I imagine there's so many cells that by the time you finish checking the last ones, it's time to go back and check the first again.Is that a wrench? Kind of looks like a turkey baster but it's hard to tell.
Imagine having to check the water levels in that thing.
I have a golf cart with six 8volt batteries.. That's 24 caps to remove, fill, and replace.. it doesn't take all afternoon, but it's not a 5 minute job either.I imagine there's so many cells that by the time you finish checking the last ones, it's time to go back and check the first again.
I have a golf cart with six 8volt batteries.. That's 24 caps to remove, fill, and replace.. it doesn't take all afternoon, but it's not a 5 minute job either.
I can't imagine a submarine..
RT has an interesting view on Israeli nuke missile armed submarines and projection of their power.When I still had FLA batteries in my golf cart I used an automatic watering system which made it about a 5 minute job. Some people claim the system creates problems but mine worked fine and I never had any issues with it.
Now I have lithium cells and watering is a distant memory.
That is probably exact reason 1 why USA sub captain reported never dived his submarine in WW2. Wish could find that story now.It's almost comical thinking about our design requirements and complaints versus theirs too. "Our batteries could be cold, subject to vibration in my trailer with bad ventilation, and potentially have camping equipment dropped on them, and we live 50 miles from the nearest solar supplier" vs "40° crash dives, torpedoes, depth charges, 0 ventilation under hundreds of feet of water, with months between servicing, and very few spare parts available.
In one, a mistake could burn your house down, the other could trap dozens of men underwater to suffocate or burn to death. Ooph.
2 x half speed and 2 x 3/4 speed doesn't make sense..Apparently they controlled speed by changing the battery configuration (voltage) and number of motors ran. I guess motor controllers weren't a thing back then. It's a pretty clever way to do it though.
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On locomotives we did the same - counter back emf effects to the dc traction motors. I didn’t look it up but were the sub motors dc brushed? Thinking about it bet they were.Apparently they controlled speed by changing the battery configuration (voltage) and number of motors ran. I guess motor controllers weren't a thing back then. It's a pretty clever way to do it though.
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ac motor controls have only been around for a short period
More efficient propeller.. way more efficient, like >30% on a boat. Wind turbines, drones, boats, shipping, house fans.. the list is endless.Wind turbine ?
basically for “high tractive freight diesel power” new…. But yes we did have ac motor controls on several things like blowers and fans… but don’t think so for ww2. Never really looked back at it. I would figure the dc motors in a sub are on gear pinions to the screws.Not sure what you mean by a "short period" because a company I worked for was making thyristor based inverter motor controls for locomotive applications back in the 1960s.