Abstract: The invention provides an air activated displacement motor functional in a liquid medium. A plurality of air collectors are rotatably attached to a continuous support chain which rotates a power output shaft. Air is supplied into each air collector either by natural means or by an air compressor. The air is introduced into a receiver chamber which collects and distributes air through a series of air funnels located on a rotating conveyor belt. The conveyor belt is synchronized to rotate at the same speed as the support chain thereby aligning each air collector with an air funnel. The natural buoyancy of the air causes the air collectors to rise in the water pulling the support chain along with them. The continuous support chain is suspended in a vertically inclined L-shaped framework and moves along a right triangular path. The air filled air collectors move up vertically along the stem of the L.