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:
“I have nothing against the Queen of England. Even in my heart I never resented her for not being Jackie Kennedy. She is, to my mind, a very gallant lady, victimized by whoever it is who designs the tops of her uniforms.”
—Leonard Cohen (b. 1934)