[Raptor1]

Originally Posted by Stealth Hunter

1) U-134

2) Both were torpedoed and sunk by enemy submarines (and both sank a day after being torpedoed).

3) All were sunk by a decoy trawler that was hauling an enemy submarine along behind it.

4) UB-1 in 1915.

5) Sonar used to measure depth was introduced to all u-boats in the Kriegsmarine.

6) 133 days, a feat done by 2nd Steward Poon Lim (born Hone Kong) after his ship, the S.S. Ben Lomond, was torpedoed and sunk by a u-boat 750 miles from the Azores on November 23, 1942, at 11:45 AM. He was picked up by a Brazilian fishing vessel on April 5, 1943.