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I remember that, prior to the Clipper Cove sail, we were discussing the merits of taking the Oakland Estuary versus Pier 54 approaches.
Pier 54 was observed to be a shorter drive for many of us from the Peninsula and appeared to be the shorter sailing distance between two points. Given the prediction of little or no wind, the more exposed approach traversing the wind channel under the western span of the Bay Bridge did not seem to be a factor.
However, when actually sailing the course to Clipper Cove I felt a sufficient cross wind from the north blowing under the western span of the Bay Bridge to be blown south of the rest of the group and felt compelled to motor north into the wind to get closer to Mike Higgins, who had managed to hold the norternmost course of all of us, despite having no motor.
Although I did not see the capsize on the return trip at the mouth of Clipper Cove, I suspect the reason for the capsize was that the wind shadow suddenly ends at the point where Jerry Kergan's map shows the capsize occurred.
If you are not ready for the sudden increase in wind speed, it can create problems. I had actually reefed my main sail in preparation for the transition, but once I saw that I could handle it, I unfurled the reef. At the time I was going out, it looked to me like everyone had things under control.
With the increased afternoon wind speed, the return route to Pier 54 in San Francisco made the cross wind under the western span a little more of a factor, albeit more in the disired direction of travel. For most of the traverse past the wind shadow of Yerba Buena Island, I was on Harry's windward side. Below is a picture of Harry in the middle leg of the return trip to Pier 54.
On the return, the northerly cross-wind under the span tended to bend the return sail to the south, and the task appeared not to be blown south of the target of Pier 54 cove. Not having my GPS working and not being able to see exactly where the cove was, my initial effort was to aim for Pac Bell Park, which was to the north, until I spotted the two large ships I remembered being at the mouth of Pier 54 cove.
In contrast, Jerry Kergan said it was relatively calm on the east side of the bay returning to Alameda via the Oakland Estuary.
So comparing the two routes, while the Oakland Estuary route may be a little longer, it is substantially more sheltered against the wind for most of the route. While the Pier 54 route is shorter and offers more scenic views of San Francisco and the Bay Bridge, it can present more challenging cross winds. So where winds are predicted to be strong, the Oakland Estuary route would appear to be the better choice if you want a more leisurely sail.
On the positive side, the scenic route from San Francisco's Pier 54 was very enjoyable and I would do it in a hearbeat again under similar conditions.
Best,
Carl
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