15m 7sLength

Copyright Disclaimer, Under Section 107 of the Copyright Act 1976, allowance is made for 'fair use' for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use. During WWII, the German Navy created the world's first stealth submarine, the U-480. A thin layer of rubber was added to it's skin to defeat the British sonar known as ASDIC. The sub went on 3 patrols, sinking 4 ships and shooting down an aircraft. In 1945 the sub was sunk and all hands were lost, except 1 who was left behind for training. During it's career, U-480 was never detected by Allied sonar.