Davis Instruments WindTrak 15: The Choice for Most Sailors
The WindTrak 15 is a 15-inch wind direction indicator designed for sailboats, offering precision and durability for sailors.
WindTrak 15 Features:
- Low friction sapphire jewel bearing suspension for sensitive readings.
- Accurate to wind speeds less than one knot.
- Vane constructed from tough, UV-rated engineering plastic, ensuring it is both light and strong.
- Wind tunnel tested to 80 knots.
- Visible day or night.
- Features a bird-proof spike to discourage birds from landing.
- Can be easily equipped with the WindTrak Light (#3200).
WindTrak Vane Positions at Different Apparent Wind Angles
The vane's position indicates the apparent wind angle relative to the boat. Diagrams illustrate positions for 'Going to', 'Beam', 'Broad', and 'Running' apparent wind angles.
Template for Setting Tacking Arm Angle
Use the provided template to set the angle of the reference tabs to display apparent upwind performance. Recommended angles are:
- 50° for high performance multi-hulls and foiling boats.
- 55° for race boats with extreme windward performance.
- 60° for normal ocean racers and cruising catamarans.
- 65° for heavy cruising boats.
WindTrak 15 Accessories
- #1705 Universal Masthead Mount: Extends the WindTrak 15 away from masthead obstructions. Features a 13" (33 cm) arm with hardware for top or side mounting and offset angles up to 20°. Compatible with WindTrak Light #3200.
- #3200 WindTrak Light: Enhances visibility of the WindTrak at night. Operates with low current (under 25 mA) and can be used with or without the #1705 mount.
- #3155 J-Base: Replaces the standard mounting base, allowing side, top, or front mounting on most masts.
The Complete WindTrak Line
Davis Instruments offers a range of WindTrak models to suit various sailing needs:
- 3120 WindTrak 10: 10" (25 cm) vane, suitable for small boats and dinghies.
- 3150 WindTrak 15: 15" (38 cm) vane, the preferred choice for most sailors.
- 3160 WindTrak AV: 15" (38 cm) vane, designed for mounting on whip antennas, combining two installations into one.
Tips for Using Your WindTrak:
- Always assemble your WindTrak using Locktite® or silicone seal on the threads to prevent loosening due to vibration.
- Remove your WindTrak before unstepping the mast.
- Periodically check the assembly screws.
- Lubrication is not required. Rinse off salt or dirt build-up with fresh water occasionally.
Replacement Parts for WindTrak 15
Spare parts can be ordered from your local dealer or directly from Davis Instruments. Ensure you identify your model before ordering.
- 3151 Spare Vane for WindTrak 15
- R3150E WindTrak 15 Spike with sapphire bearing
- R3152 Extra Reference Tab Assembly
