Ryder served on several ships throughout his career. He served as a midshipman on the battleship from 1927 to 1929. As a lieutenant he served in the submarine as part of the 4th Flotilla in China from 1930 to 1933. Ryder also commanded several expeditions. This included captaining the ketch Tai-Mo-Shan on a 16,217 mile voyage from Hong Kong to Dartmouth, England during 1933–1934. From 1934 to 1937 he captained the schooner Penola during the British Graham Land Expedition in Antarctica. When the Second World War started, Ryder was serving as a lieutenant commander on. In 1940, he was promoted to commander of the Q-ship which was sunk by a torpedo in the Atlantic, 200 miles west of Ireland; Ryder was adrift for four days before rescue. Appointed commander of the sloop. In early 1941, he went on to captain the Prince Philippe a cross-channel steamer converted to a Commando ship, which sank after a collision in the Firth of Clyde. Ryder, now a commander, led the St Nazaire Raid, codenamed Operation Chariot, on 28 March 1942. This was a successful operation to destroy the "Normandie Dock" in the German naval base in the town. The stated aim of the operation was to deny large German ships, particularly the German battleship Tirpitz, a base on the Atlantic coast. For his actions during this operation he was one of five people awarded the Victoria Cross, the highest award for valour of the British Empire.
Victoria Cross
The official citation: His medal is held by the Imperial War Museum, London.
Later naval career
Ryder took part in the Allied attack on the German-occupied port of Dieppe, Seine-Inférieure on the Northern coast of France on 19 August 1942. The Dieppe Raid was largely a failure, but it helped influence planning for Operation Overlord, the landings on D-Day. Ryder achieved a final rank of captain in 1948 and later served as naval attaché in Oslo.
Later life
Following his naval career, he stood for election to the Houses of Commons as the Conservative Party candidate for Merton and Morden at the 1950 general election. He was elected and served as the Member of Parliament for five years. He died on 29 June 1986, whilst on the yacht Watchdog during a sailing trip to France. He is buried in Headington Crematorium, Oxford.
