The fourth ship to carry the name HMS Cossack earned the first Battle Honour for taking part in Belgium coast Operations 17 October 8 November 1914.

The contents include copies of the original building contract and detailed drawing for launching and layout of decks and machinery. She was taken over from the contractors on 2 April 1908 and served until 1919.  Her top speed was 34.619 Knots – 39.839 mph which is not far off a modern day ships speed.

HMS Cossack 1907

Year by Year

Discover the history of the HMS Cossack from 1907 to 1919.

You can search the ‘year’ and ‘month’ to find a specific date and also ‘click’ on the date itself to reveal any images and moments from that date.

01 April 1909
COSSACK formed part of the 1st Destroyer Flotilla, 1st Division, Home fleet
23 June 1911
At Spithead for Fleet Review
06 March 1912
Recommissioned at Sheerness. Captain H.F.P. Sinclair in command. Flagship of Rear Admiral CFG Cradock
08 March 1912
Sailed Sheerness for Bantry Bay for calibration.
01 May 1912

4th Destroyer flotilla (Portland)

03 July 1912

Sailed Sheerness for Portsmouth Captain E.H. Grafton in Command.

05 July 1912
Arrived Sheerness for commissioning
08 July 1912

Attended Fleet Inspection for MPs at Spithead

01 October 1913

COSSACK had joined the 4th Destroyer Flotilla based at Portsmouth. In October that year, the Tribals were officially designated the F class, and as such the letter “F” was painted on COSSACK’s bows.

During the First World War she served in the North Sea and the English Channel with the 6th Destroyer Flotilla.

01 August 1914

6th Destroyer flotilla

23 August 1914
Cossack was involved in a collision with her sister Tribal-class destroyer, Ghurka.
01 October 1914
COSSACK was one of a number of warships of the Dover Patrol that were deployed to help support Belgian ground forces during the Battle of the Yser, with all available ships being used to carry out shore bombardment operations. At one stage, on 20 October 1914, after the destroyer Amazon was damaged by German shellfire, Rear Admiral Horace Hoodtransferred his flag to COSSACK.
17 October 1914

Belgium Coast Operations

06 December 1914
Pendant number H 09
01 September 1915
Pendant number D02
26 October 1916

During the night of German torpedo boats of their Flanders Flotilla carried out a large scale raid into the English Channel, hoping to attack the drifters watching the anti-submarine nets of the Dover Barrage, and to sink Allied shipping in the Channel. Cossack was one of six Tribal-class destroyers waiting at readiness in Dover Harbour, and when the Germans attacked the drifters and sank the supporting destroyer HMS Flirt, they were ordered to intervene. The six destroyers became separated, an…

During the night of German torpedo boats of their Flanders Flotilla carried out a large scale raid into the English Channel, hoping to attack the drifters watching the anti-submarine nets of the Dover Barrage, and to sink Allied shipping in the Channel. Cossack was one of six Tribal-class destroyers waiting at readiness in Dover Harbour, and when the Germans attacked the drifters and sank the supporting destroyer HMS Flirt, they were ordered to intervene. The six destroyers became separated, and while several of them encountered groups of the German torpedo boats on their return leg, with HMS Nubian being badly damaged by a German torpedo and Amazon and Mohawk sustaining lesser damage from German gunfire, COSSACK did not engage the German ships.

01 July 1917
COSSACK collided with the transport SS The Duchess near Eastbourne. Cossack’s depth charges exploded as a result of the collision, sinking The Duchess and blowing off COSSACK​s stern. COSSACK was towed to Dover for repair.

EVEREST. Henry James Fireman Mercantile Marine SS ‘Duchess’ Lost when the ship was in collision with its escort HMS ‘Cossack’ 1st July 1917 off Beachy Head. Aged 35. Resident of 7 Hampden Gardens, South Heighton. Born in Ardingly Son of Eliza Evere…

COSSACK collided with the transport SS The Duchess near Eastbourne. Cossack’s depth charges exploded as a result of the collision, sinking The Duchess and blowing off COSSACK​s stern. COSSACK was towed to Dover for repair.

EVEREST. Henry James Fireman Mercantile Marine SS ‘Duchess’ Lost when the ship was in collision with its escort HMS ‘Cossack’ 1st July 1917 off Beachy Head. Aged 35. Resident of 7 Hampden Gardens, South Heighton. Born in Ardingly Son of Eliza Everest. Included on Newhaven War Memorial. No record with CWGC.

01 January 1918

Pendant number D19

16 September 1918

HMS Glatton (5000 ton monitor with 9.2 and 6inch guns) blew up as fire reached the cordite charges unobserved.  Hot clinker and ash had piled up against the bulkhead of the 6inch gun magazine. The heat burned through the cork insulation and then ignited the wooden lining. Since it was only a matter of time before the fire reached the after magazine, Keyes ordered the destroyer COSSACK to sink Glatton with a torpedo to protect a nearby ammunition ship. COSSACK fired two torpedoes at Glatton, one…

HMS Glatton (5000 ton monitor with 9.2 and 6inch guns) blew up as fire reached the cordite charges unobserved.  Hot clinker and ash had piled up against the bulkhead of the 6inch gun magazine. The heat burned through the cork insulation and then ignited the wooden lining. Since it was only a matter of time before the fire reached the after magazine, Keyes ordered the destroyer COSSACK to sink Glatton with a torpedo to protect a nearby ammunition ship. COSSACK fired two torpedoes at Glatton, one of which failed to detonate, while the second failed to defeat Glatton‍ ’​s anti-torpedo bulge.

In the end, Glatton was sunk by 21 inch torpedoes from the destroyer HMS Myngs (See article here)

01 November 1918

6th Destroyer Flotilla. Dover Patrol

Hidden Gems

The HMS COSSACK of 1917 collided with the transport, SS The Duchess, near Eastbourne, resulting in Cossack’s depth charges exploding. As a result of the collision, SS The Duchess sank and the blast blew off COSSACK​s stern. Date: 1st July 1917.

Anchor crest

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