sailing on the anchor rode
Stu has good advice except when anticipating thunder storms. Any commments about dealing with sailing on the anchor rode should include thoughts about possible effects of severe downdrafts that produce high straight line winds, cocking the boat intentionally will likely see it driven very far over on that tack overloading the ground tackle. The degree of loading beam on compared to bow on probably cannot be appreciated.A boat that robustly hunts both ways will stop hunting in very high winds and hold one tack presenting much of its beam to the wind (I know from experience). If using the Pardey bridle... be prepared to ease the bridle dead ahead. On boats like your C27 and my C250 with an offset anchor chock, the bridle will remain under enough tension to position the rode pull dead ahead. This effectively loads the leeward cleat thus leveraging the bow back on the wind.Like you outline on your C27, my C250 hunts bad as well and came precariously close to being driven onto the rocky outrcropping to the bay opening during an evening thunderstorm. I vowed to not subject her to those risk again. And..., there is no way to anticpate which direction straight line winds will come, it all depends on where the thunder head is... every nearby shore is a potential lee shore. This makes setting two anchors not foolproof. Also, my boat was not driven before the wind, but because she sailed high on her rode, drug it off at nearly 45 degrees off the wind.The anchor in use at the time was a one size over danforth and it had been set well and was in good holding. It plowed a furrow 450 yards never breaking out (thank God).Steps taken to try to prevent a repeat performance: * the primary anchor was changed to a bruce * a riding sail is deployed * a bridle is set on the rodeEffects upon the hunting on her rode: * the riding sail reduced hunting by 40% * the bridle reduces hunt by 40% * total reduction of hunting is 80%These percentages are in 25 knot winds. The hunt has been reduced adequate enough to prevent going beam on the swell far enough to roll the boat. That translates into sleeping rather than being miserable.My riding sail is a small delta aft of the backstay and I use a single bowline in a bite for the anchor bridle.