Re: Wind indicator NOT for mast top
A Windex is an essential piece of equipment. It gives you a good indicator of apparent wind direction and also allows you to adjust the pointing angle V so that it works with your ability to point. It also is a critical indicator of your jibe danger point when on a run. You will use a Windex more than any other piece of gear on the boat. As far as sail trim, you need telltales on all your sails to tell you what the wind flow over each sail is doing as well as how your headsail and main are cooperating. These are really cheap to buy or make yourself. Yarn works as will mylar tape but a pack of stick-ons can be had for about 6 bucks. We used to just thread a piece of yarn and knot off but they're hard to see on a large sail. As far as wind intensity, that's something you need to feel more than meter unless you're racing and working with technical polar data...way more than you need to just go sailing.
Alberg 35: With a philosophical flourish Cato throws himself upon his sword; I quietly take to the ship.