Three-speed self-tailing winches are ideal sheet winches on larger boats. Coupled with Harken's large drum diameters, three-speed self-tailing winches offer very high line speeds for racing or fast cruising, even in heavy conditions. Self-tailing allows one crew member to handle the entire trimming taskﾗperfect for cruising or racing boats.
First gear is selected by depressing the nameplate ring next to the winch handle socket. The winch then auto-shifts from first to second to third on successive crank direction of rotation changes. Use first gear for fast sheet trimming in light to moderate air. All large three-speed winches offer drums supported by ball bearings, two gears driving the drum, 17-4 PH stainless shaft pins, and roller bearings on all gears. By special order, the B74.3 can be provided with power ratios of 85:1 or 92:1 for use on high loads such as found on very large boats or multihulls.
|Drum Diameter (in)||5-7/8|
|Drum Diameter (mm)||150|
|Fasteners (in)||6 x 3/8|
|Fasteners (mm)||6 x 10|
|Power Ratio||9.5:1 / 24.7:1 / 73.5:1|