Gentlemen, Regarding the FuMo-30 antennea… in case of alarm, was the antennea manaully or mechanically lowered, or was it removed by hand by the four Bridge Watch crewmen and stowed somewhere inside the boat or in an outer hull compartment on the Bridge, Wintergarden, or Top Deck (or is it Weather Deck)? Thank you in advance. Regards, Miami-Lou
Forum: Technology and Operations

Hello everyone, I promised myself not to post another question until I read the entire Tech/Ops Forum from start to finish. It has taken me two months and I have taken 32 pages of notes. I found answers to 95% of the questions I had in my head: maintaining trim, small arms, food, toilet usage, Kalipatronen vs. Draeger Tauchretter, and all the others topics that appear repeatedly. My reading age
Forum: Technology and Operations

Wow! So it was not a valve, but a cover. It seems to me that would be tough to replace with water rushing in, unless the sea strainer cover was attached to the pipe like the lid on a mason jar (it's what comes to mind). It could have been a fatal endeavor had sea water mixed with battery acid producing chlorine gas. But perhaps the water did not rise above the bottom border of the control ro
Forum: Technology and Operations

Hello everyone, I am new to this website and forum. I remember my fascination with U-boats as far back as the 6th grade in the early 70's. I have read some material throughout the years and tonight I discovered this wonderful website. Let me cut to the question that has always been on my mind... the sea strainer valve closed by two of Captain Gallery's boarding party (Zenon Lukosius a
Forum: Technology and Operations