Upwind App
Upwind App
Take a Bearing
Point your phone along the lubber line to see your bearing and your boat's speed towards that bearing Lock in the bearing with the lock button
Your Speed
The bottom line. Your speed in knots in the direction you point your phone.
Concise Location and Speed
Your position, your speed of ground and your course over ground as provided by GPS.
Upwind automates the decision that every racing sailor must make on any upwind leg, "Is it better to head up to close the distance, or bear away to improve my speed?" Cruising sailors may also use Upwind to monitor their progress towards a diffuse headland, a lead of deep water, or another poorly-charted feature. Upwind helps you to avoid unnecessary pinching and steer the most efficient course to wind, and it may provide useful information about leeway due to currents and tides.
Of course, navigation software can provide you with this information, but only if you know the exact position of your destination. Often times your chart will not provide this and you will not have opportunity to sail to your destination in advance to determine its exact position.
Upwind displays a compass with a lubber line, your course and speed over ground, your latitude and longitude, and the bearing to your destination in degrees, both magnetic and true.
Upwind requires a device with a GPS and a magnetometer. iPod Touch and WiFi-only iPads may not have the required hardware. Please be sure you have a supported iPhone or iPad before buying Upwind.
Upwind should not be used for navigation. The prudent mariner will rely upon many redundant sources of information and proper preparation, competency and vigilance to ensure safety. Relying upon Upwind without reference to proper navigational resources can result in serious injury or death.