Mounts for the Navy's 1.1 AA Guns
Item
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Title (Dublin Core)
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Mounts for the Navy's 1.1 AA Guns
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Article Title and/or Image Caption (Dublin Core)
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Mounts for the Navy's 1.1 AA Guns
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extracted text (Extract Text)
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ASSEMBLY-LINE methods
applied to the manufac-
ture of mounts for 1.1-inch
Navy rapid-fire antiaircraft
guns resulted in a saving of
about 6,400 man-hours of la-
bor and about $15,000 in cost
for each mount, it was an-
nounced recently on the com-
pletion of a Navy contract by
the Westinghouse Electric Ele-
vator Company.
Affectionately called the
“Chicago piano” by the Brit-
ish, the 1.1 multiple pom-pom
has served our Navy with dis-
tinction in every major en-
gagement since Pearl Harbor. Four water-
cooled barrels set in the H-shaped, 14,000-
pound mount are aimed by two gunners on
opposite sides and fired in almost simultane-
ous bursts by a trigger mechanism. Aiming
may be either manual or by hydraulic pow-
er. The mount will swing in a full circle.
Record-breaking production of the mounts
by the elevator builders called for precision
manufacturing to tolerances as small as
1/20 of the thickness of a sheet of news-
paper. Accuracy was assured by 4,800 in-
spections during the manufacturing process
~—about six for each of the principal parts.
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Language (Dublin Core)
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eng
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Date Issued (Dublin Core)
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1943-02
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pages (Bibliographic Ontology)
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79
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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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Matteo Ridolfi
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Marco Bortolami (editor)
Popular Science Monthly, v. 142, n. 2, 1943
