Model airplane sparking its way through the launcher’s channel. (Credit: Tom Stanton, YouTube) For [Tom]’s design, permanent magnets are used along both sides of the channel in an alternating ...

A year ago [Ramy RC] set out on a momentous challenge: to build a 1:21 scale Airbus ... the propulsive power that lift this enormous model airplane into the skies, which is the only part where ...