[R-390] OT: Submarine navigation

[Raymond Cote]

The conning officer would call out "mark this bearing " and the quartermaster of the watch ( sometimes me) would read it off the gyro repeater so he did not have to look down. For fire control, the right thumb hit the red button and the fire control console automagically displayed instantaneous headings.
Long ago 

> On Sep 9, 2014, at 16:08, "Joe Foley via R-390" <r-390 at mailman.qth.net> wrote:
> 
> Mostly a surface vessel.  Periscope MAY have had a compass ring, too.
> 
> Joe
> 
> 
> 
> On Tuesday, September 9, 2014 5:05 PM, Bob Camp <kb8tq at n1k.org> wrote:
> 
> 
> 
> Hi
> 
> In answer to the question - yes a compass works just fine underwater on a sub. 
> 
> Bob
> 
>> On Sep 9, 2014, at 8:40 AM, Blair Batty <blairbatty at gmail.com> wrote:
>> 
>> Sorry for the off topic, but I know there are lots of ex-military types
>> here; I don't know where else to ask.
>> 
>> How did a submarine navigate during WW2? Did a compass work underwater
>> inside an iron tube? Did they just look thru the periscope to see where
>> they were going? Dead reckoning? Or were they mostly a surface vessel.
>> 
>> I suppose today they have all sorts of magic, electronic gps devices, so
>> they can travel for months without every surfacing. But what was available,
>> say in the 60's-70's?
>> 
>> Sincerely
>> /b
>> 
>> Questions inspired by a cold war submarine movie last night...
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