Sairdhom-class Submarine

The Sairdhom-class Submarine, formally the SH-1992-2 Deep Sea Support Vessel, is a class of Deep Sea Rescue Vehicle operated by Faneria and Brumalea. Its primary tasks are underwater repair, salvage, and rescue; a classified intelligence variant is known to exist but it is believed to be at most two vessels. There are currently eighteen of the civilian variant operated globally, with a redesign of the same general layout planned for production by 2030. Of the eighteen in service, one is owned by Brumalea, seven are owned by corporate entities or private firms, and the remaining ten are operated by Faneria. Six of Faneria's are active; the others are mothballed.

Class overview
Name:	TSH-1992-2 DSRV
Operators:	Fhainnin National Army
Built:	1995–present
In service:	1996–present
Completed:	19
Active:	14
Laid up:	4
Retired:	1
General characteristics
Type:	Deep Submergence Rescue Vehicle
Displacement:	55 tonnes (54 long tons)
Length:	13.5 m (44 ft 3 in)
Beam:	3.8 m (12 ft 6 in)
Height:	4.6 m (15 ft 1 in)
Speed:	3.3 knots (6.1 km/h; 3.8 mph) maximum 2.3 knots (4.3 km/h; 2.6 mph) cruise 0.5 metres per second (1.6 ft/s) ascent speed
Range:	22 nautical miles (40 km)
Endurance:	120 hours with 4 aboard 16 hours with 24 aboard
Test depth:	1,000 m (3,300 ft)
Capacity:	20 passengers
Crew:	4

History

Design

The name 'Sairdhom' is a shortening of 'Teasairdhom', itself a contraction of 'deep rescue' in Fhasen. Originally envisioned as a class of rescue vessels numbering no more than one or two, the Sairdhom was meant as an auxiliary vessel to the Fhainnin navy, acting as a black-box or, in rare instances, sailor recovery vehicle for submarines. However, as a result of increased funding and delays due to technology updates and role creep, the design eventually was bulked out to twice its original planned displacement, becoming the flagship design for deep-sea civilian vehicles in Faneria.

Service History

Sairdhom-04 prior to a salvage dive, Kilikas Sea c. 2024