Just as with the automotive industry, there are a variety of aircraft engines designed to run on various types of fuels. Even electric planes are something we're likely to see more of in the future.

Which model airplane kit is best? Model airplane kits come in a vast variety of styles and detailed constructions. They aren’t just a few wooden planks that click together and barely float anymore.

A model of a Lockheed Constellation built from a non-standard scales nearly 60 years old. Back then, most models were designed to fit a very specific box size. [Courtesy: Terry Moore] Scale modeling, ...