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It glides along almost silently at a depth of over 200 meters - the German Navy's submarine U33. Also on board: Eric. He sets out to sea with 23 crew members, locked in a very small space and with no contact with the outside world. Everyone is highly trained and educated. Because a mistake far below the surface of the water is unforgivable. If something goes wrong down here, the men are completely on their own. What is it like to work and live in a submarine? ???? And what happens in an emergency? #uboot #u33 #purplus Post from 2012. 00:00 Let's go! The crew sets sail 01:17 The command center: How do you steer a submarine? 05:36 Sleeping, eating, using the toilet - this is how the crew lives 10:15 Fuel cell: How the submarine generates energy 12:25 Emergency in a submarine - how does the crew save themselves? Eric experiences crazy action not only under water, but also in the air - for example in the police helicopter. Will Eric manage to fly a helicopter? https://www.zdf.de/kinder/purplus/hub... ???? Subscribe? Just click here: @purplus ???? PUR+ in the ZDF media library: https://www.zdf.de/kinder/purplus?at_... ???? Netiquette: https://www.zdf.de/kinder/purplus/net...