This morning as I set here looking at my array (5) of stationary engines, I am thinking "out of the box". I power my engines with my air compressor, not a boiler. This works fine to display stationary engines, but doesnt allow for much mobility. Here is my plan---Make either a boat powered by a simple oscillating engine, or a train, a tractor, or any kind of mobile machine with a small steam engine on it. Make up a small stationary mast about 2 foot tall, with a flexible airline running up the center, and a small rotary union at the top. A metal tube of light hollow aluminum runs out to the vehicle and is attached to the vehicle, with a short length of flexible line from the end of the hollow tube to the engine on the vehicle. The air is supplied through the mast, and rotary ubion, out the hollow metal tube to the engine. The vehicle can then propel itself around the circle described by the rotating tube. A 3 foot long tube would allow the vehicle to travel about 9 1/2 feet with every full revolution at the tower.
