Allen hover mowers are powered by specially designed Honda engines for strength, durability and most importantly the ability to work on difficult banks and slopes. The engine is connected to a lower impellor which draws in air through the top of the mower deck and forces it along the surface of the underside of the deck moving it in a circular motion. This allows the machine to hover just above the ground and also sucks the grass into an upright position to ensure a clean and even cut. In addition the circulating air stream allows each grass cutting to be re-cut many times before the air stream forces them back into the turf. The hover mower glides easily on a cushion of air, allowing movement in any direction, much quicker than conventional wheeled machines.