In small sailing dinghies it is rare to find a ballasted centreboard. This roofing material can be fully adhered, mechanically fastened, or ballasted. There are three installation methods&colon; ballasted, mechanically attached, and fully adhered. V countries was a circular tube ballasted by an under-run regular mains filament lamp. Insufficiently ballasted boats tend to tip or heel excessively in high winds. A well designed ballasted boat can recover from a capsize, even from turning over completely. The hulk was ballasted, anchored and periodically pumped out to keep her afloat. The network uses a ballasted setup with locally manufactured concrete sleepers. The locomotive can be ballasted to give axle loads from . Insufficiently ballasted boats will tend to tip, or heel, excessively in high winds. Both units were then ballasted to improve traction. The drydock was ballasted down, and DDG-61 floated free on 11 February 1994. During lifting operations, the vessel is ballasted down. The ballasted track ends and the timber deck begins here. Both ballasted and ballastless types exist.