Dolphin Windlass For Boats Up To 45ft. These Vertical Low Profile Windlass models take up less space and are powerful and compact with motor/gear box mounting under the deck for smooth and silent operation. High Speed drop of up to 40 m/120 ft. per minute. Manual free fall with adjustable clutch. Head unit and vertical shaft is constructed using solid, high polished Stainless Steel AISI 316L. Works with chain only or rope/chain combinations.