I have a depth gauge on Liza and the only other thing I really want in the instrument line is a wind sensor and indicator. Yes, I know a couple of strands of wool or torn sail cloth attached to the standing rigging goes a long way, but something a little better was needed. So I bought a Nasa Marine Target 2 system while I was visiting the UK in August. It looked simple enough to fit. Masthead unit and a display unit! All I need to do is use the bosuns chair, up the mast, four screws and I'm done! Well, firstly, Liza is light so I thought I'd let Helen try it as she's a lot lighter than me and so would swing at the top of the mast less. Drilling with the battery drill into the mast proved beyond her, so two days ago I went up… Because Liza only displaces 1.2 tonnes and the twin keels of Liza are only 500kg combined, it's quite tricky I found at the top of the mast compared to larger boats (which I was more used to). Any slight movement and I swung around...