Helm

helmstok

(tiller (or, in a large ship, the wheel) which is used to control the rudder of a marine vessel; entire steering apparatus of a vessel)

roer

(position of control or leadership)

roerganger

(member of a vessel’s crew in charge of steering the vessel — see also helmsman, helmswoman)

stuurman

(member of a vessel’s crew in charge of steering the vessel — see also helmsman, helmswoman)