Photos/Video – SailTimer Wind Instrument™

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Attention to detail.  Craftsmanship.  Precision fit.  Built to last.

You’ve never seen a masthead anemometer like this before. This innovative new design has a digital compass inside the wind direction arrow.  The arrow knows which way it is pointing;  no calibration with the bow of the boat is necessary.  The tail is tapered and molded in solid plastic to make the entire unit submersible.  The plastic is clear, to allow the sun to charge the solar panels inside.

A non-corrosive jewel bearing is used for the wind cups and the wind direction arrow, the same as in watch mechanisms.  Jewel bearings are submersible (even in salt water) and have no drag, unlike ball bearings.  With the point of a sturdy pin rotating on a jewel harder than steel, the wind direction arrow and wind cups can turn in even the lightest breeze.

For boats of all sizes, as shown on this postcard from recent boat shows. Also see video clips below.

● Sailing with the SailTimer Wind Instrument (20-second clip). As shown, it is for sailboats of all sizes, from keelboats to dinghy sailboats.  No wires to install down the mast (and no 12-volt battery required).

● Is it steady in the wind when the boat is bouncing or the mast is swinging around?  Yes, this centerboard sailboat is moving around a lot at the dock, and you can see that the Wind Instrument is dead-steady for the wind direction, in spite of the mast swinging around (4-second clip).  The wind shifts a bit at the end of this 23-second clip, but you can see that the Wind Instrument is unaffected by the mast swinging around.

● Incredibly thin tail electronics on the new design used since 2016: closeup and trailing edge (52 sec), side and front view (32 sec), and view of both sides in a very light 1-2 knot puff of wind (19 sec.).

● Wind cups turning in the lightest breeze:  The design of these wind cups is the result of extensive testing.  They are small and light, and work equally well when sailing along heeled over.  These blades have no arms, which is also an unusual design, allowing them to spin at higher velocity.  In this video clip (21 sec), you can see the wind cups turning and the wind direction arrow moving with just 1-2 knots of wind.

● How-to video:  Capt. Dom’s video blog from Chesapeake Bay, USA covers how to change wind cups, use blue cap for off-switch, and how to raise the Wind Instrument with the cantilever method without climbing or lowering the mast.

● Using the 2015 Wind Instrument in the off-season to make wind graphs of winter storms (1:11).

Designing a better anemometer for sailboats (2:14).

● YouTube demo of design features & innovations in the second-generation 2015 model (2:40).

● User video from San Francisco Bay, USA showing side-by-side views of Wind Instrument and wind direction/speed in SailTimer app (13 sec).

● Is it balanced?  Yes.  The tail looks heavier than the nose cone, but it’s not:  see for yourself (47 sec.).

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