Electromechanical Designs
A much more broad field, with a variety of mechanisms of action. These designs are often built as experiments at the amateur hobbyist level, but with the exception of the tricopter have not yet attained the popularity of the pure electronic designs.
Read more about this topic: Octocopter
Famous quotes containing the word designs:
“His designs were strictly honourable, as the phrase is; that is, to rob a lady of her fortune by way of marriage.”
—Henry Fielding (1707–1754)