Battleship Wisconsin: Quad 40 Mount

Battleship Wisconsin: Quad 40 Mount (HMNI3)

Location: Norfolk, VA 23510
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Country: United States of America
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N 36° 50.909', W 76° 17.65'

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A primary antiaircraft weapon used by Allied forces during the violent air and sea battles of World War II was the Mark 2 quadruple mounted 40 millimeter gun mount, or "Quad 40." Each individual Quad 40 gun was capable of firing shells weighting two pounds for a sustained rate of 160 rounds per minute-reaching ranges exceeding five nautical miles and almost four nautical miles in altitude. Weighing 24,900 pounds per mount, battleship Wisconsin once bristled with antiaircraft guns, including twenty Quad 40 emplacements for a total of eighty individual 40 millimeter gun barrels.
U.S. Navy battleships like Wisconsin were primarily used as heavily armored refueling and antiaircraft platforms supporting the fast-carrier task groups of the Pacific Fleet during World War Two. After 1942, antiaircraft gun mounts like the Quad 40 were added in response to the ferocious Imperial Japanese air and suicidal Kamikaze attacks of the Pacific campaign. Wisconsin was originally designed to accommodate a standard ship's complement of fewer than 1,550. With the additional antiaircraft emplacements, another 1,925 sailors were required to serve the guns. As a result, Wisconsin was quite cramped during the war with over 3,000 bluejackets living in every nook and cranny aboard ship.
HM NumberHMNI3
Placed ByCity of Norfolk
Marker ConditionNo reports yet
Date Added Friday, October 17th, 2014 at 12:42pm PDT -07:00
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Locationbig map
UTM (WGS84 Datum)18S E 384619 N 4078845
Decimal Degrees36.84848333, -76.29416667
Degrees and Decimal MinutesN 36° 50.909', W 76° 17.65'
Degrees, Minutes and Seconds36° 50' 54.54" N, 76° 17' 39.00" W
Driving DirectionsGoogle Maps
Area Code(s)757
Closest Postal AddressAt or near 401 Elizabeth River Trail, Norfolk VA 23510, US
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