FlatWinder Powered Block — 12-volt Electric

Harken FlatWinder Powered Block — 12-volt Electric

The Harken FlatWinder powered block is a self-contained, low-profile electrically-powered system for mainsheet traveler adjustment. This powerful block is easy to use and offers sailors huge benefits in mainsail control, giving them the means to quickly depower the rig and delay reefing when the wind picks up. Like a compact captive winch for the traveler, the FlatWinder is completely self-contained and operates in both directions, allowing the car to move anywhere on the track while keeping the traveler line off the cockpit floor.

Harken recommends installing two space-saving, dual-function Digital System Switches, one button to port and the other to starboard, for activation from both sides of the boat. The block's wide-diameter drive sheave mounts on a sloped base, forming an angle with the sheave top to contain the line so it doesn't push against the block walls. This progressive grip exerts just the right amount of friction to keep wear on the line and components minimal. The FlatWinder eliminates the need for winches, making the deck cleaner and easier to navigate.

The compact horizontal motor is housed neatly belowdeck and has a maximum working load of 250 kg (551 lb). When used with 10 mm line and a 4:1 purchase, this translates into around 1000 kg (2205 lb) of pull. Line speed with no load is 35 m/min. A Harken Dual-Function Control Box is included, conserving space and requiring half as many wires as separate systems, making it easier to install. The FlatWinder fits monohulls 15–18 m (50–60 ft) and catamarans 14–15 m (45–50 ft). It is available in 12V or 24V depending on the boat's electrical system. Switches and circuit breakers are not included.

Key Features

• Self-contained, low-profile electrically-powered traveler adjustment system
• Operates in both directions for full track range of motion
• Maximum working load of 250 kg (551 lb)
• Pull capacity of approximately 1000 kg (2205 lb) with 10 mm line and 4:1 purchase
• Line speed of 35 m/min at no load
• Includes Harken Dual-Function Control Box with integrated load controller
• Compact horizontal motor housed belowdeck
• Compatible with monohulls 15–18 m and catamarans 14–15 m
• Reduces deck clutter by eliminating need for traditional winches