Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Sounds like a very possible winner. I have actually thought of innertubes for that purpose, but have never tried it out, so it is great to get some confirmation of concept, and to know that experiments are currently underway. I have very few pulleys that can make use of a flat belt, but have often thought of making a few more, as they are the traditional power transfer medium!