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Originally Posted by jimbuna
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Originally Posted by _Seth_
IIRC, in a scene i "Das Boot" (at the beginning, the LI told the Kaleun that one of the screws had been replaced, something that made the Kaleun very happy, since they "got rid of that whining noise.." (Please correct me if this is wrong, mates). Considering this, i could only imagine what importance the sounds of the screws must have had.  |
Your quite correct mate. A screw/propellor blade with damage to one of it's blades could quite possibly create a cavitational noise.  |
Could such failures be fixed during the patrol (divers, maybe?), or did they always have to go to a port with repair facilities? I know that during such repairs in Norway in WWII, German uboats used to flood their forward tanks. Together with the help af a small crane, the repair crew could lift the stern above water (Not much, but enough) to let a small boat get in under the screws to fix them. This saved a lot of time, since the boats didnt have to go to ports that had dry docks.
I can imagine the terror if a uboat had to dive to escape enemy DD's, knowing it had a broken screw that was making noise...
*"Yes, men, we are diving to get away from them..But they will find us anyway.."*
