HNoMS Nordkapp

In the evening of 9 April Nordkapp intercepted the 6,031-ton German tanker Kattegat[7][8] of Bremen[9] in the Glomfjorden south of Narvik. Kattegat was one of two naval tankers the Germans intended to use in order to quickly refuel the ten destroyers of the Narvik task force, enabling them to escape back to Germany before the Royal Navy could trap and sink them.[10] In preparation of her supply mission, Kattegat had departed the pilot station at Kopervik in Western Norway on 6 April, scheduled to arrive at Narvik on 9 April.[11] The Kriegsmarine support tanker had sailed to Norway from Wilhelmshaven on the German North Sea coast on 3 April in preparation for the invasion.[12] While the other tanker, the 11,766-ton whale oil factory ship Jan Wellem, had reached Narvik from the German Basis Nord at the Bolshaya Zapadnaya Litsa inlet on the Kola Peninsula in Russia before the German attack,[10][13][14] the captain of Kattegat had been warned of a British naval mine field in the Vestfjorden (Operation Wilfred) and refused to continue, choosing instead to anchor up in Sandlågbukta, Neverdal at Ørnes in Meløy.[10]

After closing to a cable length of Kattegat, Lieutenant Commander Seip hailed the German tanker, demanding that it identified itself. In response the German captain signalled that "Vidkun Quisling had been made the new prime minister of Norway and that all Norwegian naval vessels were under orders to cooperate with the German Kriegsmarine". Seip would receive no information from Kattegat before he himself had given his name and rank. While this signal exchange was going on Kattegat dispatched radio messages asking for Kriegsmarine assistance and escorting the remainder of the way to Narvik.[15]

Before he confronted the German ship, Nordkapp's commander had been instructed by the 3. Naval District to take her as a prize, but after speaking with two Norwegian pilots who had guided the German tanker a short time earlier he decided that this would be too hazardous an undertaking.[10]

As the pilots, who had entered Nordkapp during the patrol boat's signal exchange with Kattegat, reported that the tanker's thirty-nine-man crew were all armed and wearing naval uniforms, Seip considered it impossible to board and seize the ship, since his own 22-man crew had a total of only four rifles amongst them.[10][15] He assessed that to control the large German crew all the way into the port of Bodø while being outnumbered and probably out-gunned would have been too difficult.[10][16]

In response to the aggressive signals received from Kattegat, Seip signalled back a short message telling the German crew to abandon ship within 10 minutes or face the consequences. At the end of the ten minutes no reaction from the German crew had been observed and Nordkapp fired a warning shot.[16] As still no reaction could be seen in the protruding darkness, four 47 mm rounds were fired into Kattegat's waterline. As the Germans had opened their ship's valves while leaving the tanker, Kattegat sank quickly. Thirty-four of the crew were brought on board Nordkapp as PoWs from a nearby wharf, while the remaining five managed to escape into the hills after their ship was sunk.[10][16][17] The 34 PoWs from the German tanker were brought to Mosjøen and handed over to military authorities there.[16]

The effect of removing Kattegat from the Germans' supply chain was devastating,[18] the German destroyers at Narvik could only be refuelled two at a time, instead of the planned four at a time.[19] Also, Jan Wellem did not hold enough fuel for all 10 of the German destroyers.[16][20] Consequently, the German warships at Narvik failed to make their escape in time and were destroyed by the Royal Navy in the Battles of Narvik.[16][19] As the five-destroyer-strong 2nd Destroyer Flotilla under Commodore Bernard Warburton-Lee entered the Ofotfjord on 10 April to initiate the First Battle of Narvik, Vice Admiral William Whitworth, in charge of the Royal Navy forces in the Narvik area, received a message from Norway stating that Kattegat had been intercepted and sunk 3 nautical miles (5.56 km) off shore.[9]

Kattegat was later salvaged by the Norwegian military, with 1,400 tons of diesel and 207 barrels of grease unloaded at Svolvær. On 15 May, before Kattegat was ready to sail to Tromsø, she was bombed and damaged by a German aircraft. As the damaged ship still held 5,000 tons of oil, the local fishing boat fleet helped themselves to the cargo until the Germans arrived to retake the ship after the capitulation of mainland Norway in June.[21] The short time Kattegat was in Norwegian hands she served under the name MT Bodø.[7]

The next task for Nordkapp after she had dealt with Kattegatt came on 13 April, when she was ordered to go to Brønnøysund. A German Heinkel He 115 seaplane had landed there after running out of fuel and been seized by the local police, who had taken the four German airmen into custody. The aircraft was captured intact with a full bomb load and was later flown to Tromsø by Royal Norwegian Navy Air Service lieutenant Sivertsen and pressed into Norwegian service.[22]

From 16 to 22 April Nordkapp was deployed with a Royal Navy squadron of 14 warships and two troopships that had arrived at Sjonafjord north of Sandnessjøen. As the force split up and some of the destroyers sailed south, Nordkapp followed the main force north. During the time she followed the British vessels, the force was subjected to several German air attacks without the Norwegian ship suffering any damage.[22]

After leaving the British task force, Nordkapp spent most of her time until late May patrolling and guarding a British mine field in the Andfjord in northern Nordland / southern Troms.

At 24 May she called at Bodø, and by 30 May the evacuation of 4,000 British Army troops from the Bodø region began. By that time Bodø had been heavily bombed by the Luftwaffe over several days, and German troops was observed advancing towards Røsvik north-east of Bodø. On 3 June Nordkapp was despatched together with the 463-ton British-operated Q-ship Ranen[23] to the Leirfjord to try to stop the advance of the enemy by sea. The two ships bombarded German forces in the area before splitting up and heading north, Nordkapp sailing to Svolvær.[22]

On 7 June 1940 Nordkapp arrived at Svolvær and received the order that had been given by the Norwegian High Command to evacuate all operational naval vessels to allied ports. While most of the thirteen navy ships that escaped the capitulation of mainland Norway started their journeys that day, Nordkapp remained until the early hours of the next day in order to give refugees and volunteers more time to gather for the voyage to the United Kingdom. According to Lieutenant Commander Seip's orders, his ship's first destination abroad was to be the Faroe Islands.[24]

In the evening of 7 June German aircraft bombed and destroyed an oil tank facility in the town. At around 0200hrs, before Nordkapp was ready to sail west and start five years of service in exile, two ships arrived at Svolvær and started destroying the remaining oil tanks with artillery fire. Assuming the ships to be German the second in command of Nordkapp, Ensign Andersen, who was in command of the ship as Lieutenant Commander Seip was in a conference on land at the time, sailed out and attacked the two unknown ships. As he opened up on the two ships with his single cannon, they quickly returned fire and a 45-minute artillery duel ensued. Neither side managed to hit their adversary during the fight, and eventually the two sides discovered each other's true identity. The ships Nordkapp had been battling for three-quarters of an hour were Ranen and the 655-ton Royal Navy ASW trawler Northern Gem.[25] Ranen had been bombarding German positions together with Nordkapp just four days previously.[24]

After the nearly fatal friendly fire incident, Nordkapp returned to Svolvær and took on board volunteers before leaving port at 0300hrs on 8 June.[26] The passengers included 19 Royal Norwegian Navy personnel, many of whom were crew members of vessels sunk in the preceding two months.[27]

On 9 June Nordkapp joined the British evacuation convoy. During the journey west the ships were attacked by German bombers but avoided suffering any damage.[28]

After four days at sea Nordkapp reached Tórshavn on the Faroe Islands on 12 June,[4] resupplying before continuing on to the United Kingdom.

After arrival at Rosyth in Scotland on 18 June 1940 Nordkapp was rebuilt and rearmed[3] and was declared operational on 14 September 1940.[2] She was posted to Iceland from 21 September 1940.[4] On Iceland she served as a patrol vessel until 9 September 1943 when she was transferred to Shetland in order to support the Shetland bus operations. At Shetland she operated from 22 September 1943[2] together with the RNoN patrol vessels Horten, Molde, Narvik and Risør.[29]

Between D-day and 18 June 1944 Nordkapp took part in Operation Neptune, the naval part of the invasion of Normandy. On 6 June she escorted a convoy of transports from Southend-on-Sea on the Eastern coast of the UK to the British invasion beaches and thereafter escorted ships along the coast of Normandy.[30] The main threat from which she protected allied shipping was that of German E-boat and U-boat attacks.[31]

On 11 September 1944 she sailed from Portland to Aberdeen for maintenance and stayed there until 15 December 1944 when she was again transferred,[32] this time to guard duties at the Home Fleet's main base at Scapa Flow, a role she would continue until 1 January 1945. Thereafter she moved to Lerwick, Shetland where she was based until VE day.[2]