The anti-mine technology called "P. V." used on ships
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Title (Dublin Core)
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The anti-mine technology called "P. V." used on ships
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Article Title and/or Image Caption (Dublin Core)
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Title: Now You Know What a "P. V." Is
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extracted text (Extract Text)
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“WE ran into a nest of mines, but the P.V. saved us.”
Thus the young “gob” home from a foreign
cruise and spinning a yarn of the perils of floating mines-—
perils that will exist long after the armistice turns into a
permanent peace.
Asked what is a “P.V.,” he said, “Oh, that's what the
English call 'em. They catch mines"—and let it go
at that.
But now that the censorship has lifted, we can show you
. what a “P.V."”—a paravane —looks like, and tell you u little
about it, although the extraordinary performances of one
type of this machine, made for offensive work, must remain
a secret, for the time being.
One of these torpedo-shaped devices is swung out from
each side of the bow of ships steaming through mine-
infested waters. The airplane-like wings near the head
serve to keep the paravane out from the ship's side, while
the rudder-like contrivance at the stern, operated by an
automatic depth-regulating valve, controls the depth at
which the P.V. travels. This valve is the same sort that
controls the depth at which a torpedo travels.
The wire rope by which the paravane is attached to
the ship catches the mooring of the mine, and causes it to
travel out to the nose of the paravane, where a sharp cut-
ting instrument cuts the mine free, so that it floats to
the surface, is seen by the lookout, ard destroyed.
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Contributor (Dublin Core)
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International Film Service (Image copyright)
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Language (Dublin Core)
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eng
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Date Issued (Dublin Core)
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1919-03
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pages (Bibliographic Ontology)
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48
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Rights (Dublin Core)
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Public domain (Google digitized)
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Archived by (Dublin Core)
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Davide Donà
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Marco Bortolami (editor)
Popular Science Monthly, v. 94, n. 3, 1919
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