Dockhead
Well-Known Member
In nit-picking mode, I would question this. I was out every weekend of October and November (as I will be this year) for the Hamble Winter series. As far as I recall it was only over 30kts consistently twice during the Winter series last year. One they cancelled, and one we raced, max wind speed (in the central solent) of 37kts. If anyone has a bunch of time on their hands, the records will be available on bramblemet.
Regardless, it's quite clear that a Moody 54 (very, very nice boat btw) is a lot more stable under power than an AWB. That 30" prop, and 24 tonnes of weight certainly isn't going to add up to a boat that's easily blown off course. However, you still seem to be saying that it is easier to get the bow through the wind whilst going astern than it is going ahead. That would make the Moody 54 unique I believe!
Hmm, maybe my memory is somewhat faded, but I remember it was blowing a gale continuously in October and November (December already better) and everybody was talking about it as the windiest months in years. I do clearly remember the first weekend of December, around 08:00 on Sunday morning, they recorded 52 knots at the Yarmouth harbourmaster's office. It was still blowing 40+ when we ventured out of Yarmouth (a tight maneuver by the way) and during the whole (short) trip home. I have a video showing 35 knots of apparent wind and 12 knots of boat speed, on a dead run, from that trip, what a ride, just a little scrap of headsail out. There was another weekend in early October when it was really blowing like hell, also touching 50 knots, I remember well. It's all in my log somewhere but I'm not on the boat.
As to getting bows through the wind -- I would have thought that it is easier on all boats to turn through the wind in astern, at least from a standing start. Definitely it is the case on my boat. That would be because in ahead you are fighting the wind to gain steerage. In astern, on the contrary, the wind is pushing you along. In my boat, that moment where you are accelerating through the phase where you have no steerage is much shortened, in astern -- you "snap" through it. The rudder bites and the wind pushes you down on the rudder, snapping you around. As you come around, the windcocking effect dies off and suddenly you are in complete control.
In ahead, by contrast, especially in a strong wind, the resistance from the wind is delaying and working against your acceleration through that dead point. So there is no "snap"; you have to power through it. It is that moment when you are accelerating but still have no steerage that is dangerous -- you are at the wind's mercy. That moment is much prolonged when you are accelerating through a head wind. On our boat this is less pronounced because even without steerage we have some rudder authority from the propeller wash on the rudder -- shaft drive, large prop close to a large rudder, 100 horsepower. A saildrive like that Bav has almost none of this effect because the prop is very far away from the rudder (and it's got a high aspect spade rudder, too).
Obviously in all cases the power of your main engine and the bite of your propeller are key factors. A lightweight boat with a lot of windage and a weak engine and a small fixed-blade propeller is going to have far greater problems, than others. You can get stalled -- like being caught in irons -- and blown off, rather than powering through that moment. That happened to me in a chartered Beneteau 411 one time, in the Aegean, during the Meltemi, years ago -- scared the s*it out of me. It was my rude introduction to boats' weathercocking.
Anyway, that's our experience. I would be most interested in yours.
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