The protrusion of the paddle-boxes enables them to fit in alongside ships with overhang, such as aircraft carriers.
Ukuvela ngaphandle kweebhokisi zokubhexa kwenza ukuba zingene kumacala enqanawa nendawo kumphambili wenqanawa ebonisa apho amanzi ama khona enqanaweni njengezithwali nqwelo-ntaka.