Join Date: Dec 2004
Location: Alameda, San Francisco Bay
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Re: Boat won't come up into wind
Let’s see if I can remember my rigging formulas correctly. Weather helm is when CE is aft of CB and lee helm is the opposite. Cruising type rigs have a rake in the range of 1 – 2 degrees whereas racing rigs more like 5 degrees plus. After that, it is all trigonometry. Five to six inches is a good starting point guess for the OP's 28" boat. So, to determine your rake in inches on the boom, you need to know your “P” dimension. For a boat that is about 28’ LOA (and not knowing "P"), two inches on the boom would indicate to me that the rake is about a 1/3 degree. As I stated before, once you got it statically tuned, the do the dynamic tuning which is sail the boat, tweak the rake, sail again. Repeat the process until you are happy with the results.
My basic assumption in suspecting that rake is the problem is: 1) OP is proficient in sail trim and 2) he said that he was using a non-overlapping headsail. Another possible reason for not being able complete a tack would be too large of an overlapping headsail. (You guys on the east coast actually tack with those 150 and 170 headsails? Wow.)
2000 Catalina 34 MkII