If we are to believe many science fiction movies, one day throngs of people wearing skin-tight silver spandex jumpsuits will be riding around on hovercraft. Hovercraft haven’t really taken the world by storm, but [Fitim-Halimi] built his own model version and shows you how he did it. You can see the little craft moving in the video below.
In theory, a hovercraft is pretty simple, but in practice they are not as easy as they look. For one thing, you need a lot of air to fill the plenum chamber to get lift. That’s usually a noisy operation. The solution? In this case, a hairdryer gave up its motor for the cause. In addition, once floating on a near-frictionless cushion of air, you have to actually move without contacting the ground. Like many real hovercraft, this design uses another fan to push it along. You can see in the video that the designer uses Jedi hand motions to control the vehicle.
Continue reading “Foamboard Makes For A Light Hovercraft”
Have a habit of hitting the bottle before getting into the cockpit? Find that your mind wanders mid-flight? Lack the hand-eye coordination to keep that RC creation of yours in the air? Worry not, you can build this flyer and crash it with impunity.
[HammyDude] built the RC aircraft out of laminated foam board. He’s had it for years and it’s survived multiple crashes. You can see the one real injury suffered, a snapped fuselage at the leading edge of the wings. He repaired it with popsicle sticks and it’s been going strong ever since.
In addition to the wooden reinforcements he’s covered the fuselage with fibrous packing tape (you know, the stuff with the strings running in it). There’s also a carbon fiber tube at the leading edge of each wing. It’s light, strong, and robust (with the exception of the propeller of which he’s broken about 10).
Check out the video after the break for an explanation of the aircraft, list of materials, and HD images of the patterns you need to make them yourself. The only thing you won’t see is flight footage.
Continue reading “Eight-dollar Airplane For Really Bad Pilots”