Germaniawerft, Kiel, the boat was commissioned on 30 August 1941 with Oberleutnant zur See Amelung von Varendorff in command...		0
	U-214		6
	U-215		1
	U-216 German submarine U-216 German submarine U-216 was a Type VIID mine-laying U-boat of the German Kriegsmarine during World War II.U-216 was one of six U-boats of its kind, equipped with special vertical tubes that launched mines. Her keel was laid down 1 January 1941 by Germaniawerft in Kiel...		1
	U-217		3
	U-218		5

Type VIIF

The Type VIIF boats were designed in 1941 as supply boats to rearm U-boats at sea once they had used up their torpeodes

Torpedo

The modern torpedo is a self-propelled missile weapon with an explosive warhead, launched above or below the water surface, propelled underwater towards a target, and designed to detonate either on contact with it or in proximity to it.The term torpedo was originally employed for...

. This required a lengthened hull and they were the largest and heaviest type VII boats built. They were armed identically with the other Type VIIs except that they could have up to 39 torpedoes onboard and had no deck guns.

Only four Type VIIFs were built. Two of them, and , were sent to support the Monsun Gruppe

Monsun Gruppe

The Monsun Gruppe or Monsoon Group was a force of German U-boats that operated in the Pacific and Indian Oceans during World War II...

in the Far East; and remained in the Atlantic. Type VIIF U-boats used the same engines as the Type VIID class.
Three were sunk during the war, the last was scuttled after the war along with the majority of the surrendered U boats

Operation Deadlight

Operation Deadlight was the code name for the scuttling of U-boats surrendered to the Allies after the defeat of Germany near the end of World War II....

**List of Type VIIF submarines**
Name of U-boat	Date launched	Date commissioned	Notes
U-1059			sunk by Allied aircraft on second supply patrol in support of Far East operations
U-1060			completed 6 supply patrols before wrecked by Allied aircraft in October 1944
U-1061			completed five supply patrols and was surrended at end of war
U-1062			sunk by US escorts on return from first supply patrol to Far East

Specifications

Class	VIIA	VIIB	VIIC	VIIC/41	VIIC/42	VIID	VIIF
Displacement surfaced	626 tons	753 tons	769 tons	769 tons	999 tons	965 tons	1084 tons
Displacement submerged	745 tons	857 tons	871 tons	871 tons	1099 tons	1080 tons	1181 tons
Length overall	64.5 m	66.6 m	67.1 m	67.23 m	68.7 m	76.9 m	77.6 m
Length pressure hull	44.5 m	48.8 m	50.5 m	50.5 m	50.9 m	59.8 m	60.4 m
Beam overall	5.85 m	6.2 m	6.2 m	6.2 m	6.85 m	6.4 m	7.3 m
Beam pressure hull	4.7 m	4.7 m	4.7 m	4.7 m	5 m	4.7 m	4.7 m
Draft	4.4 m	4.74 m	4.74 m	4.74 m	5 m	5 m	4.9 m
Power surfaced	1,700 kW2 MAN, 6 cylinder, 4-stroke M6V 40/46 diesels totalling 2,100 - 2,310bhp. Max rpm: 470-485.	2,400 kW2 supercharged MAN, 6 cylinder, 4-stroke M6V 40/46 diesels totalling 2,800 - 3,200bhp. Max rpm: 470-490.	2,400 kW2 supercharged Germaniawerft, 6 cylinder, 4-stroke M6V 40/46 diesels totalling 2,800 - 3,200bhp. Max rpm: 470-490.	2,400 kWSame as VIIC	2,400 kWSame as VIIC	2,400 kW2 supercharged Germaniawerft, 6 cylinder, 4-stroke F46 diesels totalling 2,800 - 3,200bhp. Max rpm: 470-490.	2,400 kWSame as VIID.
Power submerged	560 kW2 Brown, Boveri & Cie Brown, Boveri & Cie Brown, Boveri & Cie was a Swiss group of electrical engineering companies.It was founded in Baden, Switzerland, in 1891 by Charles Eugene Lancelot Brown and Walter Boveri who worked at the Maschinenfabrik Oerlikon. In 1970 BBC took over the Maschinenfabrik Oerlikon... GG UB 720/8 electric motors, totalling 750shp. Max rpm: 322.	560 kW2 AEG AEG Allgemeine Elektricitäts-Gesellschaft was a German producer of electrical equipment founded in 1883 by Emil Rathenau.... GU 460/8-276 electric motors, totalling 750shp. Max rpm: 295.	560 kWSame as VIIA or VIIB, 2 Siemens-Schuckert Werke Siemens-Schuckert Siemens-Schuckert was a German electrical engineering company headquartered in Berlin, Erlangen and Nuremberg that was incorporated into the Siemens AG in 1966.... GU 343/38-8 electric motors, totalling 750shp and max rpm: 296 or 2 Garbe Lahmeyer RP 137/c electric motors, totalling 750shp and max rpm: 296.	560 kWSame as VIIC	560 kWSame as VIIC	560 kW2 AEG GU 460/8-276 electric motors, totalling 750shp. Max rpm: 285	560 kWSame as VIID
Surface speed	17 knots (33.3 km/h)	17.9 knots (35.1 km/h)	17.7 knots (34.7 km/h)	17.7 knots (34.7 km/h)	18.6 knots (36.5 km/h)	16.7 knots (32.7 km/h)	17.6 knots (34.5 km/h)
Submerged speed	8 knots (15.7 km/h)	8 knots (15.7 km/h)	7.6 knots (14.9 km/h)	7.6 knots (14.9 km/h)	7.3 knots (14.3 km/h)	7.9 knots (15.5 km/h)	7.6 knots (14.9 km/h)
Surface range	11470 km (6,193.3 nmi)	16095 km (8,690.6 nmi)	15170 km (8,191.1 nmi)	15725 km (8,490.8 nmi)	23310 km (12,586.4 nmi)	20720 km (11,187.9 nmi)	27195 km (14,684.1 nmi)
Submerged range	175 km (94.5 nmi)	175 km (94.5 nmi)	150 km (81 nmi)	150 km (81 nmi)	150 km (81 nmi)	130 km (70.2 nmi)	140 km (75.6 nmi)
Maximum operating depth	220 m	220 m	230 m	250 m	270 m	200 m	200 m
Crush depth	230–250 m	230–250 m	250–295 m	275–325 m	350–400 m	220–240 m	220–240 m
Complement	42–46	44–48	44–52	44–52	44–52	46–52	46–52
Deck gun	C35 88 mm/L45, with 220 rounds						none
Anti-aircraft guns	C30 20 mm 2 cm FlaK 30 The Flak 30 and improved Flak 38 were 20 mm anti-aircraft guns used by various German forces throughout the Second World War. It was not only the primary German light anti-aircraft gun, but by far the most numerously produced German artillery piece throughout the war...		Various			2 × C30 20 mm, with 4,380 rounds	3.7 cm Flak, with 1,195 rounds 2 × C30 20 mm, with 4,380 rounds
Bow tubes	4 A small number of VIIC boats were fitted with only two forward tubes
Stern tubes	1 A small number of VIIC boats were fitted with no stern tube
Torpedoes (maximum)	11	14	14	14	16	14	14 / 39 39 Torpedoes were carried in the transport role
Mines	22 TMA mines or 33 TMB mines	26 TMA mines				15 SMA mines in vertical chutes and either 26 TMA mines or 39 TMB mines	none
Number commissioned	10	24	568	91	0 None of the boats were ready by the end of the war	6	4

External links

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