The Aero-Velocipede uses a steam-engine powered propeller to provide forward thrust, allowing speeds and range never before achieved.
Update: the bicycle is a 1930's Cleveland Welding Company Road Master. I bolted on a ten speed gearing system. Amazingly, no alteration at all was required, everything fit perfectly. Let's hear it for standards/tradition, given that it was a modern rather inexpensive (Japanese?) heavily used ten-speed I bought for ten dollars from the legendary Faber's Cyclery in San Jose. I quote a 2007 blog post: "The leaning tower of rusted Schwinns is closing up. The longest running bike shop in the US of A. AND, what a great start it had. Blacksmith, Saloon w/brothel, then bike shop!" I note that there's now a for sale sign on the property. A fabulous prize is offered for anyone who can correctly identify all the components of the Aero-Velocipede, images to be posted soon. Thanks to everyone for their interest and suggestions! I'll be happy to answer (or evade) any questions.