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Re: [PSUBS-MAILIST] Navigation

Naval subs rely primarily on inertial navigation underwater, updated from GPS when they come up to periscope depth and can raise an antenna above the surface.
For close quarters maneuvering, audio beacons or transponders are sometimes used, either planted on the bottom or buoyed at various depths. 

Marc

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On 2/13/2011 2:43 AM, Recon1st@aol.com wrote:

Jim I think navigation would be a good topic for this
group to discuss. I for one am at a loss for a solution.
I so like my gps system on my surface support boat I want
something decent under water.
How does the military do it? Lots of money I am sure
but seems something better than a compass could be
done.
I am leaning towards a tracking beacon on the sub and
get nav directions from support boat.
Dean
In a message dated 2/12/2011 11:42:17 A.M. Central Standard Time,
kocpnt@tds.net writes:

    Hi All,
    I am beginning rebuilding Bionic Guppies electronics/electrical
    systems. I am planning on again using an aircraft directional gyro
    for navigation.
    Before I go down this road does anyone have a better/different idea?
    Also, Dan Lance, I believe that you were quite pleased with OTS
    communication system.
    Can you confirm this, and if so provide contact info for a good
    supplier.
    Best Regards,
    Jim K




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