Apparatus is disclosed for the production of a levitational wind comprising a flight chamber defining a levitation area, a blower unit including a plurality of blowers connected in parallel so as to provide their combined flow to the air inlet of the flight chamber, each of the blowers being disposed outside of the levitation area, with the blower unit having an axis essentially perpendicular to the vertical axis of the flight chamber, and an air coupler interposed between the air inlet of the flight chamber and the blower unit, the air coupler including a substantially 90.degree. bend between the blower unit and the air inlet of the flight chamber, and wherein each of the plurality of blowers includes a delivery element for removable connection to the air coupler.