A model of a twin cylinder compound vertical condensing marine engine built by Thomas Klughammer. The engine has an air pump, a circulating pump and two feed pumps, driven by pump levers. It has a piston valve at the H.P. cylinder and a flat slide valve at the L.P. cylinder. The condenser has 83 brass tubes.

The H.P. cylinder bore is 1 _ ins (44.45 mm) and the L.P. cylinder is 3 ins (76.2 mm) by 2 ins stroke. A working pressure of 100 psi (6.9 bar) is assumed giving 500 as the maximum revolutions per minute. The output is about 2 horsepower. The circulating pump is double acting and forces water into the condenser tubes.

I bought the castings from Pat Spurlock who lives in Oregon, USA. His homepage address is www.steamlaunch.com.

If you would like to receive further information, don't hesitate to contact me at my email address which is thomas@klughammer.de.