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The Harken FlatWinder powered block is a self-contained, low-profile electrically-powered system for mainsheet traveler adjustment. This powerful block offers sailors significant benefits in mainsail control, enabling quick rig depowering and delayed reefing as wind increases. Functioning like a compact captive winch for the traveler, the unit is completely self-contained and operates in both directions. It allows the car to move anywhere on the track while keeping the traveler line off the cockpit floor. The system eliminates the need for traditional winches, resulting in a cleaner and more navigable deck.
Self-Contained Operation: The block operates in both directions, allowing the car to move anywhere on the track while keeping the traveler line off the cockpit floor.
Line Containment: The wide-diameter drive sheave mounts on a sloped base, forming an angle with the sheave top to contain the line so it does not push against the block walls.
Progressive Grip: This design exerts just the right amount of friction to keep wear on the line and components minimal.
Deck Cleanliness: The FlatWinder eliminates the need for winches, making the deck cleaner and easier to navigate.
Motor Specifications: The compact horizontal motor is housed neatly belowdeck and has a maximum working load of 250 kg (551 lb).
Pull Capacity: When used with 10 mm line and a 4:1 purchase, this translates into around 1000 kg (2205 lb) of pull.
Line Speed: The line speed with no load is 35 m/min.
Control Box: A Harken Dual-Function Control Box is included. This integrated load controller and control box conserves space and is easier to install, requiring half as many wires as separate systems.
Switch Recommendation: 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.
Compatibility: The FlatWinder fits monohulls 15 - 18 m (50 - 60') and catamarans 14 - 15 m (45 - 50').
Voltage Options: It is available in 12V or 24V depending on the boat’s electrical system.
Exclusions: Switches and circuit breakers are not included.
Specifications
• Brand: Harken
• Reference: FW250EA24H
• Weight: 12.5 kg
• Line entry height: 29 mm
• Line Ø: 10 mm
• Fastener circle: 125 mm
• Fasteners: M6 SH mm
• Number of fasteners: 6
• Maximum working load: 250 kg
• Line speed (no load): 35 m/min
• Line speed (no load): 115 ft/min
