Wing antenna, antenna, it doesn't really matter, unless you wish to speak of a certain one on the boat. And depending on what part of the country a guy came, it could be called an aerial too. Just depends on what they called it where he came from.
For the second question, do you have a pic, or link to one, it might help.
Sometimes enterprizing sailors would rig up things that only that particular boat had. Just depended on their skills and abilities to make things.
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A legislative act contrary to the Constitution is not law.
-John Marshall Chief Justice of the Supreme Court
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