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	HSwMS Uppland in 2009
History
Sweden
Name	Uppland
Builder	Kockums
Laid down	21 October 1994
Launched	9 February 1996
Commissioned	October 1997
Homeport	Karlskrona, Sweden
Identification	MMSI number: 266114000; Callsign: SDYQ;
Motto	Prudentia et audacia ("Prudence And Boldness")
Status	Active in service
Badge
General characteristics
Class and type	Gotland-class submarine
Displacement	1526 tons standard, 1647 tons submerged
Length	60.4 m (198 ft 2 in)
Beam	6.2 m (20 ft 4 in)
Draught	5.6 m (18 ft 4 in)
Propulsion	2 × 1,300 bhp (970 kW) diesel engines; 2 × 75 kW Stirling engines; 1 × 1,800 shp (1,300 kW) electric motor, one shaft;
Speed	10 knots (19 km/h; 12 mph) surfaced; 20 knots (37 km/h; 23 mph) submerged;
Endurance	over 14 days submerged without snorkeling
Test depth	500 ft (150 m)
Complement	20 officers, 15 enlisted
Armament	4 × 533 mm (21 in) torpedo tubes with 12 torpedoes; 2 × 400 mm (15.7 in) torpedo tubes with 6 torpedoes; 48 external mines;

HSwMS Uppland (Upd) is one of three Gotland-class submarine built for the Royal Swedish Navy during the Cold War.^[1] The motto of HSwMS Uppland is "Prudencia Et Audacia" which translates into "Prudence And Boldness".

Mid-life upgrade

In 2020, HSwMS Uppland underwent a mid-life update. During the upgrade, a number of systems that will be used in the next generation submarines, the Blekinge-class (A26), were installed. More than 20 new systems on board the new Gotland-class was implemented, which contributes to their de-risking for the A26.^{[clarification needed]} This also offers training opportunities for the crew when they deploy the A26 in the future.

The upgrade process included many new systems, such as the Stirling AIP, a completely new mast suite, sonars and sensors as well as management and communication systems. In order to accommodate all systems, the submarine has extended to 62 m and gained another 200 tons in weight. In the process HSwMS Uppland reached a displacement (surfaced) of 1580 tons.