centreboard in Dutch
centreboard in Dutch
zwaard
(British spelling, nautical) The adjustable keel on a small yacht or dinghy that acts, among other things, as ballast and to counteract the sideways force of the wind.
midzwaard
(British spelling, nautical) The adjustable keel on a small yacht or dinghy that acts, among other things, as ballast and to counteract the sideways force of the wind.