High Winds & Springlines
I've read a number of recommendations here and elsewhere that say always, use a springline to snug the boat up against the dock so you can put on remaining lines. Most of these posts suggest a pretied spring line, either midships, or on quarter, or on bow, depending on how one is approaching the dock. My boat is 11' 7' wide in a 14' wide slip and carries most of this width to the stern (normal docking is backing in). The prevailing wind is such that the approach must be downwind/crosswind (wind at a 45 degree angle both in fairway and after turn is made into the slip). While backing is the normal approach, if the wind is high, at some point keeping control over the boat will require too fast an approach, and in this condition, docking would be temporarily bow into the slip. Most of my sailing is single handing, and often, when there is someone with me, they are not frequent boaters, so they are prone to do something other than what is needed. I have a number of assists (buddy lines either side of slip, sometimes a safety line to catch the boat from coming down hard on the finger pier (it's downwind, and it's here that I'm subject to damage the boat, so I want to stay off the pier), and lastly, a quick hook up procedure for stern and bow lines from the steering station. It all works relatively well in my dock, but if I go to a transient dock, then I don't have these. Therefore, the concept of using a spring line is attractive.
From the moment that the loop on a pretied springline is dropped over a piling, there is slack between the piling and the cleat, but the boat must be moving at sufficient speed to maintain rudder control, and when the slack is gone, the boat is going to be jerked to a stop...not good for the boat. If I stop the boat with the engine to avoid this jerking tight, then the wind, in an instant, is going to sweep the boat down onto the finger pier. How do proponents of the springline handle this.
If I back into the slip, propwalk tends to pull me away from the finger pier (my danger place in high cross wind), but if the wind is significant while moving at minimum steerage speed, the wind easily overcomes any attempt for prop walk to move the boat upwind, and the boat will drop down onto the finger pier hard (could put permanent fenders on the finger pier, but don't want to come down hard on it in any case.) Suggestions? Also, if we successfully get the slack out of springline, the narrow bow is going to be drawn up hard against the upwind/outboard piling. The bow pulpit extends over the edge of the boat here, and it's going to slam against the piling before the hull does...I don't need a bent pulpit. Also, if I am successful in getting the bow snugged against the piling, is there enough lever arm so that backing the engine at any speed is going to overcome the crosswind and hold the stern upwind away from the finger pier? Also, when the wind is high, the boat is bouncing up and down in the chop, while the fixed pier is not moving, adding another probable source of damage and reason not to be against the finger pier.
If the spring line is led aft and I try to adjust/lengthen it as the boat moves through the slip, that gets a bit tricky. One mistake or lapse, and it's all going to be bad.
Departing the dock bow first, with the wind trying to blow me down onto the piling, and once into the fairway, down towards fairway deadend, where the boat will be trapped...nearly happened once several years ago..., using a spring line is tricky because I can't start the turn upwind in the fairway until about 30 ft. of my 32 ft lenght is out into the slip. With only about 2 feet clearance between the boat and the two pilings, in any significant crosswind, I going to be swept down onto the leeward piling before I clear the dock while the bow is also rapidly swept downwind towards the dead end, where there's going to be major damage. Comments?
Sorry to be so long, but it's the details that give the problem. I've seen a number of suggestions regarding Jack Klang's book and video...but I saw a couple of video clips posted on the Latitudes and Attitudes site, and the spring line demonstration, to me a least, seemed pointless: no wind (supposedly up wind) with glass like water. Under the demonstration conditions, you didn't even need the spring line...just motor slowly up and stop against the dock. Maybe the book and purchased video is better. Anyway, I'd appreciate any comments on how to handle my situation other than go sailing another day. Thanks.