PRV Vidnolsk (UL-50)
 Artists rendering of the Vidnolsk with and without sea floor extensions and manipulator arms
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| History | |
|---|---|
 Arkava
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| Name: | Vidnolsk |
| Namesake: | Vidnolsk, Arkava |
| Ordered: | 5 January 2012 |
| Builder: | Eirin Maritime Shipyards, Allanea |
| Laid down: | 2 June 2015 |
| Launched: | 3 April 2019 |
| Commissioned: | 28 November 2022 |
| Homeport: | Velirinsk Naval Base |
| Status: | in active service |
| General characteristics | |
| Class and type: | Revere Coelacanth class submarine |
| Displacement: | 2,100 tons submerged |
| Length: | 70 m (229.7 ft) overall |
| Beam: | 7 m (23.0 ft) |
| Draft: | 9 m (29.5 ft) |
| Depth: | over 3,000 meters |
| Speed: | 30 knots |
| Range: | 35 years |
| Complement: | 25 |
| Armament: | None |
The PRV Vidnolsk (UL-50) is an Allanean Coelacanth-class submarine specializing in surveillance operations currently in service with the Arkavan Navy. She is the first ship named for the city of Vidnolsk, and was laid down on 2 June 2015 at Eirin Maritime Shipyards in Allanea. She was first launched on 3 April 2019, and was commissioned on 28 November 2022. Following sea trials in the Androva Ocean, the submarine and its crew were approved for active service on or around December 10th 2022.
Due to the sensitive nature of the submarines task of conducting surveillance on foreign adversaries, much of the history and mission profile of the submarine and its crew are unknown.
Design
The submarine has a reinforced hull, allowing it to dive to depths over 3,000 meters. The submarine and its crew specialize in surveillance operations mainly utilizing the submarines special forward manipulator arms to perform a variety of tasks. Though much of the submarine's more technical capabilities are classified, it is known that the submarine can retrieve objects and wreckage off the sea floor, tap undersea cables, and assist in the installation of underwater hydrophones, sensors, and power supplies.
Notably, the submarine reportedly lacks any armament due to its small size and dive depth capabilities make a torpedo launch tube a structural liability. The submarine also is notably equipped with specialized extendable landing skegs, so it can rest on the sea floor without damaging its exterior stealth coating. The submarine also comes equipped with horizontal and vertical auxiliary thrusters, hull mounted sensors, and a range of optical infrared cameras, sonar, and searchlights.