![]() ![]() True Wind versus Apparent Wind – Sailing Blog by NauticEd We took this from a section in the Crew and Skipper Courses to easily explain the difference between true wind and apparent wind Put you hand outside the window of your car traveling at 60 miles per hour on a still day and your hand will feel a 60 mile per hour wind.True-Wind Calculator is an app that helps you calculate True-Wind direction and speed based on actual vessel speed, apparent wind speed, angle of apparent wind to the vessel and vessel heading Download True-Wind Calculator and enjoy it on your iPhone, iPad and iPod touch.It provides much more accurate and stable true wind measurement for most boats. To calculate true wind all that is needed is speed and direction (provided by the GPS) and apparent wind speed and direction (from the wind instruments) There are instrument systems that will do this.Since we're dealing with scalar quantities for power calculation, any complex starting quantities such as voltage. Apparent power is a function of a circuit's total impedance (Z). Reactive power is a function of a circuit's reactance (X). As a rule, true power is a function of a circuit's dissipative elements, usually resistances (R). ![]()
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