×
Aircraft / Aviation Vehicles & Artillery Infantry Arms Warships & Submarines Military Pay Chart (2023) Military Ranks
Advertisements
HOME
NAVAL WARFARE
MODERN FLEETS
COUNTRIES
SHIPBUILDERS
COMPARE
BY CONFLICT
BY TYPE
BY DECADE
BY CLASS
COLD WAR

Naval Warfare


Delfinen (class)


Diesel-Electric Attack Submarine [ 1961 ]



Four boats ultimately made up the Delfinen-class serving the Royal Danish Navy during the early stages of the Cold War period - all were decommissioned by the 1990s.



Authored By: Staff Writer | Last Edited: 01/07/2019 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.

GO TO SPECIFICATIONS [+]
Advertisements
In the post World War 2 world, a rebuilding Denmark required a modern undersea fighting force on par with its regional neighbors with the primary enemy to the West being the Soviet Union. This led to the design, development, and construction of four new submarines under the "Delfinen-class" name. The boats were Delfinen, Spaekhuggeren, Tumleren, and Springeren and these units were built from the period spanning 1954 to 1964. Commissioned service spanned from 1961 to 1990. Of the four, three were financed locally by the Danish government with the fourth made possible by a contribution from the United States (via "Cost-Share").

The class displaced 580 tons when surfaced and 660 tons when submerged. Overall length reached 176.9 feet with a beam of 15.4 feet and a draught of 13 feet - giving it good qualities to operate in the shallower waters off the Danish coast. Power was from 2 x B&W diesel engines outputting 1,200 horsepower for surface travel and 2 x BBC electric motors of 2,100 horsepower for undersea work. Maximum surfaced speeds reached 13.5 knots while undersea speeds maxed at 16 knots. Range was a useable 4,000 nautical miles.

Aboard was a crew of 33 men made up of seven officers and twenty-six enlisted. Armament became 4 x 533mm (21") bow-facing torpedo tubes with 8 x Reloads carried.

The profile of the boats was traditional, with a sail set at midships, a contoured bow, bulged hull sides, and tapered stern. A cruciform tailplane pattern was used. The dive planes were positioned at the upper sections of the forward hull area.

Lead-boat Delfinen was launched on May 4th, 1956 and entered commissioned service on August 1st, 1961. She managed a healthy service life until August 2nd, 1963, at which point she was decommissioned. Her stripped hulk was then sold for scrapping in September of 1984.

Spaekhuggeren was launched on February 20th, 1957, commissioned on August 1st, 1961, and served until decommissioned on July 31st, 1989. She was sold for scrap on December 3rd, 1991.

Tumleren followed on May 22nd, 1958, was commissioned on August 1st, 1961, and decommissioned on August 6th, 1981. She was sold off on September 7th, 1982.

Springeren was launched on April 22nd, 1963, commissioned on October 22nd, 1964, and decommissioned on March 31st, 1990. She became the only boat of the class to be saved from the scrapman's torch for she was given over to the Aalborg Maritime Museum to be preserved.

All of the boats were built by the Naval Dockyard of Copenhagen under "Project UB51". They represent the last indigenous submarines to emerge from Denmark. The modern Royal Danish Navy fields no submarines (2019).©MilitaryFactory.com
Note: The above text is EXCLUSIVE to the site www.MilitaryFactory.com. It is the product of many hours of research and work made possible with the help of contributors, veterans, insiders, and topic specialists. If you happen upon this text anywhere else on the internet or in print, please let us know at MilitaryFactory AT gmail DOT com so that we may take appropriate action against the offender / offending site and continue to protect this original work.
Advertisements

Specifications



Service Year
1961

Origin
Denmark national flag graphic
Denmark

Status
DECOMMISSIONED
Destroyed, Scrapped.
Complement
33
PERSONNEL


Class
Delfinen-class
Number-in-Class
4
VESSELS
Ships-in-Class


HDMS Delfinen; HDMS Spaekhuggeren; HDMS Tumleren; HDMS Springeren


National flag of Denmark Denmark
(OPERATORS list includes past, present, and future operators when applicable)
Submerged Attack
Traveling under the surface to search, track, and / or engage or reconnoiter areas.
Offshore Operation
Activities conducted near shorelines in support of allied activities.
Maritime Patrol
Active patroling of vital waterways and maritime areas; can also serve as local deterrence against airborne and seaborne threats.
Fleet Support
Serving in support (either firepower or material) of the main surface fleet in Blue Water environments.


Length
176.9 ft
53.92 m
Beam
15.4 ft
4.69 m
Draught
13.0 ft
3.96 m
Displacement
580
tons
Disp.Submerged
660
tons


Installed Power: 2 x B&W diesel engines developing 1,200 horsepower; 2 x BBC electric motors generating 2,100 horsepower; 2 x Shafts.
Surface Speed
13.5 kts
(15.5 mph)
Submerged Speed
16.0 kts
(18.4 mph)
Range
3,997 nm
(4,600 mi | 7,403 km)


kts = knots | mph = miles-per-hour | nm = nautical miles | mi = miles | km = kilometers

1 kts = 1.15 mph | 1 nm = 1.15 mi | 1 nm = 1.85 km
4 x 533mm (21") torpedo tubes with 8 x Reloads carried.


Supported Types


Graphical image of an aircraft aerial torpedo


(Not all weapon types may be represented in the showcase above)
None.


Military lapel ribbon for the Cold War period
Military lapel ribbon for early warship designs
Military lapel ribbon for the Falklands War
Military lapel ribbon for the 1991 Gulf War
Military lapel ribbon for the Korean War
Military lapel ribbon representing modern aircraft
Military lapel ribbon for the Attack on Pearl Harbor
Military lapel ribbon for the Russian Invasion of Ukraine
Military lapel ribbon for the Vietnam War
Military lapel ribbon for the World War 1
Military lapel ribbon for the World War 2


Ribbon graphics not necessarily indicative of actual historical campaign ribbons. Ribbons are clickable to their respective naval campaigns / operations / periods.

Advertisements




Disclaimer | Privacy Policy | Cookies


2023 Military Pay Chart Military Ranks DoD Dictionary Conversion Calculators Military Alphabet Code Military Map Symbols

The "Military Factory" name and MilitaryFactory.com logo are registered ® U.S. trademarks protected by all applicable domestic and international intellectual property laws. All written content, illustrations, and photography are unique to this website (unless where indicated) and not for reuse/reproduction in any form. Material presented throughout this website is for historical and entertainment value only and should not to be construed as usable for hardware restoration, maintenance, or general operation. We do not sell any of the items showcased on this site. Please direct all other inquiries to militaryfactory AT gmail.com.

Part of a network of sites that includes GlobalFirepower, a data-driven property used in ranking the top military powers of the world, WDMMA.org (World Directory of Modern Military Aircraft), WDMMW.org (World Directory of Modern Military Warships), SR71blackbird.org, detailing the history of the world's most iconic spyplane, and MilitaryRibbons.info, cataloguing military medals and ribbons.

View day-by-day actions of the American Civil War with CivilWarTimeline.net. View day-by-day actions of World War II with SecondWorldWarHistory.com.


©2023 www.MilitaryFactory.com • All Rights Reserved • Content ©2003-2023 (20yrs)