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Thread: New Boat 4 Sled

  1. #4381
    Join Date
    Sep 2007
    Location
    37.205346,-121.963398
    Posts
    762

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    Quote Originally Posted by WBChristie View Post
    Jibeset most definitely shows phrf ratings on the entry list....but the estimated finish etc must be calculated using PCR. The tracker really sucks....surely having the update times the same and synchronized first ping wouldn't be that hard to accomplish.
    Dear WB CHristie,

    Calculating and sync-ing the positions could be done with some degraded degree of accuracy using as estimated velocity. A spread sheet could be created. In the spirit of improving our data displays I have attached today's position report. Could you please create an XL spread sheet and associated report that shows synchronized , in time, positions ? We would happily post your results here. Frankly I don't have time to do this.

    Better tracking solutions are available. It would increase the entry cost about $400 / boat to use them. If racers are OK with this in the next iteration of the race, or maybe a sponsor, "The WBCHRISTIE Single Handed Trans Pacific Race" has a nice ring, we would certainly consider switching to Yellow Brick. Total sponsor investment, about $10,000 in a normal season.

    RAIN, 12:01, 32.25719, -129.066696
    ALOH, 11:53, 31.089933, -135.818102
    NOZO, 9:18, 31.270748, -134.603998
    SHAR, 11:27, 32.314027, -133.668297

    MOUN, 9:16, 31.712271, -135.286416
    PERP, 8:50, 31.9231, -134.4914
    SEA , 8:25, 32.848715, -131.837223
    SIRE, 9:51, 31.476098, -134.611701

    NORT, 7:07, 32.402103, -133.13211
    GREE, 8:45, 31.86092, -135.144366
    HULA, 11:48, 32.651228, -131.002993

  2. #4382
    Join Date
    Jan 2010
    Posts
    2,876

    Default

    Quote Originally Posted by WBChristie View Post
    Ah! its free......ok...point taken and sorry for coming across as an ingrate. What did the yellow brick setup cost? The synchronized ping would cost nothing BTW....and improve the tracker immeasurably. That is out of the developers hands.
    It's been the same work for 11 boats as it would have been for 23. We're a little tetchy down here. Looking forward to being in Kauai ... and collecting sailors 24/7 in squalls. That's the fun part. Apology accepted. Of course.

  3. #4383
    Join Date
    May 2009
    Posts
    269

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    Were the skippers even asked? All the trackers have the ability to set intervals....

    Quote Originally Posted by BobJ View Post
    Regarding Yellow Brick, I recall the club getting an additional $7,200 bill from YB after a SHTP. Not expected and definitely not in the budget!

    If every boat used the same device it would be possible to sync up the pings. But they don't, and the skippers had to buy them so it's their call. Look at it as a chance to do some math to extrapolate the necessary positions. Maybe create a spreadsheet to automate the adjustments?

    Regarding the ratings, the Fleet Assignments page on Jibeset shows the SHTPR's in the Rating column.

    Skip, Pacific Cup uses NorCal PHRF's "Downwind Ratings." That's the same system that when new, shot us in the shorts in the 2011 Spinnaker Cup! Jim A has refined the numbers since then.
    .

  4. #4384
    Join Date
    May 2009
    Posts
    269

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    Thanks for all the hard work Brian...nice to see a Pelagic on Hula! I have enquired about the cost of the trackers from yellow brick, and will report back.

    Quote Originally Posted by brianb View Post
    Dear WB CHristie,

    Calculating and sync-ing the positions could be done with some degraded degree of accuracy using as estimated velocity. A spread sheet could be created. In the spirit of improving our data displays I have attached today's position report. Could you please create an XL spread sheet and associated report that shows synchronized , in time, positions ? We would happily post your results here. Frankly I don't have time to do this.

    Better tracking solutions are available. It would increase the entry cost about $400 / boat to use them. If racers are OK with this in the next iteration of the race, or maybe a sponsor, "The WBCHRISTIE Single Handed Trans Pacific Race" has a nice ring, we would certainly consider switching to Yellow Brick. Total sponsor investment, about $10,000 in a normal season.

    RAIN, 12:01, 32.25719, -129.066696
    ALOH, 11:53, 31.089933, -135.818102
    NOZO, 9:18, 31.270748, -134.603998
    SHAR, 11:27, 32.314027, -133.668297

    MOUN, 9:16, 31.712271, -135.286416
    PERP, 8:50, 31.9231, -134.4914
    SEA , 8:25, 32.848715, -131.837223
    SIRE, 9:51, 31.476098, -134.611701

    NORT, 7:07, 32.402103, -133.13211
    GREE, 8:45, 31.86092, -135.144366
    HULA, 11:48, 32.651228, -131.002993
    Last edited by WBChristie; 06-24-2021 at 10:28 PM.

  5. #4385
    Join Date
    Dec 2008
    Posts
    143

    Default

    "Instruments? We didn't have no stinkin' instruments. White, .5 oz, hot-knifed, custom telltales were a better indicator for downwind steering..."
    I applaud the above from Skip. The look of new sailboats with a computer screen in front of the helm causes me to wonder if the new skipper didn't get enough time staring at a computer screen at work.
    SDK

  6. #4386
    Join Date
    Jul 2016
    Location
    Bodfish, CA
    Posts
    253

    Default

    The random position reporting is fine intrigue. Stay tuned for final results after all boats have finished and handicaps corrected.

    The interim data shows fascinating comparisons. For example, on one 24 hour period, the two Cal 40 sailboats reported a 24 distance that was about 1 mile different in the daily run of 186 miles (about).

    The messages from the skippers give added insight to the challenges.

    Go skippers Go!

    Ants

  7. #4387
    Join Date
    Sep 2007
    Posts
    3,341

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    By the end of the weekend it should be the typical 15 knots DDW for everyone. But the race for FTF and maybe overall is pretty much over.

    SDK, I watch cartoons on mine.

  8. #4388
    Join Date
    Sep 2007
    Location
    San Francisco Bay Area
    Posts
    2,001

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    I always figured that the trackers were primarily for safety. That they provide a way for the folks at home to watch the race progress and calculate within a mile or two exactly who was ahead and who wasn't, was secondary icing on the cake.
    S-2 7.9: "Wildcat of Loch Awe"
    1968 Selmer Series 9 B-flat and A clarinets
    1962Buesher "Aristocrat" tenor saxophone
    Piper One Design 24, Hull #35; "Alpha"

  9. #4389
    Join Date
    Jun 2010
    Location
    Fremont, CA
    Posts
    134

    Default

    Quote Originally Posted by brianb View Post
    Calculating and sync-ing the positions could be done with some degraded degree of accuracy using as estimated velocity. A spread sheet could be created. In the spirit of improving our data displays I have attached today's position report. Could you please create an XL spread sheet and associated report that shows synchronized , in time, positions ? We would happily post your results here. Frankly I don't have time to do this.

    Better tracking solutions are available. It would increase the entry cost about $400 / boat to use them. If racers are OK with this in the next iteration of the race, or maybe a sponsor, "The WBCHRISTIE Single Handed Trans Pacific Race" has a nice ring, we would certainly consider switching to Yellow Brick. Total sponsor investment, about $10,000 in a normal season.

    RAIN, 12:01, 32.25719, -129.066696
    ALOH, 11:53, 31.089933, -135.818102
    NOZO, 9:18, 31.270748, -134.603998
    SHAR, 11:27, 32.314027, -133.668297

    MOUN, 9:16, 31.712271, -135.286416
    PERP, 8:50, 31.9231, -134.4914
    SEA , 8:25, 32.848715, -131.837223
    SIRE, 9:51, 31.476098, -134.611701

    NORT, 7:07, 32.402103, -133.13211
    GREE, 8:45, 31.86092, -135.144366
    HULA, 11:48, 32.651228, -131.002993
    I tried. This is what I got. Right column is estimated corrected time in seconds. In case there is sponsorship, would I be able to have "Leaderboard brought to you by todd22123?" I do not know how to upload the spreadsheet so others can check the work.

    Name:  Capture.JPG
Views: 115
Size:  23.3 KB

  10. #4390
    Join Date
    May 2015
    Posts
    833

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    Quote Originally Posted by todd22123 View Post
    I tried. This is what I got. Right column is estimated corrected time in seconds. In case there is sponsorship, would I be able to have "Leaderboard brought to you by todd22123?" I do not know how to upload the spreadsheet so others can check the work.

    Name:  Capture.JPG
Views: 115
Size:  23.3 KB
    Make it a Google sheet. Just import your Excel, and make the link open to all.

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