Harken 40 Self-Tailing Radial Aluminum Winch 2 Speed 2 Speed. The self-tailing mechanism on the winch means that one crew member can quickly and easily trim or raise sails. Specifications for Harken 40 Self-Tailing Radial Aluminum Winch - 2 Speed: Manufacturer: Harken Color: Black Fabric/Material: Aluminum Height: 6.88 in Weight: 8.4 lb Package Contents: Harken 40 Self-Tailing Radial Aluminum Winch - 2 Speed Harken 40.2STA: 40 Self-Tailing Radial Aluminum Winch 2 Speed 2 Speed