Helicopters come in all sorts of weird shapes and sizes. In the early days of mass-produced helicopters in the 1940s and 1950s, engineers experimented with strange designs and unique concepts, many of ...

Like cursed penguins, a whole barrage of helicopter designs has failed to make it. From advanced stealth helicopters that cost billions, to sleek gunships and vast flying cranes that proved too much, ...

Inventor and physicist Thomas Senkel created an Internet sensation with the October 2011 video of his maiden—and only—test flight of a spidery proof-of-concept 16-rotor helicopter dubbed Multicopter 1 ...