A Peek Inside the Enjomor Whippet

Enjomor Whippet cylinder and valves

A peek inside the Enjomor Whippet was just too tempting, especially with a set of Wera Allen Keys laying nearby. The head of this Whippet engine is interesting as it is constructed as two layers. The combustion chamber has a heart shape cavity that links the sidevalves to the cylinder. The video shows us removing … Read more

Stefan Gasparin Gallery

Gasparin V12

We had to have a Stefan Gasparin gallery page as he is for me the number one person in the design and manufacture of CO2 engines. These are engines that use compressed CO2 as their energy source and primarily designed for indoor free-flight model aircraft. Stefan has been making CO2 motors since 1972, but started … Read more

Model Engine Transistor Ignition

TIM-6 Transistor Ignition

For a while I have been looking around at model engine transistor ignition systems. Wondering what to buy or even just build from a circuit design. The I saw the kit that is available from jerry-howell.com (this is actually: model-engine-plans.com). The ignition systems and parts are actually on their sister site: model-engine-ignition.com. I bought a … Read more

Sketches to Models to CAD

five cylinder rotary engine

I often work backwards, going from Sketches to Models to CAD. However, it works for me as it allows me to create something in the workshop. Sometimes I think this works really well and I think a good example is the five cylinder rotary engine. The only sketch I have of the engine before making … Read more