Are you interested in learning about helicopters? Helicopter enthusiast John Salt describes the five main types of radio controlled helicopters, and answers the most common helicopter newbie questions.
In this article by Fly Staff for Fly RC Magazine, they describe what conventional fuel systems and unflow fuel systems are. They also discuss the conventional tank theory, pressure differential, fuel mass, the unflow theory of operation, why it is important to check a valve, tips for having a successful fuel system, and how to tune for maximum performance.
The first mass produced model airplane engine was designed and built by 16-year old Bill Brown, Jr. His friend, Maxwell Bassett designed model aircraft to test the engines. In 1933, flying with a gas engine, Max won the Mulvihill, Cabin model Stout, and the Moffeft International Trophy because the rules did not yet stipulate the type of power.