Lawn mower

A lawn mower of the type which when operative is supported on a cushion of air comprising a motor driven blade rotatable about a vertical axis, a fan rotatable about said vertical axis, and a hood enclosing said blade and fan having at least one inlet for air forming the cushion of air, and an outlet opening for grass cut by said blade, said hood having a generally vertical wall portion which substantially surrounds said blade and is curved in a horizontal plane and extends adjacent to the circular path of the blade tips over an arc of at least 180.degree., said vertical wall portion being arranged relative to the outlet opening whereby the cut grass is ejected through said outlet opening, said hood having an outwardly directed peripheral lip extending in a generally horizontal direction from the lower extremity of said vertical wall portion, the lowest part of said peripheral lip lying in a horizontal plane which is in a plane below said lower extremity, said hood having a substantially plane horizontal surface between said lowest part of the peripheral lip and said lower extremity of said vertical wall portion, said surface being spaced in a plane above said horizontal plane.