text: do hovercrafts really work? i have seen only one and it was at a science fair. it was pretty cool. they are in common use all over the world so i guess the answer has gotta be a resounding yes.  they are probably most common in smaller form as a recreational/racing vehicle, but much larger ones are capable of carrying hundreds of people & their cars/trucks. they are also used by the military as they are capable of navigating minefields.