Hovercraft or Hovercrafts?

Now, thats an often discussed subject and in fact we see it written see hovercraft, hovercrafts, hover craft and hover crafts! some overseas buyers even spell it ‘Hoovercraft’ but the only correct spelling is ‘hovercraft’ – whether its singular or plural. You may be talking about one small hovercraft or 10 large hovercraft but the word follows the same rule as the word ‘aircraft.’ in other words, you may have one aircraft or twelve aircraft, but you never have any aircrafts, air craft or air crafts!