I am switching all my blogging to Hawaii Standard Time (HST) in order for everything to make sense for the finish. That’s because there are diurnal effects, building sea breeze influences etc.. that are easily visualized when one thinks in local time.
This morning at 3 am hst, the Diamond Head Lighthouse bore 242 degrees and was 299 miles away on a great circle. This afternoon at 13:15 hst, the Diamond Head lighthouse bears 235 degrees and is 215 miles away on a great circle.
If you look at the illustration, you can see that we are favoring the right hand side of the course because we are presently sailing in headed pressure in a lane clear of cloud cover and we expect a 15 to 20 degree wind-shift as we progress on the right side of the track. That’s when we’ll jibe. We’ll still play the shifts down the track in order to shorten the distance of course.
1. Our position at 13:30 hst
2. Optimal vmg course (at 13:30 hst for the wind direction at that time)
3. Optimal vmg course if on the other jibe (at 13:30 hst for the wind direction at that time)
4. The great circle between the last reported position and the finish
5. Port layline to the finish (at 13:30 hst for the wind direction at that time)
6. Starboard layline to the finish (at 13:30 hst for the wind direction at that time)
7. The finish line at Diamond Head lighthouse
Note: lines 2, 3, 5, and 6 form the diamond that we will stay inside while playing the shifts.
1. 7/15 race start to 7/16 6am pst – average heading 220°, 41.12 nautical miles
2. 7/16 6am pst to 7/17 6am pst – average heading 201°, 313.64 nautical miles
3. 7/17 6am pst to 7/18 6am pst – average heading 224°, 145.66 nautical miles
4. 7/18 6am pst to 7/19 6am pst – average heading 232°, 195.77 nautical miles
5. 7/19 6am pst to 7/20 6am pst – average heading 258°, 260.32 nautical miles
6. 7/20 6am pst to 7/21 6am pst – average heading 257°, 249.02 nautical miles
7. 7/21 6am pst to 7/22 6am pst – average heading 257°, 239.25 nautical miles
8. 7/22 6am pst to 7/23 6am pst – average heading 234°, 200.97 nautical miles
9. 7/23 6am pst to 7/24 6am pst – average heading 240°, 198.76 nautical miles
10. 7/24 6am pst to 7/25 6am pst – average heading 258°, 216.6 nautical miles
11. Distance remaining as of 7/25 6am pst – 299.77 nautical miles at 242°
Note: Each leg is a 24 hour daily run from 6a pst to 6a pst. Each report is marked with a red dot. The average heading for each leg along with the distance travelled is noted below.