10″ wind vane for small keelboats,
sportboats and dinghies
#3120
WindTrak 10 features:
- J-Base™ mount for installation on top, side, or front of most masts
- Sapphire jewel bearing for super low friction and extra sensitivity
- Vane length 10″ (25 cm), weighs just 1.2 ounces (31 grams)
- Vane and tabs feature reflectors for excellent visibility day and night
- Responds in wind as low as 0.2 knot
- Wind tunnel tested to 80 knots
The glass-filled polycarbonate J-Base mounts vertically or horizontally on the side, front, or top of most masts. Comes with two #10 (5 mm) self-tapping screws.
To adjust the tacking arm angle to match upwind performance, refer to the template on the next page.
TAB ANGLE ADJUSTMENT
55° for boats with good windward performance
60° for normal ocean racers
65° for normal day cruisers
ATTACHING VANE & TACKING ARM TO SUPPORT SHAFT
A. Slide crook of tab assembly wire over vane threads.B. Apply silicone sealant or Locktite® to vane threads.C. Completely tighten with a wrench until snug.
INSTALLATION ALOFT
Align WindTrak 10 with the centerline of the boat, apply silicone sealant or Locktite® to the set screw and tighten. Tab angle should be preset at approximately 55, 60, or 65°, depending on upwind performance.
THE J-BASE
The J-Base comes with two #10 (5 mm) self-tapping screws. Drill a pilot hole in the mast, apply silicone sealant or Locktite® and screw into the mast. Installation of J-Base can be accomplished by tapping the mast for 3/16″ (5 mm) machine screws or by using epoxy putty to affix the base to the mast.
WindTrak 10 Accessories
#1705 Universal Masthead Mount, for installations requiring more room at the masthead. This mount extends WindTrak away from the masthead up to 13” (33 cm).
#3200 WindTrak Light, for nighttime sailing. Draws under 25 ma current. For use with or without #1705.
The Complete WindTrak Line…
WindTrak models are available for every sailor’s needs.
| 3120 | WindTrak 10 10″ (25 cm)vane, For small boats and dinghies |
| 3150 | WindTrak 15 15″ (38 cm) vane, The choice for most sailors |
| 3160 | WindTrak AV 15″ (38 cm) vane, for mounting On whip antennas, combining two Installations in one |
Tips for using your WindTrak:
- Always assemble your WindTrak with Locktite® or use a silicone seal on the threads to eliminate the possibility of the unit unscrewing in use from vibration.
- Prior to unstepping your mast, take your WindTrak down first. Periodically check the assembly screws holding your WindTrak together.
- Lubrication is never needed, but years of salt or dirt build-up should be rinsed off with fresh water occasionally.
Replacement Parts for WindTrak 10
Spare parts can be ordered from your local dealer or from Davis; an identity which model you have before calling.
3101 Spare Vane for WindTrak 10
3125 Extra J-Base for WindTrak 10
Davis Instruments
3465 Diablo Avenue, Hayward, CA 94545 U.S.A.
www.davisinstruments.com
03120.046, Rev. A November 2020
Davis Instruments
