Hull

Semi- Displacement / Bow

*	4	Geschwindigkeitssteigerung eines Hecktrawlers durch Bugwulst Speed increase of a stern trawler by bulbous bow W.Henschke,K.Lau,H.Missbach Schiffbautechnik February 1963
*	5	Waterline Bulb on high speed boats Ata Nutku Naval Engineers Journal December 1965