Tech | OpenWind

Innovative Technology

OpenWind is an instrument designed to provide sailors with precised measurements for wind direction and speed. The application uses an advanced algorithm to calculate the true wind speed and direction in any environmental condition (e.g.: boat drift, current).

The usual half sphered anemometer cups measures differently depending on the angle of heel. The design of the blades from the OpenWind anemometer can measure more precisely with angle variation. The innovative wind cup design is used under license from SailTimer Inc. www.SailTimer.co

Battery

The estimated life of a Lithium-Ion battery is reduced every time the battery is fully discharged. OpenWind was designed to minimize the possibility of the battery completing a full discharge cycle, therefore maximizing the longevity of the battery.

The solar plate and battery are larger than necessary and the OpenWind device consumes very little energy. Both of these design features contribute to a very long battery life.

The total capacity of the battery is 1200 mAh. OpenWind consumes about -8mA if it is connected to a phone and with no sunlight. On a partly cloudy day it will consume about 0mA to +30mA. On a heavy overcast day it will consume about -7 to 0mA. On a sunny day it will charge up to +80mA. If the device is not connected it will enter sleep mode and shut down all noncritical functions.

Mounting OpenWind

OpenWind includes a rail mount that is can be attached to the most common rails found on sailboats. The aluminum mounting bracket which is attached to the OpenWind unit can be adjusted 360 degrees on the rail mount.

Another alternative is to fasten the device directly to the mast, or to any other part of the boat. Please note that the bluetooth signal propagates better with less obstruction and from a higher mounting position.

If there is no flat surface on the top of the mast, we offer a mast mount that enables you to mount it in a vertical position.

Mast mounting

To mount on the vertical side of the mast, we offer a mast mount that can be fixed with 4 rivets.

If you have a flat surface on the mast, you can screw the upper part of the rail mount on in, or you can screw the aluminum or carbon extender directly on the flat surface. You will only need 2 holes for M3 screws with 15 mm distance between them.

Mast mounting

To mount on the vertical side of the mast, we offer a mast mount that can be fixed with 4 rivets.

If you have a flat surface on the mast, you can screw the upper part of the rail mount on in, or you can screw the aluminum or carbon extender directly on the flat surface. You will need 2 holes with 15mm distance between them, one for the M3 and the other for the M5 screw.

Calculations

VMG = SOG * cos(TWA)

TWS = sqrt(SOG * SOG + AWS * AWS – (2 * SOG * AWS * cos(AWA * 3.14/180)));

TWA = acos((AWS * cos(AWA * 3.14/180) – SOG) / TWS) * 180 / 3.14

AWD = AWA + Heading

TWD = TWA + Heading

Water & Dust Resistance

Beautiful Design meets functional requirements

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