DUTCH SUBMARINE SINKS GERMAN U-BOAT IN THE MEDITERRANEAN. 28 NOVEMBER 1941, GIBRALTAR.
There were 12 survivors including Kapitänleutnant Schreiber. They were taken prisoner by the Dutch and landed at Gibralter 8 hours later.
The last war patrol of Dutch submarine Hr.Ms O-21 in the Mediterranean would be her most successful.
Shortly after midnight on the 28th, the officer of the guard, 1st Lieutenetant A.T. Elbers, observed a silhouette of a submarine from the bridge of the surfacing O-21. The O-21 was only a few hours away from its base at that time. Immediately the Dutch were on high alarm and two tubes were prepared. Suddenly the O-21 noticed a signal sent from the unknown submarine. The British signaller aboard Hr.Ms O-21 immediately recognized the signals as German. Lieutenant Commander Van Dulm later wrote: “Her doubts about our identity sealed her fate".
"Immediately we started the attack and launched the torpedo from the starboard tube. We clearly saw how the bubbles stood out in the calm sea. But not only we had seen this threatening line, also the enemy. He reacted immediately by turning away. I imagined he would. I now launched the second torpedo on the rapidly growing silhouette. Although the first torpedo missed its target, the second one didn't! "
To collect evidence for the sinking of the U-boat, Hr. Ms O-21 hurried to the place where the U-boat had sunk. Here, 12 survivors were found swimming, and all were picked up. Among the drowning men was the U-boat commander, Kapitänleutnant G. Schreiber. “Immediately after the last survivor was hoisted on board, we had refitted the diesel engines and continued our journey back to Gibraltar". It was then ten minutes past one; the entire action, with the rescue of the drowning people, had only delayed us for half an hour, "reported van Dulm reported. Gibraltar was informed by radio of the success. More than eight hours after the U-boat was sunk, Hr. Ms O-21 sailed into Gibraltar's harbour.
The crew members of the British warships present for the occasion on deck enthusiastically welcomed the passing Dutch submarine. Admiral J. Somerville, commander of the British squadron in Gibraltar personally came to congratulate him aboard Hr. Ms O-21.
The U-boat turned out to be U-95, a very modern type VIIC submarine of 769 tons. The German commander had doubts about the sighting of the Dutch submarine. The boat was clearly on its way to Gibraltar but the silhouette did not look like a British submarine but more like a U-boat. That is why he had signalled to the unknown submarine on which the crew of Hr. Ms O-21 responded very quickly.
During the entire Second World War, only 14 U-boats were sunk by Allied submarines. The positive result of the direct confrontation between the Dutch submarine and U-95 for the O-21 may therefore be seen as an exceptionally large achievement. One of the other remaining 13 U-boats that were sunk by allied submarines was U-168. She was sunk by Hr. Ms Zwaardvisch (Swordfish) after she was hit by three torpedoes of which only one exploded.