German U-Boat



U-995 Type VIIC Gallery DVD

Military Online Colleges


Mailing List
Signup for our free
newsletter
to
receive news on
U-Boat updates.

Email:
Home » U-Boat Types » Type IX

Type IX U-Boat

Type IX U-boat

The Type IX was designed with two objectives in mind to be the long range counterpart to the medium-range Type VII, and to serve as a tactical command boat for the leader of a wolf pack. After the fall of France, the second requirement became unnecessary as the powerful land based transmitters on the French coast meant that tactical command could be handled from shore.



U-995 German Type VIIC U-Boat Illustrated Gallery
Explore the last surviving German Type VIIC U-boat with over 600 Walkaround photos, videos, schematic plans, authentic sounds and a virtual tour. For modelers, researchers, and u-boat fans. Click here now.

Authored by Uboataces
U-995 U-boat

The Type IXs were excellent sea boats, which had sufficient range to operate in distant waters in the South Atlantic, Indian and even the Pacific oceans - although some had even reached the east coast of North America. It was designed to travel fast to and from distant operational zones, while carrying an adequate supply of torpedoes and stores for sustained solo patrols. It carried more torpedoes than the Type VII but was handicapped with a slow diving time and was more vulnerable to attack mainly due to its comparatively large size.

Type IXD2 under attack
A Type IXD2 under attack from US aircraft. The two flakvierling appears to be pointed in different directions, indicating it is under attack by more than one aircraft.

This model was much bigger, longer and employed more powerful diesel engines. It used a supercharged 9-cylinder diesel instead of the standard 8-cylinder on the Type VIIs. To balance the much heavier weight, the engine room was located immediately rear of the control room. The Type IX had a full double hull, with the outer hull almost completely surrounding the pressure hull. The upper deck was wide and flat, which provided additional space to store ten torpedoes externally in watertight containers. When the war started, the standard gunnery of the Type IX was one 105mm deck gun, one 37mm flak and one C30 machine gun. It had four forward torpedo tubes and two backward tubes, with a total capacity of 22 torpedoes.

Together with the Type VII, the Type IX combined to form the backbone of the U-boat force, which had fought relentlessly for control of the shipping lanes of the Atlantic. More than 200 Type IXs were built in seven sub-classes.

Type IXA

Type IXA

The first of the original design, a total of eight Type IXAs were built. The first was U-37, launched on May 4 1938, and commissioned on August 4 1938. It was equipped with three periscopes, two in the conning tower and one in the control room.

Type IXB

Type IXB

Fourteen Type IXBs were built. The fuel capacity was increased from 154 tons to 165 tons, giving a slightly extended range from 8,100nm to 8,700nm.

Type IXC

Type IXC

Fifty four Type IXCs were built. The main difference was an increased fuel capacity to 208 tons, resulting in an extended range from 8,700nm to 11,000nm. This subclass onward had two periscopes, both housed within the conning tower.

Type IXC/40

Eighty seven Type IXC/40s were built. The fuel capacity was yet further increased to 214 tons, giving an extended range to 11,400nm.

Type IXD

A highly desirable trait was for a U-boat which could combine high speed with very long range. However given the technology of the day, it was recognized that to develop such a boat would cause excessive complications. Instead, it was decided to develop two versions, one which maximized speed, and the other very long range. This led to the design of the Type IXD1 (speed) and IXD2 (range).

Type IXD1

Only two Type IXD1s were built, U-180 and U-195. Their standard diesel engines were substituted with six Daimler Benz MB501 diesels, producing an output of 1,500hp each. Though the maximum range was somewhat reduced, this design could achieve a respectable top speed in excess of 20 knots. Considerable technical problems were encountered, including overheating and the emission of white exhaust smoke which was visible for miles. The unsatisfactory engines were removed and the original MAN engines were reinstalled. They were later converted to transport U-boats and could to carry up to 252 tons of cargo. In this configuration, the torpedo tubes were removed to provide additional cargo room. Both variants of the Type IXD1s were equipped with a Focke Achgelis, a rotary winged kite for making distant observations.

Type IXD2

Twenty eight Type IXD2s were built. In addition to their standard MAN diesel engines, this variant had two additional six cylinder diesels which could be used for cruising on the surface. They had additional fuel bunkers, giving them the exceptional range of 23,700nm the longest range of any German attack U-boat. Like the IXD1, it was equipped with a Focke Achgelis kite.

Technical Specification

Type IXA Type IXB Type IXC
Role Long Range
Attack U-boat
Long Range
Attack U-boat
Long Range
Attack U-boat
Displacement
Surfaced
Submerged

1,032 tons
1,153 tons

1,051 tons
1,178 tons

1,120 tons
1,232 tons
Dimensions
Length
Beam
Draught

251.0ft (76.5m)
21.3ft (6.5m)
15.4ft (4.7m)

251.0ft (76.5m)
22.3ft (6.8m)
15.4ft (4.7m)

252.0ft (76.8m)
22.3ft (6.8m)
15.4ft (4.7m)
Top speed
Surfaced
Submerged

18.2 knots
7.7 knots

18.2 knots
7.3 knots

18.3 knots
7.3 knots
Maximum range
Surfaced at 12kt
Submerged at 4kt

8,100nm
65nm

8,700nm
64nm

11,000nm
63nm
Crush depth 656ft (200m) 656ft (200m) 656ft (200m)
Weapons
Bow tubes
Stern tubes
Torpedo capacity
Mines
Guns
 
 

Four 21 inch
Two 21in
22
None
1 x 105mm cannon
1 x 37mm Flak
1 x 20mm Flak

Four 21 inch
Two 21in
22
None
1 x 105mm cannon
1 x 37mm Flak
1 x 20mm Flak

Four 21 inch
Two 21in
22
None
1 x 105mm cannon
1 x 37mm Flak
1 x 20mm Flak
Crew 48 48 48
Total built 8 14 54

Type IXC/40 Type IXD1 Type IXD2
Role Long Range
Attack U-boat
Long Range
Attack U-boat
Long Range
Attack U-boat
Displacement
Surfaced
Submerged

1,144 tons
1,257 tons

1,610 tons
1,799 tons

1,616 tons
1,804 tons
Dimensions
Length
Beam
Draught

252.0ft (76.8m)
22.6ft (6.9m)
15.4ft (4.7m)

287.4ft (87.6m)
24.6ft (7.5m)
17.7ft (5.4m)

287.4ft (87.6m)
24.6ft (7.5m)
17.7ft (5.4m)
Top speed
Surfaced
Submerged

18.3 knots
7.3 knots

20.8 knots
6.9 knots

19.2 knots
6.9 knots
Maximum range
Surfaced at 12kt
Submerged at 4kt

11,400nm
63nm

9,900nm
57nm

23,700nm
57nm
Crush depth 656ft (200m) 656ft (200m) 656ft (200m)
Weapons
Bow tubes
Stern tubes
Torpedo capacity
Mines
Guns
 
 

Four 21 inch
Two 21in
22
None
1 x 105mm cannon
1 x 37mm Flak
1 x 20mm Flak

Four 21 inch
Two 21in
24
None
1 x 105mm cannon
1 x 37mm Flak
1 x 20mm Flak

Four 21 inch
Two 21in
24
None
1 x 105mm cannon
1 x 37mm Flak
1 x 20mm Flak
Observation kite None Focke-Achgelis FA-330 Focke-Achgelis FA-330
Crew 48 55 57
Total built 87 2 28




U-995 German Type VIIC U-Boat


Directory
Battle of The Atlantic   Historical Battles   U-Boat Tactics   U-Boat Personalities   Medals & Awards  
Photo Gallery   Video Library   Articles   U-Boat Types   Midget Submarines   U-Boat Weapons   U-Boat Equipment  
Bridge Conversion   U-Boat Crew   U-Boat Insignia   U-Boat Marches   U-Boat Sounds   U-Boat Scale Models  
Links Directory   Contact Us   Our Awards   Guestbook  
Copyright 2005-2012 © Uboataces. All rights reserved.