The classic “David Sling” is using rotational speed to launch heavy projectiles at considerable speed. This principle is picked up by the company “HyperV Technologies Corp.” – they made several launchers based in it. The next test device these guys want to build will fire a 1/4 pound projectile at 2,237 mph!
Of course The Slingshot Channel loves the project. But we also have our own take at it…This video shows the SlingaLaunch, a device that shoots out 25mm (1″) steel balls using rotational speed. The machine is powered by a drill and can even fire three steel balls at once.
The concept is scaleable – a much larger launcher could throw very heavy objects (shot put?) and even go full auto (by adding an ammo feeder.)