HMS Apollo (1891)

HMS Apollo, the sixth ship of the Royal Navy to be named for the Greek god Apollo, was a second-class Apollo-class cruiser protected cruiser launched in 1891 and converted to a minelayer in 1909 along with six of her sisters. They formed a minelaying squadron in 1914—15 during World War I, although Apollo was disarmed in 1915 and served in secondary roles until broken up in 1920.

Armament
Apollo carried two QF 6 in guns, one on the forecastle and the other on the poop and six QF 4.7-inch (120 mm) guns mounted in the waist. Four single QF 6 pounder Hotchkiss guns were carried in the waist, two more on the forecastle and two on the poop. Two 0.45 in Nordenfelt 5 barrel machine guns were mounted in the forecastle and two in the poop. One QF 3 pounder Hotchkiss gun was carried for use in the ship's boats, although it was provided one mount on each side of the after end of the waist. Four 14 in torpedo tube were fitted, two fixed on the stem and stern, and two broadside training tubes on the upper deck aft.

She was totally disarmed when she was converted to a minelayer in 1909 at Chatham Dockyard. Mine rails were fitted on her maindeck, which required that the cabins under the poop be removed, and she could carry a hundred mines. Her after deckhouse was extended and her magazines were converted to storerooms.

When World War I began she was given four QF 4.7 in guns, but these were again removed when she was disarmed in 1915.

Protection
Apollo's armored decks ranged from 2 - 1.25 in in thickness and her conning tower was 3 in thick. Her engine hatch was 5 in thick.

Propulsion
Apollo had 2-shaft steam reciprocating engines and five boilers that gave 7000 indicated horsepower (ihp) using natural draught and 9000 ihp using forced draught. She could make 18.5 kn using natural draught and20 kn at forced draught. She carried 535 LT of coal.

History
After a spell in the reserve, she was present at the Fleet Review for the Diamond Jubilee in 1897, and was transferred back to the reserve in 1900. In 1909 she was converted into a minelayer, and served in this role for the first year of the First World War. She and her sisters formed a squadron operating from Dover and the Nore. She was again disarmed in 1915 and either relegated to secondary roles or laid up until being broken up in 1920.