New design of of motorboat with propellor to push it across the water. Title reads: "... here's the All-British Hydro-glider, first of air-screw-propelled Fleet of passenger and mail carrying craft for rivers and canals." Small boat - the 'Solent Hydroglider' - as mechanic starts engine. The boats engine turns a propellor in the back which pushes the boat through the air. Various shots of the boat speeding about on the water. Odd looking invention. Close shot through propellor on back of boat. More shots of man trying to start engine. The hydroglider slips past an old sailing vessel.