Battle History, Operation Juno


On June 4, 1940, s strong German force commanded by Vice-Admiral Marschall sailed from Kiel to attack the Allied withdrawal from Norway. This force consisted of the battlecruisers Gneisenau and Scharnhorst, plus the heavy cruiser Admiral Hipper and four destroyers. It passed the German mine barrier at Skagen, and headed Northwest to sweep for naval forces and transports off Harstad. The Germans are confident, and plan a prolonged operation assisted by Luftwaffe reconnaissance planes, operating in the near 24-hour daylight from Trondheim. On June 7, the tanker Dithmarschen, which refueled Admiral Hipper and the destroyers, joined the German fighting ships.
In the early morning on the 8th, the Admiral Hipper located and sank a British patrol trawler. Soon afterwards, the Gneisenau sighted the tanker Oil Pioneer, and set her afire with 105-mm guns, leaving her to be finished off by a destroyer's torpedo. Gneisenau and Hipper launched seaplanes to scout for Allied convoys, hoping to catch weakly escorted ships filled with British troops as they attempt to remove what assets they can from the failed attempt to hold Norway. It is good hunting weather: the skies are clear, the sea is calm, and visibility is unlimited.

He planes quickly find pray: two ships are sighted to the south of the Germans, and two to the north. The southern group is a merchant ship escorted by a British cruiser, but the northern group is two unescorted ships. Hipper and the destroyers dash north, sinking the 19,500-ton passenger ship Orama while jamming her distress signal. The other ship is the hospital ship Atlantis, which is allowed to pass without being stopped and searched. As it turns out, the ship contained a large number of German prisoners being transported to prison camps in the UK.

After this dash, the destroyers are again short of fuel, so Vice-Admiral Marschall sends the destroyers and Admiral Hipper will refuel at Trondheim, while he continues to operate against the convoys in the area between Tromsoe and Harstad.

At 1645 on the 8th, a lookout in the Scharnhorst's foretop reports that a distant cloud of smoke had been briefly viable on the horizon. Pressed for more details by the captain, Midshipman Goss describes it as "like a blubber when there's a bit of trouble with the boilers." Captain Hoffmann believes him, and orders the ship to action stations, and orders the Scharnhorst turned towards the position and run up to full speed. Gneisenau follows, and soon a mast is spotted over the horizon. Then a stocky funnel, and a small superstructure are made out: the squat shape of an aircraft carrier is unmistakable. At 27 miles lookouts correctly identify her as the HMS Glorious, and incredibly only two destroyers escort her. Captain Hoffmann comments to his navigation Office, "Poor Devil…Two battleships against one aircraft-carrier!"

Glorious is sailing south, unaware of the danger.

Operation Alphabet, the British and Allied evacuation of Norway, started on June 5, and was wrapping up on the 8th. Two troop convoys had been formed, sailing on the 7th and 8th. Glorious, along with the carrier Ark Royal, were to be part of the escort for the second convoy. After in addition to her 10 fighters and 5 torpedo planes, Glorious had flown on 20 RAF land-based fighters for transport back to Britain. Her captain signalled the task force commander on Ark Royal, and received permission to leave the convoy and proceed independently to Scapa Flow. With her destroyers Ardent and Acasta, she heads west at 22 knots, then turns south towards Scapa at 1600 hours.

Worried only about German submarines, the extremely fast carrier has slowed to 17 knots, and is sailing a zigzag course with her destroyers ranged off either bow. She is in the fourth degree of readiness, with only 12 of her 18 boilers are online, no aircraft staged on deck, no aircraft up patrolling, and no lookouts posted in the crow's nest. None of the ships are equipped with radar.

Shortly after turning south at 1600, lookouts spot two vessels on the horizon to the west. HMS Ardent was ordered to close investigate, and the order was given to bring the 5 Swordfish torpedo plane up to the flight deck. Action Stations was not sounded until 1620.

Ardent closed to within 16,000 yards, challenging the intruders by flashing her searchlight. The Gneisenau responded with her secondary guns at 1627, and Scharnhorst followed suit three minutes later. Ardent turned away, firing torpedoes which missed, and both destroyers made smoke to try and hide their charge. At 1632 Scharnhorst opened up on the carrier with her main guns, scoring the first hit with her third salvo at 1638, at a greater range than any other vessel had ever hit a moving target. This hit penetrated the flight deck, starting fired and reducing the carrier's speed. Gneisenau began firing her main guns at the carrier also at 1645. Another hit killed most of the bridge personnel and the captain. Glorious was burning furiously, but still making good speed. At 1658 the smoke screen became effective, causing the German ships to cease-fire until 1720.

Meanwhile, the destroyers put up a brave fight in a hopeless attempt to buy time for the wounded carrier . Ardent scored one hit on Scharnhorst with her 4.7-inch gun, which exploded harmlessly against one of the battlecruiser's main gun barrels. She succumbed to 5.9-inch fire from the German secondary guns, sinking at 1725.

At 1720 main battery fire resumed against Glorious, and a shell struck the center engine room. Glorious loss speed, healed over to starboard, and began a slow circle to port. The Germans ceased fire at 1740, and Glorious was abandoned at 1810. She capsized to starboard, and sank with heavy loss of life.

Ardent meanwhile had passed ahead of Scharnhorst and maneuvered off her starboard side, firing two salvos of four torpedoes, one at each German ship, and scoring a single hit with a 4.7-inch shell on Scharnhorst. As she turned away, she came under heavy and accurate fire from both ship's secondary batteries. She staggered away, burning and sinking. The Germans checked their fire at 1808, and Ardent slowly began to slip beneath the waves at 1820.

Her sacrifice was not in vain, for as she sank one of Ardent's torpedoes struck Scharnhorst below the rear turret, three meters below the main belt.

The damage was severe. A whole 6 meters by 14 meters was blown in the shell plating, and smoke filled the turret and magazine. The torpedo bulkhead was damaged, and there was much damage to the interior of the ship. The order was given to flood the magazine, but the smoke cleared and there was no sign of fire, so the order was countermanded. 22 compartments were flooded, and Scharnhorst took on 2500 tons of water, taking a 3-degree list and settling 3 meters by the stern. 48 men perished.

The starboard shaft was destroyed, and flooding, inadvertently let in when a watertight door was opened to rescue a trapped seaman, damaged the machinery to the center shaft. The rear 11.1-inch turret was out of action, as was the aft-most 150-mm twin turret and the fire control system for the aft 105-mm guns. Limited to 20 knots on one shaft, Scharnhorst limped into Trondheim, where she tied up to the repair ship Huaskaran on the afternoon of the 9th. RAF bombers found her the next day, and on the 11th a dozen Hudson bombers attacked, dropping 36 AP bombs but causing no further damage. On June 13th Ark Royal launched a strike, but 8 of her 15 Skua bomber were shot down in exchange for only one hit, which failed to explode.

After temporary repairs, Scharnhorst sailed for home on June 20th with two operational shafts and two operational main turrets. The British were waiting, and attacked twice with aircraft while she was off the coast of the Isle of Utsire, while powerful surface ships closed to within 35 miles of the wounded battlecruiser. German intelligence was alerted by intercepted British radio messages, and Scharnhorst put into Stavanger for two days. She eventually reached Kiel, where repairs took six months. Her sister Gneisenau was torpedoed by the British submarine Clyde, and spent months undergoing repair herself.

British losses were severe. 1,207 men were lost on the Glorious alone, with 1,519 being lost between the three ships. Two RAF pilots and 61 crewmen crawled aboard a Carley float, but their suffering was not over. The water was only 34 degrees, so only 38 of the 63 men survived to be rescued by a passing fishing boat, the Norwegian MS Borgund.

Oddly, both sides saw the engagement as a defeat. The British had lost a valuable carrier, two much needed destroyers, and over 1,500 sailors and pilots, so it is easy to see why the saw it as an embarrassing defeat. But the German High Command was equally upset. rather than destroying thousands of enemy troops by destroying the convoys, Operation Juno had resulted in the British succefully evacuating Norway. Upon his return to Trondheim with his damaged vessel, Vice-Admiral Marschall was relieved of command for disobeying his orders to attack shipping off Harstad, for endangering his ships by attacking British warships, and for expending too much ammunition for little gain.