apparent wind


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apparent wind

[ə′pa·rənt ′wind]
(navigation)
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It uses apparent wind, or the sail wind, to generate pull in much the same way that an airplane will take off when it reaches a certain speed.
The Nexus system also includes a HPC compass that has a six-axis configuration to counter heel and, pitch, so that the apparent wind angle, true wind angle, and direction are accurate, even if the boat is being sailed on its ear.
The WatchDog[R] Sprayer Station measures temperature, humidity, barometric pressure, and apparent wind speed and direction.
This is always the dilemma of fast downwind sailing - as you are going with the wind it seems less than it is, but as soon as there is a problem and the boat slows down or stops the force of the apparent wind jumps up rapidly.
They all create suspicion, as do any fluctuations in performance of which the market has apparent wind.
Unlike traditional wind sensors, the GWS 10 serves as a mini weather station, providing barometric pressure and air temperature data in addition to apparent wind and pressure trend data.
It may be a starter pack, but it provides a heap of information including speed, distance run, depth, water temperature, start timer, deep and shallow water alarms, true wind speed, apparent wind speed and angle and true wind speed and angle.
The unit calculates apparent wind speed and direction, barometric pressure, air temperature, relative humidity, dew point, and wind chill temperature.
Because of the speed that the mulithulls travel across the water, the apparent wind is quickly drawn forward so even when the true wind is well aft, the sails (or wings) are trimmed for upwind angles.
So, although asymmetrics are easy to set and suited for passage races, it's generally considered that they don't generate enough apparent wind angle to suit the current IRC circuit in Australia.
The Nexus system includes an HPC compass that has a six-axis configuration to counter heel and pitch, so that the apparent wind angle, true wind angle and direction are accurate, even if the boat is being sailed on its ear.