No castings are used in this engine design, which features curved spokes in the twin flywheels. This single-acting, single-cylinder stationary engine has a bore of .625″ and a stroke of 1.0″. Rudy also took some extra time on this model engine to craft a base that appears to be made from brick. Detailed plans for this engine can be found in the first volume of The Shop Wisdom of Rudy Kouhoupt. Watch this engine running in the video below.

One of the first large donations to the Miniature Engineering Craftsmanship Museum was the collection of famed model engine builder Rudy Kouhoupt. Rudy’s niece, Susan Alvaro, was kind enough to donate his entire lifetime engine collection for display at the grand opening of the museum in 2006. After retiring as a chemist, Rudy had a second career building engines and writing magazine articles documenting the process. Many people have built his models, but we have the honor of displaying all of his original prototypes. Rudy’s collection includes scale model engines, locomotives, tractors and more. Additionally, thirteen of Rudy’s model steam engines are hooked up to run on compressed air to demonstrate their function. 

Another look at the larger horizontal steam engine.

Exhibit added: May 20, 2006 - Last modified: June 4, 2024

Presented by The Joe Martin Foundation for Exceptional Craftsmanship