On 8 December 1941, early in the morning, bombers of Mihoro Air Group
attacked Singapore. These and other Royal Navy operations in the Mediterranean theatre (September 1939 – December 1941) showed that it was risky but possible to operate in waters covered by enemy land-based air, as German and Italian aircraft damaged but could not stop
Malta convoys, while no British battleships had been lost. Phillips grossly underestimated the scale of attack, and believed that the majority of enemy attack aircraft would be level bombers rather than land-based naval torpedo bombers. However, the Japanese bombers that were assigned to attack his ships were specially trained and equipped for "ship killing", which the British did not realize due to intelligence failures. The Japanese force of torpedo bombers was also much larger than what the British had attacked with at Cape Matapan, all while Phillips' flotilla had fewer escorts than
Vittorio Veneto. The squadron's acting CO, Flight Lieutenant
Tim Vigors, had been advised of the radio procedures that would be used by Force Z. However, the extreme heat and humidity in
Malayan waters rendered her anti-aircraft fire control radars unserviceable and her
2-pounder ammunition had deteriorated as well. Royal Air Force technicians were called in to examine the
Princes radars but needed a week to effect repairs, and Force Z would be underway in a few days.
Departure After receiving word of a Japanese convoy bound for Malaya, Force Z, consisting of
Prince of Wales,
Repulse,
Electra,
Express,
Vampire and
Tenedos, sailed from Singapore at 17:10 on 8 December. Phillips hoped to attack off
Singora on 10 December; had he departed one day sooner, he might have achieved his objective without coming under air attack at all, for the Japanese squadrons had not yet arrived. They were joined by four s of Cruiser Division 7 and one
light cruiser, four destroyers of Destroyer Squadron 3. The cruiser , flagship of Vice Admiral Ozawa, was also ordered south to find Force Z. At about 17:30, just a half-hour before sunset, Force Z was spotted by three
Aichi E13A seaplanes, which had been catapulted off the Japanese cruisers , and , which were escorting the transports. Phillips' intention was no longer to attack off Singora, although Phillips changed course at 19:00 toward Singora, to deceive the shadowing aircraft, then south toward Singapore at 20:15, when darkness covered him.
Return to Singapore That night, one of the Japanese seaplanes dropped a flare over the Japanese heavy cruiser
Chōkai, having mistaken her for
Prince of Wales. After this, the Japanese force of six cruisers and several destroyers turned away to the northeast. The flare was also seen by the British force, which feared they had been identified and then turned away to the southeast. At this point, the forces were approximately 5 miles (9 km) apart but did not sight each other, and the Japanese force was not picked up on the radar of the
Prince of Wales. At 20:55, Phillips cancelled the operation, saying that they had lost the element of surprise, and ordered the force to return to Singapore. On the way back, they were spotted and reported by the Japanese submarine
I-58 at 03:40. They were ordered to proceed to the best-estimated position of the ships. The attack was carried out by nine
Mitsubishi G3M 'Nell' twin-engine bombers from the Genzan Air Group, each armed with one 500 kg (1,100 lb) armour-piercing bomb. They mistook the destroyer for a battleship and wasted their ordnance without scoring a hit. At 10:15, a scout plane to the north of most of the Japanese aircraft piloted by Ensign Masato Hoashi spotted Force Z and sent out a message detailing their exact position. The remaining Japanese planes converged upon the retreating British task force. The planes had spread out to search for the British warships, so they arrived over the target in small groups. With fuel running short, the Japanese attacked as they arrived rather than forming into a large force for a co-ordinated strike. The first wave was eight Nell bombers from the Mihoro Air Corps with 250 kg (550 lb) bombs, who attacked at 11:13, concentrating solely on
Repulse. Besides seven near misses they scored just one hit, which penetrated the hangar and the upper deck and exploded in the marine mess area. The bomb caused no serious damage and relatively few casualties, and
Repulse continued on at 25 kts (46 km/h, 29 mph), still in fighting trim. Five of the eight bombers were damaged by anti-aircraft fire, and two were forced to return to base. At around 11:40, 17 Nells with torpedoes (two squadrons from the Genzan Air Group) approached the two capital ships. Eight concentrated on
Repulse, while nine attacked
Prince of Wales, sending eight torpedoes speeding towards the flagship (one plane aborted its run on
Prince of Wales and peeled off and attacked
Repulse). One Nell was shot down and three more were damaged by the
Prince of Wales anti-aircraft fire during this attack. This first wave of torpedo attackers made no hits on
Repulse but managed one ultimately fatal hit on
Prince of Wales, right where her outer
port propeller shaft exited the hull (some historical accounts state there were two hits in this attack, but an extensive 2007 survey of the hull of the wreck by divers proved there was only one). Turning at maximum revolutions, the shaft twisted and ruptured the
glands that prevented sea water entering the ship via the broad shaft tunnel's interior bulkheads. The flagship promptly took in 2,400 tons of water and her speed dropped to 16 kts (30 km/h, 18 mph). Also flooded from this hit were the long shaft passage itself, 'Y' Action Machinery Room, the port Diesel Dynamo Room, 'Y' Boiler Room, the Central Auxiliary Machinery Room, and a number of other compartments aft. The torpedo hit had devastating further effects. First, it caused an 11.5-degree list to port, and
Prince of Wales was hit by another three torpedoes on her starboard side (some historical accounts At the same time as this last torpedo attack commenced against
Prince of Wales, planes from the Kanoya Air Group also attacked
Repulse from both starboard and port.
Repulse, which had dodged 19 torpedoes so far, was caught in a 'hammer and anvil' attack (or pincer attack) and was hit on the port side by one torpedo. Within minutes, further attacks resulted in at least three more torpedoes striking
Repulse. She had been hit seriously and Captain
William Tennant soon ordered the crew overboard;
Repulse listed heavily to port over a period of about six minutes and finally rolled over and sank stern-first at 12:33 with heavy casualties.
Prince of Wales was now under power by only one propeller shaft, but was still able to fire at a high-level bombing attack which commenced at 12:41, although only with S1 and S2 5.25 inch turrets. Although most of the bombs straddled her, one bomb penetrated her deck amidships. This bomb penetrated the upper deck and exploded amongst the wounded gathered in the Cinema Flat beneath, causing extensive casualties. Soon
Prince of Wales started to capsize to port (even though she had taken more torpedo hits to starboard) and HMS
Express came alongside to take off the wounded and non-fighting crew. The order to abandon ship was then given and soon after
Prince of Wales rolled over to port, floated for a brief moment upside down, and then sank stern-first at 13:18. The rumbling sound of the attacks was heard in Singapore. The Japanese had achieved eight torpedo hits, four each on
Prince of Wales and
Repulse, out of 49 torpedoes, while losing only three aircraft during the attack itself (one Nell torpedo bomber from the Genzan Air Group and two Betty torpedo bombers from the Kanoya Air Group) and a fourth plane was so badly damaged that it crashed on landing. The 2007 survey of the two wrecks confirmed that there were four torpedo hits on
Prince of Wales and could confirm only two hits on
Repulse, as the amidships area where the other two hits were reported was buried beneath the seabed. arrived over the battle area at 13:18, but it managed to escape the Buffalos and returned to confirm the sinkings. After they were rescued, some survivors of the
Repulse manned
action stations to free
Electra sailors to rescue more survivors. In particular,
Repulse gunners manned 'X' and 'Y' 4.7-inch (120 mm) mounts, and
Repulse's dentist assisted
Electra's medical teams with the wounded. In total nearly 1,000 survivors of
Repulse were rescued, 571 by
Electra.
Vampire picked up nine officers, 213 ratings, and one civilian war correspondent from
Repulse, and two sailors from
Prince of Wales. Of the high-ranking officers on
Prince of Wales,
Admiral Phillips and Captain
John Leach chose to
go down with their ship, and the senior survivors were Lt Cdr A. G. Skipwith, the ship's
First Lieutenant, and Cdr. (E) L. J Goudy, the chief engineer, who were rescued by
Express. Captain
Tennant of
Repulse was rescued by
Vampire. On returning to Singapore the rescued Captain Tennant was greeted by an equally distressed Air Vice-Marshal
Pulford, who exclaimed "My God, I hope you don’t blame me for this. I had no idea where you were". According to the
London Gazette report by Vigors: On the way back to Singapore with the survivors,
Express passed
Stronghold and the four American destroyers heading north.
Express signalled the action was over, but the ships proceeded to search the area for more survivors. None were found. While returning to Singapore from this search,
Edsall boarded the fishing trawler sighted by Force Z that morning. The trawler was identified as the Japanese vessel
Kofuku Maru, and was taken to Singapore, where the Japanese crew was interned. While the Japanese bombers were returning to their airfields in French Indochina, a second wave was being prepared for another attack on Force Z. They had not been given accurate information on the progress of the battle. The attack was called off as soon as they received confirmed reports of the sinkings from Ensign Hoashi. The next day, Lt Haruki Iki flew to the site of the battle, dropping two wreaths of flowers into the sea to honour combatants from both sides who had died in the battle. One was for the fellow members of his Kanoya Air Group, while the other was for the British sailors. ==Aftermath==