The Colossus class was a class of relatively small aircraft carriers which were designed to be built quickly to meet the Royal Navy's requirements for more carriers to allow it to fight a global war. In order to allow speedy build, they were designed to mercantile rather than navy hull standards, while armour protection and long-range anti aircraft guns were not fitted.[1][2][3] Sixteen ships were ordered by the end of 1942, but the last six were completed to a modified design as the Majestic-class.[4]
Triumph was 695feet 0inches (211.84m)long overall, 650 feet (198.12m)at the waterline and 630 feet (192.02m)between perpendiculars.[5][6]Beam was 80 feet (24.38m) and draught was 23feet 6inches (7.16m) at deep load. Displacement was 13,190 long tons (13,400t) standard and 18,040 long tons (18,330t) deep load.[5] Four Admiralty 3-drum boilers supplied steam to two sets of Parsons geared steam turbines which in turn drove two propeller shafts. The machinery was rated at 40,000 shaft horsepower (30,000kW), giving a speed of 25 knots (29mph; 46km/h). The ships had a range of 12,000 nautical miles (14,000mi; 22,000km) at a speed of 14 knots (16mph; 26km/h).[5]
The flight deck was 690 feet (210.3m) long and 80 feet (24.4m) wide, while the hangar was 275 feet (83.8m) long (with a 57 feet (17.4m) extension aft of the rear lift), 52 feet (15.8m) wide with a clear overhead height of 17feet 6inches (5.33m).[6] Two aircraft lifts (each 45 by 34 feet (14m ×10m) and with a capacity of 15,000lb (6,800kg) carried aircraft between the hangar and flight deck. A single BH3 catapult, capable of propelling a 16,000lb (7,300kg) to a speed of 66 knots (76mph; 122km/h), was fitted. 42 aircraft could be carried.[6][7]Triumph was fitted with a close-in anti-aircraft armament of six quadruple 2-pounder (40 mm) pom-pom autocannon and nineteen single Bofors 40 mm guns. Four 3-pounder (47 mm) saluting guns were also fitted.[6]
In 1950, Triumph was on a cruise to Japan as part of the Far East Fleet. She was nearing Hong Kong when news reached Triumph and her accompanying ships of war breaking out in the Korean peninsula, forcing Triumph into a state of alert, including fully armed aircraft on deck. Triumph, escorted by the destroyerCossack, who would also act as an escort to Triumph's sister shipTheseus, was refuelled and re-provisioned at the Royal Australian Naval base at Kure, Japan. The C-class destroyer Consort and the cruiser Jamaica, who would both have prominent roles during the Korean War, as well as the Australian River-classfrigateShoalhaven, and the Royal Fleet AuxiliarytankerWave Conqueror, joined Triumph as she left the base.
The following day, she and her escorts, headed for Okinawa, refuelling at the American base there. Then they proceeded to western Korean waters, where other Royal Navy warships were converging. At this time, she was the sole British carrier in the Far East. She was thus destined to have a vital role in the early months of the Korean War. After joining the US Fleet, 827 Naval Air Squadron, part of Triumph's air group, commenced operations with a number of Fireflies in the strike role, with 800 Naval Air Squadron providing fighter cover and secondary strike capability with their Seafires, a naval variant of the Spitfire.
The Seafires and Fireflies of Triumph, in conjunction with aircraft from the American carrier Valley Forge, hit airfields at Pyongyang and Haeju on 3 July, the first carrier strikes of the war, with Triumph launching twelve Fireflies and nine Seafires, all armed with rockets, against Heaju.[12] The Seafires, though agile and fast, had an appearance that was a liability when operating with allied forces. The aircraft had a remarkable similarity to the Yak-9, a Second World War Sovietfighter aircraft, in service with the North Korean forces. Such similarities would play to an almost tragic incident further into Triumph's deployment during the Korean War.
On 19 July 1950, Lieutenant P. Cane, flying a Sea Otter, an air-sea rescue aircraft, performed the last operational sea rescue of that type,[13] when a F4U Corsair had been shot down by anti-aircraft fire, forcing the American pilot to ditch into very rough seas. The Sea Otter landed despite the adverse conditions and the American pilot was soon rescued. The Sea Otter returned to Triumph successfully, thanks mainly to the skill of the pilot, who was awarded the US Air Medal as a result.[14]
On 28 July, an almost tragic event occurred, when a flight of Seafires were deployed to an area to investigate possible enemy air activity. They discovered that the activity was a flight of American B-29 bombers. One of the Seafires was hit by one of the bombers in its fuel tank forcing the pilot to bail out and land in terrible sea conditions. Rescue by Sea Otter was impossible due to the appalling conditions. The pilot was forced to wait about an hour until he was rescued by the American destroyer Eversole.
Further combat air patrol (CAP) and anti-submarine operations continued until she left Korean waters for Kure in Japan, where she spent her eight days there in refit. On 9 July, Triumph was back on the west coast of Korea, accompanied by the cruiser Kenya, the destroyer Comus and two Canadian warships, Athabaskan and Sioux. Seafires launched numerous photographic reconnaissance operations around areas such as Mokpo, Kunsan, Chinnam, as well as Incheon. Over the next few days, Seafires destroyed two North Korean gunboats, attacked railway tracks, small coaster vessels and oil tanks.
On 23 August, Triumph, with just nine operational aircraft left, returned to Sasebo, Japan, where she joined two other carriers, Valley Forge and Philippine Sea. While in harbour the North Koreans launched an unexpected air attack, hitting Comus, causing damage to her hull and killing one sailor in the process. She was escorted to Kure for repair by her sister ship Consort. This caused the carriers to be extra vigilant in the aftermath of the attack, with an increase in CAP operations.
On 29 August, another incident occurred, when a Fairey Firefly landed without an arrestor hook and was stopped by the safety barrier. A large piece of propeller blade broke off, hurtled towards the surface of the flying control position, breaking the glass of the operations room and entering the compartment with tragic consequences, striking Lieutenant Commander I. M. McLachlan, the commanding officer of 800 Naval Air Squadron, who later died from the injuries sustained in this freak incident. He was buried at sea off the coast of South Korea with full naval honours.
On 30 August, after a four-day patrol, Triumph returned to Sasebo, where she received 14 aircraft from the support carrier Unicorn. On 3 September, Triumph departed Sasebo for the West Coast of Korea. When she got there, her aircraft performed the now routine CAP missions along with reconnaissance duties and bombardment spotting for the Fiji-class cruiserJamaica and the destroyer Charity.
After 6 September, Triumph, accompanied by Athabaskan, Warramunga and Bataan, proceeded to the east coast of Korea to replace the carriers of the US 7th Fleet. Operations commenced on the 8th, with Fireflies and Seafires attacking numerous targets, causing much havoc for the North Korean forces.
On the 9th, bad weather forced operations to limit themselves to just eight sorties, with four Fireflies attacking the airfield at Koryo, causing a large amount of damage. 800 NAS's aircraft was decreased yet again, now to just six aircraft, after four others had been written off. The following day, Triumph returned once again to Sasebo.
On 12 September, Triumph departed Sasebo, accompanied by Warramunga and the Royal Navy C-class destroyers - Charity, Cockade and Concord. Their objective, though unknown to the crews of the ships at that time, was to cover the landings at Incheon. The group, part of CTF91, a Commonwealth Task Force, was joined by the cruiser Ceylon and RAN warship, Bataan, and was now known as the Northern Group. There was also a much smaller Southern Group which comprised the Canadian ships Athabaskan, Cayuga and Sioux.
Triumph's aircraft provided vital air cover for the attacking forces in the first few days before the landings. After the landings took place, Triumph and her accompanying escort, provided anti-submarine patrols, while her aircraft commenced interdiction and spotting operations. The latter operations proved very successful, with Fireflies spotting for the cruisers Jamaica and Kenya. Thanks to the spotting by the Fireflies, Jamaica launched a devastating bombardment on North Korean positions, destroying a hidden cache of weapons, which resulted in the top of a hill being obliterated, creating a large plume of smoke that reached 8,000feet.
The end of the day's operations led to a message to the commander of the Commonwealth naval forces, Admiral Andrewes, from the United Nations' overall commander, General Douglas MacArthur, "My heartiest felicitations on the splendid conduct of the Fleet units under your command. They have added another glamorous page to the long and brilliant histories of the Navies of the British Commonwealth."
By the end of D-Day an astonishing 13,000 troops and all their equipment had been landed. On 17 September, North Korean aircraft bombed the American warship Rochester, as well as strafing the British cruiser Jamaica, killing one and wounding two. Shortly afterwards, both warships managed to carry out a brief bombardment of North Korean troops.
On 21 September, Triumph entered Sasebo for the last time in her deployment during the Korean War. She spent two days there in dry dock for temporary repairs, before departing for Hong Kong on 25 September, her role in the conflict being replaced by Theseus.
Remainder of service
After her Korean service Triumph was selected as the replacement for HMSDevonshire as a cadet training ship. She carried two terms each of 100 RN and Commonwealth cadets on three cruises each year, in the Spring to the West Indies, in the summer to Scandinavia and around the UK, and in the autumn to the Mediterranean. She carried three Sea Balliol aircraft with which to inculcate air-mindedness in the cadets.
In 1952, Triumph was used for the first trials of an angled flight deck. Her original deck markings were obliterated and replaced with new ones at an angle to the long axis of the ship. The success of these trials led to the development of the now-standard design, with additional areas of the flight deck added to the port side of the ship.[15]
In 1954 she was diverted to ferry survivors of the troopship Empire Windrush from North Africa to Gibraltar for repatriation. In 1955 she replaced HMSAlbion on a 'goodwill' visit to Leningrad.[16] This terminated in her captain, Varyl Begg, carrying out a sternboard down the Neva against a beam gale after her hastily laid Soviet sternbuoy had dragged. Her cadet training duties ended with the autumn cruise of 1955, when changes in the system of training RN officers rendered her redundant. Shortly before arriving home to Devonport, Triumph executed the last axial-deck landing in the RN.
HMS Triumph as a heavy repair ship.
Triumph was then converted, between 1956 and 1965, into a heavy repair ship, emerging from the work with the pennant number "A108". Triumph was based in Singapore after her conversion, being involved in a major exercise in 1968 in the Solomon Sea (Exercise Coral Sands?), with numerous capital ships from the United Kingdom and other nations taking part, as well as dozens of destroyers and frigates. Triumph was used as a heavy repair and transport ship for troops. In 1975 she was placed in reserve[17] at Chatham Dockyard where she was used as a backdrop for the annual Navy Days, and in 1981 she was struck and sold for scrapping in Spain that December. The Ministry of Defence did enquire into the possibility of buying her back following the Falklands Crisis in April 1982 but dismantling was already too far advanced.
Nachi (那智) was the second vessel completed of the four-member Myōkō class of heavy cruisers of the Imperial Japanese Navy (IJN), which were active in World War II. The other ships of the class were Myōkō, Ashigara, and Haguro. She was named after a mountain in Wakayama Prefecture.
HMS Ocean was a Royal Navy Colossus-class light fleet aircraft carrier of 13,190 tons built in Glasgow by Alexander Stephen & Sons. Her keel was laid in November 1942, and she was commissioned on 8 August 1945.
HMCS Magnificent was a Majestic-class light aircraft carrier that served the Royal Canadian Navy from 1948–1957. Initially ordered by the Royal Navy during World War II, the Royal Canadian Navy acquired the Magnificent while waiting for another aircraft carrier to be completed to their needs and it entered service in 1948 replacing in service HMCS Warrior which had been loaned for two years by the RN.
HMS Warrior was a Colossus-class light aircraft carrier which was ordered in 1942 by the British Royal Navy during World War II. Construction was finished in 1945 and upon completion, the aircraft carrier was loaned to the Royal Canadian Navy from 1946 to 1948 as HMCS Warrior. Warrior was returned to the Royal Navy in 1948 and entered service with the British. While in service with the Royal Navy, Warrior was modernised twice, including the installation of an angled flight deck in 1956. In 1948–1949, the ship was used in aircraft landing experiments and fitted with a rubber flight deck and in 1957, was used as the headquarters ship during nuclear testing at Christmas Island. In 1958, the vessel was sold to the Argentine Navy and entered Argentine service in 1959 as ARA Independencia. The aircraft carrier remained in service until 1970 when Independencia was placed in reserve. The following year, the ship was sold for scrap.
HMS Indomitable was a modified Illustrious-class aircraft carrier built for the Royal Navy during World War II. Originally planned to be the fourth of the class, she was redesigned to enable her to operate more aircraft, 48 instead of 36. A second hangar was added above the original, raising the flight deck by 14 feet (4.3 m), although the hangar-side armour had to be reduced to compensate. The lower hangar was made shorter than the upper hangar due to the need for extra workshops and accommodation to support the added aircraft.
HMS Ameer (D01) was an American escort carrier, the USS Baffins (CVE-35), that was transferred to the Royal Navy in mid-1943. As a Ruler-class escort carrier served in the Far East until the end of the war. Ameer was returned to the US Navy in 1946 and sold off to commercial service.
HMS Kenya was a Fiji-class cruiser of the Royal Navy. The ship was named after Kenya, a British possession at the time of the ship's construction.
HMS Indefatigable was one of two Implacable-class aircraft carriers built for the Royal Navy (RN) during World War II. Completed in 1944, her aircraft made several attacks that year against the German battleship Tirpitz, inflicting only light damage; they also raided targets in Norway. The ship was transferred to the British Pacific Fleet (BPF) at the end of the year and attacked Japanese-controlled oil refineries in Sumatra in January 1945 before joining the American forces in March as they prepared to invade the island of Okinawa in Operation Iceberg. Indefatigable and the BPF joined the Americans in attacking the Japanese Home Islands in July and August. Following the end of hostilities she visited ports in Australia, New Zealand and South Africa.
The Implacable-class aircraft carrier consisted of two aircraft carriers built for the Royal Navy during World War II. Derived from the design of the Illustrious class, they were faster and carried more aircraft than the older ships. They were initially assigned to the Home Fleet when completed in 1944 and attacked targets in Norway as well as the German battleship Tirpitz. Subsequently, they were assigned to the British Pacific Fleet (BPF).
HMS Implacable was the name ship of her class of two aircraft carriers built for the Royal Navy during World War II. Upon completion in 1944, she was initially assigned to the Home Fleet and attacked targets in Norway for the rest of the year. She was subsequently assigned to the British Pacific Fleet (BPF) where she attacked the Japanese naval base at Truk and targets in the Japanese Home Islands in 1945. The ship was used to repatriate liberated Allied prisoners of war (PoWs) and soldiers after the Japanese surrender, for the rest of the year. Implacable returned home in 1946 and became the Home Fleet's deck-landing training carrier, a role that lasted until 1950. She briefly served as flagship of the Home Fleet in 1950. During this time she participated in many exercises and made a number of port visits in Western Europe. She was placed in reserve in 1950 and converted into a training ship in 1952, and served as flagship of the Home Fleet Training Squadron. The ship was considered for a major modernisation in 1951–1952, but this was rejected as too expensive and time-consuming. Implacable was decommissioned in 1954 and sold for scrap the following year.
The 1942 Design Light Fleet Carrier, commonly referred to as the British Light Fleet Carrier, was a light aircraft carrier design created by the Royal Navy during the Second World War, and used by eight naval forces between 1944 and 2001. They were designed and constructed by civilian shipyards to serve as an intermediate step between the expensive, full-size fleet aircraft carriers and the less expensive but limited-capability escort carriers.
HMS Venerable (R63) was a Colossus-class aircraft carrier of the Royal Navy. She served for only the last few months of World War II, and in 1948 she was sold to the Netherlands and renamed HNLMS Karel Doorman, taking part in the military clash in 1962 in Western New Guinea. Subsequently, she was sold to Argentina and renamed ARA Veinticinco de Mayo, later taking part in the Falklands War.
HMS Glorious was the second of the three Courageous-class battlecruisers built for the Royal Navy during the First World War. Designed to support the Baltic Project championed by the First Sea Lord, Lord Fisher, they were relatively lightly armed and armoured. Glorious was completed in late 1916 and spent the war patrolling the North Sea. She participated in the Second Battle of Heligoland Bight in November 1917 and was present when the German High Seas Fleet surrendered a year later.
HMS Courageous was the lead ship of her class of three battlecruisers built for the Royal Navy in the First World War. Designed to support the Baltic Project championed by First Sea Lord John Fisher, the ship was very lightly armoured and armed with only a few heavy guns. Courageous was completed in late 1916 and spent the war patrolling the North Sea. She participated in the Second Battle of Heligoland Bight in November 1917 and was present when the German High Seas Fleet surrendered a year later.
The British Pacific Fleet (BPF) was a Royal Navy formation that saw action against Japan during the Second World War. It was formed from aircraft carriers, other surface warships, submarines and supply vessels of the RN and British Commonwealth navies in November 1944.
HMS Furious was a modified Courageous-class battlecruiser built for the Royal Navy (RN) during the First World War. Designed to support the Baltic Project championed by the First Sea Lord, Lord Fisher, the ship was very lightly armoured and designed with a main battery of only two 18-inch guns. Furious was modified as an aircraft carrier while under construction. Her forward turret was removed and a flight deck was added in its place, such that aircraft had to manoeuvre around the superstructure to land. Later in the war, the ship had her rear turret removed and a second flight deck installed aft of the superstructure, but this was less than satisfactory due to air turbulence. Furious was briefly laid up after the war before she was reconstructed with a full-length flight deck in the early 1920s.
Myōkō (妙高) was the lead ship of the four-member Myōkō class of heavy cruisers of the Imperial Japanese Navy (IJN), which were active in World War II. She was named after Mount Myōkō in Niigata Prefecture. The other ships of the class were Nachi, Ashigara, and Haguro.
HMS Unicorn was an aircraft repair ship and light aircraft carrier built for the Royal Navy in the late 1930s. She was completed during World War II and provided air cover over the amphibious landing at Salerno, Italy, in September 1943. The ship was transferred to the Eastern Fleet in the Indian Ocean at the end of the year. Unicorn supported the aircraft carriers of the fleet on their operations until the British Pacific Fleet (BPF) was formed in November 1944. She was transferred to Australia in early 1945 to support the BPF's operations during Operation Iceberg, the Allied invasion of Okinawa in May. To shorten the time required to replenish the BPF's carriers, the ship was based in the Admiralty Islands and in the Philippine Islands until the Japanese surrender in August. Unicorn was decommissioned and placed in reserve when she returned to the UK in January 1946.
Operation Inmate was an attack by the British Pacific Fleet against Japanese positions on Truk Atoll in the central Pacific Ocean during the Second World War. The attacks against the isolated islands on 14 and 15 June 1945 were conducted to provide combat experience for the aircraft carrier HMS Implacable and several of the fleet's cruisers and destroyers ahead of their involvement in more demanding operations off the Japanese home islands.
Operation Goodwood was a series of British carrier air raids conducted against the German battleship Tirpitz at her anchorage in Kaafjord in occupied Norway during late August 1944. It was the last of several attacks made by the Home Fleet during 1944 which sought to damage or sink Tirpitz and thereby eliminate the threat it posed to Allied shipping. Previous raids on Kaafjord conducted by Fleet Air Arm aircraft had involved only one air attack; in Operation Goodwood several attacks were made in a single week. The Royal Navy hoped that these raids would wear down the formidable German defences.
References
Brown, David (1977). World War 2 Fact Files: Aircraft Carriers. London: Macdonald and Jane's. ISBN0-354-01008-5.
Chesneau, Roger (1998). Aircraft Carriers of the World, 1914 to the Present: An Illustrated Encyclopedia. London: Brockhamton Press. ISBN1-86019-875-9.
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