1. Chaplin H. R. Theory of the Annular Nozzle in Proximity to the Ground. David Taylor Model Basin Aero Report 923, July 1957.
2. Barratt M. J. Unpublished Report. Hovercraft Development Ltd., 1962.
3. Cockerell C. S. Some possible future developments in Hovercraft Technique. University of Southampton and R.Ae.S. Joint Symposium on Hovercraft, Southampton, March 1963. Published in Air-Cushion Vehicles, Supplement to Flight International, May 1963.
4. The Hovercraft—A New Concept in Maritime Transport;Crewe;Trans. Roy. Inst. Nav. Arch.,1960