German submarine U-1105

Coordinates: 38°8′10″N 76°33′10″W / 38.13611°N 76.55278°W / 38.13611; -76.55278
Source: Wikipedia, the free encyclopedia.

U-995, last remaining Type VIIC U-boat, sister to U-1105
History
Nazi Germany
NameU-1105
Ordered14 October 1941
BuilderNordseewerke, Emden
Yard number227
Laid down6 July 1943
Launched20 April 1944
Commissioned3 June 1944
FateSurrendered on 10 May 1945
United Kingdom
NameN-16
Acquired10 May 1945
Commissioned29 June 1945
Out of service11 February 1946
Nickname(s)Black Panther
FateTransferred to the US Navy in 1946
United States
NameU-1105
Acquired1946
FateSunk on 19 September 1949
General characteristics
Type
Type VIIC/41 submarine
Displacement
Length
  • 67.10 m (220 ft 2 in)
    o/a
  • 50.50 m (165 ft 8 in)
    pressure hull
Beam
  • 6.20 m (20 ft 4 in) o/a
  • 4.70 m (15 ft 5 in) pressure hull
Height9.60 m (31 ft 6 in)
Draught4.74 m (15 ft 7 in)
Installed power
  • 2,800–3,200 PS (2,100–2,400 kW; 2,800–3,200 bhp) (diesels)
  • 750 PS (550 kW; 740 shp) (electric)
Propulsion
Speed
  • 17.7 knots (32.8 km/h; 20.4 mph) surfaced
  • 7.6 knots (14.1 km/h; 8.7 mph) submerged
Range
  • 8,500 nmi (15,700 km; 9,800 mi) at 10 knots (19 km/h; 12 mph) surfaced
  • 80 nmi (150 km; 92 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth250 m (820 ft)
Complement44-52 officers and enlisted men
Armament
Service record (Kriegsmarine)
Part of:
Identification codes: M 50 444
Commanders:
  • Oblt.z.S.
     Hans-Joachim Schwarz
  • 3 June 1944 – 10 May 1945
Operations:
  • 1 patrol:
  • 12 April – 10 May 1945
Victories: 1 warship total loss
(1,300 tons)
U-1105 BLACK Panther (Type VIIC German Submarine)
German submarine U-1105 is located in Maryland
German submarine U-1105
Nearest cityPiney Point, Maryland
Coordinates38°8′10″N 76°33′10″W / 38.13611°N 76.55278°W / 38.13611; -76.55278
Arealess than one acre
Built1944
ArchitectNordseewerke Shipyard
Architectural styleSubmarine Type VIIC
NRHP reference No.00001602[1]
Added to NRHP11 January 2001

German submarine U-1105, a

Type VII-C/41 U-boat of Nazi Germany's Kriegsmarine, was built at the Nordseewerke Shipyard, Emden, Germany, and commissioned on 3 June 1944. Oberleutnant zur See
Hans-Joachim Schwarz was given command. He would command U-1105 for the remainder of the war.

Design

supercharged diesel engines producing a total of 2,800 to 3,200 metric horsepower (2,060 to 2,350 kW; 2,760 to 3,160 shp) for use while surfaced, two Siemens-Schuckert GU 343/38-8 double-acting electric motors producing a total of 750 metric horsepower (550 kW; 740 shp) for use while submerged. She had two shafts and two 1.23 m (4 ft) propellers. The boat was capable of operating at depths of up to 230 metres (750 ft).[2]

The submarine had a maximum surface speed of 17.7 knots (32.8 km/h; 20.4 mph) and a maximum submerged speed of 7.6 knots (14.1 km/h; 8.7 mph).[2] When submerged, the boat could operate for 80 nautical miles (150 km; 92 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 8,500 nautical miles (15,700 km; 9,800 mi) at 10 knots (19 km/h; 12 mph). U-1105 was fitted with five 53.3 cm (21 in) torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, one 8.8 cm (3.46 in) SK C/35 naval gun, 220 rounds, and an anti-aircraft gun. The boat had a complement of between forty-four and sixty.[2]

Armament

FLAK weaponry

U-1105 was mounted with a single

2cm Flak C38 in a M 43U Zwilling mount with short folding shield on the upper Wintergarten.[3] The M 43U mount was used on a number of U-boats (U-190, U-250, U-278, U-337, U-475, U-853, U-1023, U-1058, U-1109, U-1165, and U-1306
).

  • A single 3.7 cm Flak M42U gun on the LM 42U mount.
    A single 3.7 cm Flak M42U gun on the LM 42U mount.
  • 2 cm Flak C38 in a M 43U Zwilling mount with short folding shield.
    2 cm Flak C38 in a M 43U Zwilling mount with short folding shield.

Sensors

Passive sonar

U-1105 was one of only ten Type VIIC's to be fitted with a Balkongerät (literally 'Balcony apparatus or equipment'). The Balkongerät was used on U-boats (

Type X. The Balkongerät was an improved version of Gruppenhorchgerät (GHG) (group listening device). The GHG had 24 hydrophones, the Balkongerät had 48 hydrophones and improved electronics, which enabled more accurate readings to be taken.[4]

  • The outside view of the German design of Balcongerät installed on Type VIIC's
    The outside view of the German design of Balcongerät installed on Type VIIC's

Service history

Kriegsmarine

It was one of less than ten submarines that the Germans outfitted with experimental

Type XXIII – U-4704, U-4708 and U-4709.[5][6][7]

After trials in the

Blackrock, Ireland in the spring of 1945. In April, U-1105 escaped detection by an Allied destroyer patrol. Days later, the U-boat detected three British destroyers that were part of the Second Division of the 21st Escort Group. The submarine fired two acoustic torpedoes at a range of 2000 meters and then dove to 100 meters to escape a counterattack. Fifty seconds passed before the first torpedo struck, with the second hitting just moments later. Thirty-two crewmen from U-1105's victim, HMS Redmill, were lost. The Allied search for U-1105 and the search for Redmill's survivors began immediately. The submarine, unable to maintain its 330-foot depth, sank to the bottom at 570 feet, remaining motionless. For the next 31 hours, the Allied squadron searched for the U-boat without success. U-1105 evaded detection for the remainder of World War II
.

On 4 May 1945, U-1105 received the last order from

Großadmiral Karl Dönitz: the war is over. Ironically, the submarine surrendered to the 21st Escort Group, the same escort group it attacked just a few weeks earlier. Ordered to the surface and intercepted by the Sunderland "NS-V" of No. 201 Squadron RAF which then escorted it,[8] the submarine proceeded to the Allied base at Loch Eriboll
, Scotland on 10 May 1945 to surrender.

Royal Navy

Though still operated by her German crew, U-1105 was re-designated as the

Lisahally, Northern Ireland. Given a British caretaker crew
she sat at Lisshally for several months before she was turned over to the United States as a war prize for study of its unique synthetic rubber skin.

United States Navy

In 1946, re-designated U-1105, the U-boat arrived in

Solomon's Island, Maryland
for explosives testing.

USS Salvager and USS Windlass were assigned to tow U-1105 into Chesapeake Bay where she was temporarily sunk. Salvage and towing tests were conducted from 10 to 25 August 1946. Moored on 29 September 1946 to allow pontoons to be fixed to her sides, U-1105 underwent another series of salvage and towing tests until 18 November 1946, when she was sunk off Point No Point Light, Maryland and buoys were left to mark the spot.

In the summer of 1949 U-1105 was raised again, towed into the

pressure hull cracked open by the explosion all the way around to the keel
. Little evidence was left to mark the wreck, so for the next 36 years the submarine was lost to history.

The wreck

On 29 June 1985, the wreck of U-1105 was discovered by a team of sport divers led by Uwe Lovas, approximately one mile west of Piney Point, Maryland, at 38°08′10″N 76°33′10″W / 38.13611°N 76.55278°W / 38.13611; -76.55278. In November 1994, it was designated as Maryland's first historic shipwreck preserve. The program, the first of its kind in the state, was designed to promote the preservation of historic shipwreck sites while making them accessible to the general public.

At the wreck site, the conning tower rises to within 68 feet of the surface. The wood covered main deck fore and aft of the conning tower is occasionally exposed by the drifting silt beds. The wreck is well preserved, and largely intact. Seasonally, thick layers of marine growth appear and then disappear on the site, often covering structural features. Between April and December, a large blue and white mooring buoy is anchored about 70 feet (21 m) from the wreck, while a small, orange ball float is anchored to the stump of the forward (air-search) periscope.

The site is maintained for the Maryland Historical Trust by the Battle of the Atlantic Research and Expedition Group (BAREG.org), and was placed on the National Register of Historic Places in 2001.[1]

Summary of raiding history

Date Ship Name Nationality Tonnage[Note 1] Fate[9]
27 April 1945 HMS Redmill  Royal Navy 1,300 Total loss

References

Notes

  1. gross register tons. Military vessels are listed by tons displacement
    .

Citations

  1. ^ a b "National Register Information System – (#00001602)". National Register of Historic Places. National Park Service. 9 July 2010.
  2. ^ a b c d Gröner 1991, pp. 43–46.
  3. ^ a b Base on war-time photographs.
  4. ^ "Hydrophones". U-boats Aces - uboataces.com. Retrieved 20 May 2016.
  5. ISBN 1-55750-860-7
    .
  6. ISBN 3-7637-6272-8
  7. ^ "Recubrimiento Anti-Sonar". u-historia.com. Retrieved 17 December 2010.
  8. ^ "1952 - 1046 - Flight Archive". Retrieved 20 March 2016.
  9. ^ Helgason, Guðmundur. "Ships hit by U-1105". German U-boats of WWII - uboat.net. Retrieved 9 December 2014.

Bibliography

External links
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