U.S.S. Cairo

U.S.S. Cairo (HMO0Y)

Location: Vicksburg, MS 39183 Warren County
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Country: United States of America
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N 32° 22.537', W 90° 52.003'

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Engine and Boilers, 1862

— National Historic Mechanical Engineering Landmark —

The Cairo is the sole survivor of the fleet of river gunboats built by the union during the Civil War with the object of controlling the lower Mississippi River. Designed by Samuel Pook and built by James B. Eads, the 175-foot ironclad vessel had 13 guns.

The propulsion system is the only known early example of the widely used "Western Rivers" steamboat engine, characterized by multiple fire-tube boilers with shared steam and mud drums and a two-cylinder non-condensing engine having a small bore, long stroke and poppet valves. This engine was designed by A.T. Merritt. With a 22-inch bore and 6-foot stroke, it developed about 600 horsepower and drove a sheltered paddlewheel of 22-foot diameter and 15-foot width.

The American Society of Mechanical Engineers - 1990
HM NumberHMO0Y
Year Placed1990
Placed ByThe American Society of Mechanical Engineers
Marker ConditionNo reports yet
Date Added Tuesday, September 23rd, 2014 at 10:46pm PDT -07:00
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Locationbig map
UTM (WGS84 Datum)15S E 700694 N 3584072
Decimal Degrees32.37561667, -90.86671667
Degrees and Decimal MinutesN 32° 22.537', W 90° 52.003'
Degrees, Minutes and Seconds32° 22' 32.22" N, 90° 52' 0.18" W
Driving DirectionsGoogle Maps
Area Code(s)601
Closest Postal AddressAt or near 1137 Cairo Museum Cir, Vicksburg MS 39183, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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