1. Chapter IV, Planing Craft;Savitsky;Naval Engineers Journal,1985
2. 4. Day, J.P. , and R.J. Haag , “Planing Boat Porpoising,” Thesis submitted to the Webb Institute of Naval Architecture, May 1952.
3. 5. Shoemaker, James M. , “Tank Tests of Flat and V-Bottom Planing Surfaces,” NACA-TN-509, Novembr 1934.