It doesn’t take much of a genius to read water like this (above). Obviously, there’s a tide rip in progress as the current sweeps around this headland. It’s a lot trickier to see the tiny wind-ripples. These run at right-angles to the true wind (try blowing onto a big bowl of soup), they’re there all the time, and once you can read them you can tell at a glance what the wind direction really is. This is vital if you’re setting up to go for a mooring under sail or are dead-running and concerned about coming by the lee. All the onboard data—electronic or physical—read apparent wind, which is useful for setting sails, but not much good for anything else. A wind indicator might have a true wind option, but trying to judge numbers and turn them into decisions is a lot harder than using your eyes.
Davis Instruments: Quick Reference Cards
CHECK THESEIf you’re sailing with new crew this summer or your kids have suddenly and inexplicably started to look up from their phones and take an interest in the finer points of cruising, these Quick Reference Cards from Davis are a great way to further their boating education. ...read more