Today in Naval History - Naval / Maritime Events in History
27 May 1941 - German battleship Bismarck was scuttled by her crew, and sank with heavy loss of life
Part II
Operation Rheinübung
Main article: 
Operation Rheinübung
 Bismarck
Bismarck, photographed from 
Prinz Eugen, in the Baltic at the outset of Operation Rheinübung
On 5 May 1941, Hitler and 
Wilhelm Keitel, with a large entourage, arrived to view 
Bismarck and 
Tirpitz in Gotenhafen. The men were given an extensive tour of the ships, after which Hitler met with Lütjens to discuss the upcoming mission. On 16 May, Lütjens reported that 
Bismarck and 
Prinz Eugen were fully prepared for Operation Rheinübung; he was therefore ordered to proceed with the mission on the evening of 19 May. As part of the operational plans, a group of eighteen supply ships would be positioned to support 
Bismarck and 
Prinz Eugen. Four 
U-boats would be placed along the convoy routes between 
Halifax and Britain to scout for the raiders.
By the start of the operation, 
Bismarck's crew had increased to 2,221 officers and enlisted men. This included an admiral's staff of nearly 65 and a prize crew of 80 sailors, who could be used to crew transports captured during the mission. At 02:00 on 19 May, 
Bismarck departed Gotenhafen and made for the 
Danish straits. She was joined at 11:25 by 
Prinz Eugen, which had departed the previous night at 21:18, off Cape Arkona. The two ships were escorted by three 
destroyers—
Z10 Hans Lody, 
Z16 Friedrich Eckoldt, and 
Z23—and a 
flotilla of 
minesweepers. The 
Luftwaffe provided air cover during the voyage out of German waters. At around noon on 20 May, Lindemann informed the ship's crew via loudspeaker of the ship's mission. At approximately the same time, a group of ten or twelve Swedish aircraft flying reconnaissance encountered the German force and reported its composition and heading, though the Germans did not see the Swedes.
An hour later, the German flotilla encountered the Swedish 
cruiser HSwMS Gotland; the cruiser shadowed the Germans for two hours in the 
Kattegat. 
Gotland transmitted a report to naval headquarters, stating: "Two large ships, three destroyers, five escort vessels, and 10–12 aircraft passed 
Marstrand, course 205°/20'."
[35] The OKM was not concerned about the security risk posed by 
Gotland, though both Lütjens and Lindemann believed operational secrecy had been lost. The report eventually made its way to Captain Henry Denham, the British naval attaché to Sweden, who transmitted the information to the 
Admiralty. The code-breakers at 
Bletchley Park confirmed that an Atlantic raid was imminent, as they had 
decrypted reports that 
Bismarck and 
Prinz Eugen had taken on prize crews and requested additional 
navigational charts from headquarters. A pair of 
Supermarine Spitfires was ordered to search the Norwegian coast for the flotilla.
German aerial reconnaissance confirmed that one 
aircraft carrier, three battleships, and four cruisers remained at anchor in the main British naval base at 
Scapa Flow, which confirmed to Lütjens that the British were unaware of his operation. On the evening of 20 May, 
Bismarck and the rest of the flotilla reached the Norwegian coast; the minesweepers were detached and the two raiders and their destroyer escorts continued north. The following morning, radio-intercept officers on board 
Prinz Eugen picked up a signal ordering British reconnaissance aircraft to search for two battleships and three destroyers northbound off the Norwegian coast. At 7:00 on the 21st, the Germans spotted four unidentified aircraft, which quickly departed. Shortly after 12:00, the flotilla reached 
Bergen and anchored at 
Grimstadfjord, where the ships' crews painted over the Baltic camouflage with the standard "outboard grey" worn by German warships operating in the Atlantic.

Aerial reconnaissance photo showing 
Bismarck anchored (on the right) in Norway
When 
Bismarck was in Norway, a pair of Bf 109 fighters circled overhead to protect her from British air attacks, but Flying Officer Michael Suckling managed to fly his Spitfire directly over the German flotilla at a height of 8,000 m (26,000 ft) and take photos of 
Bismarck and her escorts. Upon receipt of the information, Admiral 
John Tovey ordered the 
battlecruiser HMS Hood, the newly commissioned battleship 
HMS Prince of Wales, and six destroyers to reinforce the pair of cruisers patrolling the 
Denmark Strait. The rest of the 
Home Fleet was placed on high alert in Scapa Flow. Eighteen bombers were dispatched to attack the Germans, but weather over the 
fjord had worsened and they were unable to find the German warships.
Bismarck did not replenish her fuel stores in Norway, as her operational orders did not require her to do so. She had left port 200 t (200 long tons) short of a full load, and had since expended another 1,000 t (980 long tons) on the voyage from Gotenhafen. 
Prinz Eugen took on 764 t (752 long tons) of fuel. At 19:30 on 21 May, 
Bismarck, 
Prinz Eugen, and the three escorting destroyers left Bergen. At midnight, when the force was in the open sea, heading towards the Arctic Ocean, Raeder disclosed the operation to Hitler, who reluctantly consented to the raid. The three escorting destroyers were detached at 04:14 on 22 May, while the force steamed off 
Trondheim. At around 12:00, Lütjens ordered his two ships to turn toward the Denmark Strait to attempt the break-out into the open Atlantic.
By 04:00 on 23 May, Lütjens ordered 
Bismarck and 
Prinz Eugen to increase speed to 27 knots (50 km/h; 31 mph) to make the dash through the Denmark Strait. Upon entering the Strait, both ships activated their FuMO radar detection equipment sets. 
Bismarck led 
Prinz Eugen by about 700 m (770 yd); mist reduced visibility to 3,000 to 4,000 m (3,300 to 4,400 yd). The Germans encountered some ice at around 10:00, which necessitated a reduction in speed to 24 knots (44 km/h; 28 mph). Two hours later, the pair had reached a point north of Iceland. The ships were forced to zigzag to avoid 
ice floes. At 19:22, 
hydrophone and radar operators aboard the German warships detected the cruiser 
HMS Suffolk at a range of approximately 12,500 m (13,700 yd). 
Prinz Eugen's radio-intercept team decrypted the radio signals being sent by 
Suffolk and learned that their location had been reported.
Lütjens gave permission for 
Prinz Eugen to engage 
Suffolk, but the captain of the German cruiser could not clearly make out his target and so held fire. 
Suffolk quickly retreated to a safe distance and shadowed the German ships. At 20:30, the heavy cruiser 
HMS Norfolk joined 
Suffolk, but approached the German raiders too closely. Lütjens ordered his ships to engage the British cruiser; 
Bismarck fired five salvoes, three of which straddled 
Norfolk and rained shell splinters on her decks. The cruiser laid a smoke screen and fled into a fog bank, ending the brief engagement. The concussion from the 38 cm guns' firing disabled 
Bismarck's FuMO 23 radar set; this prompted Lütjens to order 
Prinz Eugen to take station ahead so she could use her functioning radar to scout for the formation.
At around 22:00, Lütjens ordered 
Bismarck to make a 180-degree turn in an effort to surprise the two heavy cruisers shadowing him. Although 
Bismarck was visually obscured in a rain squall, 
Suffolk's radar quickly detected the manoeuvre, allowing the cruiser to evade. The cruisers remained on station through the night, continually relaying the location and bearing of the German ships. The harsh weather broke on the morning of 24 May, revealing a clear sky. At 05:07, hydrophone operators aboard 
Prinz Eugen detected a pair of unidentified vessels approaching the German formation at a range of 20 nmi (37 km; 23 mi), reporting "Noise of two fast-moving turbine ships at 280° relative bearing!"
Battle of the Denmark Strait
Main article: 
Battle of the Denmark Strait
At 05:45 on 24 May, German lookouts spotted smoke on the horizon; this turned out to be from 
Hood and 
Prince of Wales, under the command of 
Vice Admiral Lancelot Holland. Lütjens ordered his ships' crews to 
battle stations. By 05:52, the range had fallen to 26,000 m (28,000 yd) and 
Hood opened fire, followed by 
Prince of Wales a minute later. 
Hood engaged 
Prinz Eugen, which the British thought to be 
Bismarck, while 
Prince of Wales fired on 
Bismarck. 
Adalbert Schneider, the first gunnery officer aboard 
Bismarck, twice requested permission to return fire, but Lütjens hesitated. Lindemann intervened, muttering "I will not let my ship be shot out from under my ass." He demanded permission to fire from Lütjens, who relented and at 05:55 ordered his ships to engage the British.
 Bismarck
Bismarck as seen from 
Prinz Eugenafter the Battle of the Denmark Strait
The British ships approached the German ships head on, which permitted them to use only their forward guns; 
Bismarck and 
Prinz Eugen could fire full 
broadsides. Several minutes after opening fire, Holland ordered a 20° turn to port, which would allow his ships to engage with their rear gun turrets. Both German ships concentrated their fire on 
Hood. About a minute after opening fire, 
Prinz Eugen scored a hit with a high-explosive 20.3 cm (8.0 in) shell; the explosion detonated 
unrotated projectile ammunition and started a large fire, which was quickly extinguished. After firing three four-gun salvoes, Schneider had found the range to 
Hood; he immediately ordered rapid-fire salvoes from 
Bismarck's eight 38 cm guns. He also ordered the ship's 15 cm secondary guns to engage 
Prince of Wales. Holland then ordered a second 20° turn to port, to bring his ships on a parallel course with 
Bismarck and 
Prinz Eugen. Lütjens ordered 
Prinz Eugen to shift fire and target 
Prince of Wales, to keep both of his opponents under fire. Within a few minutes, 
Prinz Eugen scored a pair of hits on the battleship that started a small fire.
Lütjens then ordered 
Prinz Eugen to drop behind 
Bismarck, so she could continue to monitor the location of 
Norfolk and 
Suffolk, which were still 10 to 12 nmi (19 to 22 km; 12 to 14 mi) to the east. At 06:00, 
Hood was completing the second turn to port when 
Bismarck's fifth salvo hit. Two of the shells landed short, striking the water close to the ship, but at least one of the 38 cm 
armour-piercing shells struck 
Hood and penetrated her thin deck armour. The shell reached 
Hood's rear ammunition magazine and detonated 112 t (110 long tons) of 
cordite propellant. The massive explosion broke the back of the ship between the main mast and the rear funnel; the forward section continued to move forward briefly before the in-rushing water caused the bow to rise into the air at a steep angle. The stern also rose as water rushed into the ripped-open compartments. Schneider exclaimed "He is sinking!" over the ship's loudspeakers. In only eight minutes of firing, 
Hood had disappeared, taking all but three of her crew of 1,419 men with her.
 Bismarck
Bismarck firing her main battery during the battle
Bismarck then shifted fire to 
Prince of Wales. The British battleship scored a hit on 
Bismarck with her sixth salvo, but the German ship found her mark with her first salvo. One of the shells struck the bridge on 
Prince of Wales, though it did not explode and instead exited the other side, killing everyone in the ship's command centre, save Captain 
John Leach, the ship's commanding officer, and one other. The two German ships continued to fire upon 
Prince of Wales, causing serious damage. Guns malfunctioned on the recently commissioned British ship, which still had civilian technicians aboard. Despite the technical faults in the main battery, 
Prince of Wales scored three hits on 
Bismarck in the engagement. The first struck her in the 
forecastle above the waterline but low enough to allow the crashing waves to enter the hull. The second shell struck below the armoured belt and exploded on contact with the 
torpedo bulkhead, completely flooding a turbo-generator room and partially flooding an adjacent boiler room. The third shell passed through one of the boats carried aboard the ship and then went through the floatplane catapult without exploding.
At 06:13, Leach gave the order to retreat; only five of his ship's ten 14 in (360 mm) guns were still firing and his ship had sustained significant damage. 
Prince of Wales made a 160° turn and laid a smoke screen to cover her withdrawal. The Germans ceased fire as the range widened. Though Lindemann strongly advocated chasing 
Prince of Wales and destroying her, Lütjens obeyed operational orders to shun any avoidable engagement with enemy forces that were not protecting a convoy, firmly rejecting the request, and instead ordered 
Bismarck and 
Prinz Eugen to head for the North Atlantic. In the engagement, 
Bismarck had fired 93 armour-piercing shells and had been hit by three shells in return. The forecastle hit allowed 1,000 to 2,000 t (980 to 1,970 long tons) of water to flood into the ship, which contaminated fuel oil stored in the bow. Lütjens refused to reduce speed to allow damage control teams to repair the shell hole which widened and allowed more water into the ship. The second hit caused some additional flooding. Shell-splinters from the second hit also damaged a steam line in the turbo-generator room, but this was not serious, as 
Bismarck had sufficient other generator reserves. The combined flooding from these two hits caused a 9-degree 
list to port and a 3-degree 
trim by the bow.
	
	
		
			
				
			
			
				
				
				
					
						
							 
						
					
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