Recently I saw a video of a remote controlled boat powered by a miniature steam engine and was instantly hooked on the idea. The design is for heavy duty, however, with main bearings and other working parts larger than scale, and the engine will stand up well under hard, continuous runs at full working load, developing enough power to drive a quite large model boat, a small dynamo, an air fan, or other light equipment of Fractional-horsepower rating. Many thanks to Jan Ridders for his excellent design and amazing patience, Aussie Jim and Bogs for all their practical assistance and encouragement. FORTRAN programs are listed for both an isothermal second order design program and an adiabatic second order design program.
Jim and I are not the first to encounter difficulties with this engine as last year there was a thread on Model Engineer forum where two or three builders of this engine came up against identical problems. In AMA’s National Model Aviation Museum are books and magazines full of engine history and displays of many of the engines mentioned. Simple Engine: A simple vertical rotary valve engine from the 1930s, though castings are called for, but you could substitute CNC machined billet parts fairly easily.
Although popular through the 60s, McCoy never had a successful RC engine and eventually faded away. Imagine a small engine for your bicycle, canoe, or campside generator that is as quiet as a sewing machine. By 1910, Irish immigrant, James Lee Hicks, had modified and refined the single cylinder four-stroke gasoline engine for optimal reliability under marine conditions. An LTD Stirling engine is efficient enough to run from the waste heat that is discharged from other appliances or from the warmth of direct sunlight.
Also……observation of steam engines allowed early engineers to develop numerous scientific principles in such areas as statics, kinematics, thermodynamics and material science……these principles are still part of engineering education. I’m looking to spice things up and perhaps build something a little different than the set class plans. Many use easy-to-get materials (one engine uses a wood base, a wood main bearing and a coat-hanger wire crankshaft). Weiss sold only engine plans to the331; Louis Loutrel sold the assembled engines as well as kits containing the plans and castings.
A pointer is set to the TDC mark on the degree wheel and the engine is turned over and the cam adjusted so the first valve is fully open at 250°. I should also note that even if you did build a boiler this engine probably wouldn’t work well because many of it’s major components are wood. So I started by making some of the steam pipes, CNC’d the flanges, and silver soldered them. The modeling world was astounded by the performance of the Brown engine and everyone wanted one!
I had planned to angle the passages, rather than placing them at 90 degree angles, but realised that angled passages would impinge on bolt holes, so I have reverted to the original plans. Elmer Verberg’s Scotty: Elmer’s Scotty engine incorporates a Scotch Yoke mechanism for transferring linear motion to rotary instead of a traditional crankshaft. Can anyone help me purchase or obtain plans for a model V8 engine, this is for my own personal use in model boats. On Saturday, July 7, 2007, Duarte Cabral stopped by to help Tom and Joe confirm that all is well with the design and timing of the ignition.
Watch for the Foundation’s next building project and get your name on the list early in order to be a part of the build and have your name listed on the plaque by the finished engine. A 1941, Model Airplane News Engine Directory lists 50 manufacturers and 62 different engines ranging in size from097 cid through 1.53 cid. This fully functional miniature jet is not a toy and creates considerable thrust.