Vicksburg National Military Park in Warren County, Mississippi — The American South (East South Central)
U.S.S. Cairo Engine and Boilers
National Historic Mechanical Engineering Landmark
— 1862 —
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 noncondensing 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 800 horsepower and drove a sheltered paddlewheel of 22-foot diameter and 15-foor width.
Erected 1990 by the American Society of Mechanical Engineers.
Topics. This historical marker is listed in these topic lists: Landmarks • Waterways & Vessels.
Location. 32° 22.551′ N, 90° 51.993′ W. Marker is in Vicksburg National Military Park, Mississippi, in Warren County. Marker Touch for map. Marker is in this post office area: Vicksburg MS 39183, United States of America. Touch for directions.
Other nearby markers. At least 8 other markers are within walking distance of this marker. Full Steam Ahead! (here, next to this marker); Wheelhouse - USS Cairo (here, next to this marker); The Skylights (here, next to this marker); Chimneys - USS Cairo (a few steps from this marker); The USS Cairo (a few steps from this marker); Pilothouse - USS Cairo (a few steps from this marker); A Crew of Immigrants (a few steps from this marker); A Ton an Hour - USS Cairo (a few steps from this marker). Touch for a list and map of all markers in Vicksburg National Military Park.
Credits. This page was last revised on November 1, 2017. It was originally submitted on November 1, 2017, by Mark Hilton of Montgomery, Alabama. This page has been viewed 285 times since then. Photos: 1, 2, 3. submitted on November 1, 2017, by Mark Hilton of Montgomery, Alabama.