Boat is a 2004 Tall Rig
This continues to bother me. Rig is set every spring, halyard and eye are used to make certain that mast is straight. Loos Gauge is used to make certain that tensions are correct, and is done again once or twice in the season to check for any change.
We have done everything we can think of to answer our question but have never corrected our issue. The boat, based on ST60 boat speed, loves port tack much more than starboard. Given, using GPS, it is closer than ST60, but still different. With consistent wind it can be .5 to 1 knot slower by reading on a starboard tack.
Initially I thought the issue was rig set up. After a couple of years, and having others check the rig, we have not been able to answer the WHY. As GPS puts us closer in speed, I thought that it must be that as the thru hull for the speedo is on port side of centerline near bow, that the water pressure would be different on each tack so info would be different.
The question: Does anyone else have this quandary or have opinions on the issue?
This continues to bother me. Rig is set every spring, halyard and eye are used to make certain that mast is straight. Loos Gauge is used to make certain that tensions are correct, and is done again once or twice in the season to check for any change.
We have done everything we can think of to answer our question but have never corrected our issue. The boat, based on ST60 boat speed, loves port tack much more than starboard. Given, using GPS, it is closer than ST60, but still different. With consistent wind it can be .5 to 1 knot slower by reading on a starboard tack.
Initially I thought the issue was rig set up. After a couple of years, and having others check the rig, we have not been able to answer the WHY. As GPS puts us closer in speed, I thought that it must be that as the thru hull for the speedo is on port side of centerline near bow, that the water pressure would be different on each tack so info would be different.
The question: Does anyone else have this quandary or have opinions on the issue?