HSwMS Uppland (Upd)

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

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.

• Saunders, Stephen, ed. (2004). Jane's Fighting Ships 2004–2005. Coulsdon, UK: Jane's Information Group. ISBN 0-7106-2623-1.