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josephw71
Post subject: What are these?Posted: October 24th, 2010, 11:16 pm
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Not being a nautical expert, I've wondered what these are. I know the first one is an aerial, but it has a very distinct design, so what's it for, and lots of ships have something like this by the stern, what are these for?

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erik_t
Post subject: Re: What are these?Posted: October 25th, 2010, 12:16 am
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Location: Midwest US
The former is a discage antenna of the type usually associated with the USN Naval Tactical Data System. The type is omnidirectional and able to transmit and receive over a wide HF band. See: http://www.globalsecurity.org/military/ ... 92_ch2.pdf and http://www.kh6bb.org/photos2.html

The latter is a guard for the outer screw, so that it is not scrunched in port. An example is visible here: http://farm4.static.flickr.com/3662/355 ... a261ba.jpg


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josephw71
Post subject: Re: What are these?Posted: October 25th, 2010, 12:44 am
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Ah, thank you.

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ezgo394
Post subject: Re: What are these?Posted: October 25th, 2010, 3:47 am
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Ahh, Ive been wondering the same thing about those prop guards.

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