I estimate that I'm about halfway through my first winter in Buffalo. And in this weather, I'm always on the lookout for RC gadgets that can thrive in the snow. My latest project began life as a toy-grade RC vehicle with a dubious reputation, but a few simple modifications turned it into a super snow machine. More-extensive tweaking made it even better!
The Terrain Twister is an RC toy that was previously sold by Mattel under both the Hot Wheels and Tyco RC labels. It's discontinued now, but new and used examples are readily available on the internet. What caught my attention is the Twister's really unique screw propulsion system. Rather than wheels or tank treads, this vehicle is motivated by a pair of counter-rotating cylindrical pontoons that have external threads like a screw.
There have been a few examples of screw-propelled vehicles throughout history. The buoyancy of the rotating pontoons allows them to move across swampy or muddy terrain that would cause wheeled or tracked vehicles to get hopelessly stuck. Screw-propelled vehicles also excel in the snow.
Online reviews of the Terrain Twister are all over the map. Some people love them, and lots of people despise them. A cursory analysis hinted that many of the haters had tried using the Terrain Twister on surfaces that it wasn't meant for. Spoiler: a screw-propelled toy is NOT going to work well on your concrete driveway or the tile floor of your kitchen. I eagerly pulled the trigger on a used unit I found on eBay…a whopping $5 investment (+$9 for shipping)!