FiremanSam said...
my mate showed me this just the other day...
has anyone actually used / uses this and gets anywhere near accurate results ?!
used it in the weekend. It said 10knts and I couldn't get planing with a 7.8 until it picked up later, so about right. Intend to use it every time I rig up and compare it to my gut instinct about what sail to use. I suppose the only way to really know is to buy a calibrated windmetre and compare results over time.
It does have a calibration setting.