Mk.8 Mod 1 4.5 inch

2001

Stealth and performance improvement over the Mod. 0 Mk.8 gun. It is also known as the Kryten gun, after the character in the popular UK TV science fiction series Red Dwarf.

Naval Gun · artillery
caliber (mm):	113
Rate of fire (round/min):	25
range (km):	22

Class Family

Mark 8 4.5 inch (114mm)
- Mk.8 Mod 1 4.5 inch

Used by

Year	Type	Class	Qty
1980	Guided-Missile Destroyer	Type 42 (Batch 3)
1988	Frigate	Type 22 (Batch 3) Cornwall class
1989	Frigate	Type 23 Duke class
2009	Guided-Missile Destroyer	Type 45 Daring class

Refits

Date	Ship	Class	Event
2001	HMS Norfolk F230	Type 23 Duke class	First ship to be fitted with Mod 1, Mk 8 4.5 gun
Oct 2008	HMS Campbeltown F86	Type 22 (Batch 3) Cornwall class	to Rosyth for a substantial refit by Babcock International. As well as a Sea Wolf missile system mid life update, a new Mk 8 Mod 1 main gun and Type 22 SEL, a major structural survey led to further unexpected work, delaying the completion of the refit until 20 Jan 2010.
Dec 30, 2008	HMS Montrose F236	Type 23 Duke class	at Babcock until Sep 2009, for extensive refit programme, including Seawolf mid life upgrade.
May 2009	HMS Westminster F237	Type 23 Duke class	Entered HMD Devonport for refit until mid Mar 2010 with Babcock, to address Seawolf and its control system.
Oct 9, 2009	HMS Argyll F231	Type 23 Duke class	to Babcock at Rosyth for an 11 month refit, including the Seawolf mid life upgrade returning to HMNB Devonport on 30 Sep 2010.
Apr 2013	HMS St Albans F83	Type 23 Duke class	at Portsmouth for 15 month refit including Kryten gun and Seawolf system update. Rejoined fleet on 1 Aug 2014.