A term applied to plating fitted to form a shape similar to a frustum of a cone around the ends of shaft tubes and strut barrels to prevent an abrupt change in the streamlines. Also applied to any casting or plating fitted to the hull of a vessel for the purpose of preserving a smooth flow of water.
Igama elisetyenziswa kulwaluko olufakelwe ukudala isimo esibufana ne-"frustum" yembumbulu engqonge iityhubhu zomphini kunye nemijelo yentsika ukunqanda utshintsho oluqubulisekileyo kwimisinga ecutheneyo. Naxa lufakelwe nakuyiphi na into exonxwe ngesinyithi okanye ulwaluko olufakelwe kwisiqu senqanawe ngezizathu ukukhusela ukuqukuqela okusulungekileyo.