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Profile for JB



Name JB
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Posts305
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Sail Fair.
  • 2018-12-28 13:12:23
    2018 SYC rankings
    Board » Sailonline Yacht Club
    Good afternoon all.

    Probably I'm missing sometning but, I don't understand why my first seven 2018 40' Series results were discarded from my SYC results.

    Thank you.

    João/psail
    Sail Fair.
  • 2018-12-28 10:00:16
    40’ Series hiatus.
    Board » Flag Officers » Races
    Good morning all.

    I’ve read the SRC annual report about the 40’ Series and it’s sad to know this SOL championship won’t turn in 2019.
    I understand and also agree with SRC exposed arguments. Pity that a phew conditioned the remaining majority.

    One possible way for overcoming the main issue, if not, the only one - the boats overuse/abuse from some skippers - is to make the Series races with pre-fixed boats for all, turning the Series to a OD championship with #4 - #5 40 footers to be used.
    But you loose part of the game.

    Other suggestion, independently of the Series future format (OD or multiple choices), is to upgrade the Series with faster boats, instead of “artificially” downgrading the faster ones (notice: one was already available in the SOL marina for the 2018 Series).

    From my part I’ve trying since a while to bring the Melges 40 Polar but till now without success.
    So, if anyone out there can give an hand on this I’ll be very thankful.

    Thank you.

    João/psail
    Sail Fair.
  • 2018-12-25 17:14:22
    Re: qtVlm thread
    Board » Technical Support
    Hi Philippe and all.
    Good afternoon.

    Well, the settings I’ve been using a long time (since they were available) are the same, so I don’t have any induced distortion on comparing results generated with different settings.

    Those settings have proved to give results in all kind of WFs and with different boat Polars, being also more relevant with the faster boats, as you easily understand and as per example I sent you recently.

    Correct, the lower the Time Step (TS) used for calculating the Isochrones, the bigger will be number of potential WPTs. That’s the price for getting precision.

    The first point you mention misses rationality.
    We all know that ANY GRIB file won’t be exactly what you are going to sail IRL. Under that argument - yours - I ask why do we make routings?

    I totally agree with your second point and part of the third. For that I can give you one plausible answer for people not using TS = 5 minutes: I takes a lot of time to get a result, not because is less precise.

    In relation to fourth point, previously I gave you a suggestion: bring back the old "cutter", which I now reiterate.

    If it doesn’t have anything to do with the used TS, what’s the problem for implementing it again?

    My Dear Friend have also
    a Merry Xmas

    João/psail
    Sail Fair.
  • 2018-12-25 11:49:39
    Re: qtVlm thread
    Board » Technical Support
    In past years we saw a quick evolution not only on weather routing software but also on sidekicks aiding tools.
    One of the best weather routing programs used around the corner is qTVlm. Since the very first versions it has been upgraded in a good rhythm bringing also a plethora of innovations, sometimes using info and suggestions gathered from the community.

    Anyhow, one qT aspect that has been roller coasting is the Optimizing/Simplifying algorithm processes applied to the calculated routing WPTs.

    It is very simple to verify that in spite of using the “Optimum Simplify” process first, and "Optimize" after (applied only once or several times), normally we won’t get the best ETA - even before any trimming operation on the fixed calculated WPTs, the ones in “red” color generated around land/rocks/barriers and on the remaining "green" movable ones.

    The cause for this is identified. Is a direct consequence of the used decimating algorithm implemented in qT for the “Simplify”/ “Optimum” processes.

    In recent versions - 2018 - this issue was aggravated as the decimating operation during the “Simplify” process stopped being uniformly applied along the routed path, leaving us to the somehow paradox of having more remaining WPTs in the end of the route, precisely where the predictability of the WFs are worse, which is a contra sense.

    There are ways to overcome this issue but, again with another contra sense, as you have to spend more time rehabilitating an over decimated routed path by adding new WPTs.

    Every WPT over decimated is a less one degree of freedom in the generated curve, giving here the main reason for qT going in opposite direction of the optimum ETA.

    Sincerely hope that qT responsible persons take once for all this issue and, at least bring back the “old” decimating algorithm, the uniform “cutter”.

    João/psail
    Sail Fair.
  • 2018-12-25 08:55:38
    Re: GGR race final position.
    Board » Flag Officers
    Good morning SRC and all,

    Thank you for your reply &
    Merry Xmas.

    João/psail

    Sail Fair.
  • 2018-12-21 21:48:37
    GGR race final position.
    Board » Flag Officers
    Dear SRC and all,

    Good night.

    Only now saw the final leaderboard for this race and, as expected I've suffered a time penalty accordingly to the race rules.

    In fact, I've departed from Hobart before time - didn't respect the 90 minutes stopover. It's a fact.

    Anyhow, if you look to the attached pictures you'll understand better what happened and following actions from psail.

    After recognizing my mistake I immediately imposed a self-penalty, stopping the boat for more than 90 minutes.

    So the late SRC action doubles the previous token on due time, i.e., the self imposed penalty psail made.

    For the mentioned reasons I kindly ask SRC to review psail final race position.

    Thank you SRC.

    João/psail



    Sail Fair.
  • 2018-12-21 21:35:50
    Re: qtVlm thread
    Board » Technical Support
    maitai said @ 2018-12-14 15:07:13:
    No such problem here, what version are you using on which platform?

    @João/psail what other problems ?
    Replied today to Philippe.
    Latter I'll give further details.

    João/psail
    Sail Fair.
  • 2018-12-13 13:20:32
    Re: qtVlm thread
    Board » Technical Support
    Hi all.

    Andrew, if memory doesn't fail, the related problem came on the qT 5.8.2 version, hence the main reason for stop upgrading qT since 5.8.1 (there are other reasons).

    João/psail
    Sail Fair.
  • 2018-11-28 12:45:13
    Cookson 50 Polar data
    Board » Technical Discussion
    Hi all.

    Some time without coming here.

    Let’s see if the SOL community can bring some help on this subject.
    Please, I need a Cookson 50 Polar.

    The ones (#4) published on the link:

    http://jieter.github.io/orc-data/site/

    are limited as they stop at TWS = 20 Kts.

    The other reference I’ve found to the Cookson 50 Polar was on

    https://www.duo.uio.no/bitstream/handle/10852/12589/master_nils.pdf?sequence=1

    but has a poor graphic representation.

    So, if you have or know a location where I can extract one, pls give info.

    Thank you.

    João/psail
    Sail Fair.
  • 2018-06-25 06:48:09
    Re: qtVlm thread
    Board » Technical Support
    Viva Philippe

    Good morning.

    Thank you for info.
    Yes, it works as the former "B" command.

    Big Hug
    João/psail
    Sail Fair.

Races

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Current Races:

Azores Challenge 2025


Another almost forgotten race at SOL. For only the second time we will sail the Jester Azores Challenge route from 2016.
What is the Jester Challenge?
Every two years a group of singlehanded sailors heads for Plymouth to sail the Atlantic. The Jester Challenge is not a race in any way, shape or form, simply an opportunity for skippers to test their boats and their seagoing mettle in a supportive and non-competitive environment. Skippers can make stopovers in other ports or harbours if they so desire, and there is no stigma attached to retiring from the event. Each sailor takes full responsibility for him or herself, their boat and the equipment they carry. There are no entry fees and virtually no rules, although there are guidelines.
Our rules are a bit different and we have a 60ft trimaran at our disposal and we have 1200nm to cover. Let's see what our yachts and their skippers can do. We wonder what you will take on board?
Race #1898
INFO from brainaid.de
60ft_Trimaran PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking:
ARQ1 - ARCH - SUPSOL – SYC
Race starts: Mar 17th 17:00 Registration Open!
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Melbourne Osaka Cup Double-Handed Yacht Race 2025

Welcome once again to what these days is Sailonline’s almost annual virtual Melbourne to Osaka Yacht Race. In real life, this double-handed 5500 nm race between these two sister cities, one deep in the southern hemisphere, the other high in the northern hemisphere, is run every four to five years, and this year is such a year. So, this year’s online version is in sync with the Melbourne Osaka Cup 2025 organised by the Ocean Racing Club of Victoria (ORCV), and the Sandringham (SYC) and Osaka Hokko (OHYC) yacht clubs. We’ll be racing the well-known First 40, a popular size of boat which should be a good match for many of the boats entered in the real race. With the doldrums unavoidably lying across our course, you can expect to be at virtual sea for at least a month!
Race #1669
INFO by brainaid.de
First 40 Particulars
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: SYC
Race starts: Mar 16th 06:00 Registration Open!

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Channel Islands 500 Yacht Race 2025


Prepare for an exhilarating offshore challenge in the Channel Islands 500 Yacht Race! Collaborating with the Newport Harbor Yacht Club, Sailonline brings you a 500-nautical-mile test of skill, speed, and strategy. Starting in Santa Barbara, you’ll navigate between Santa Cruz Island and Santa Rosa Island, rounding three marks before finishing in San Diego. Our SOLers will be competing in their Melges 40s, a high-performance offshore racer designed by the Botin partnership. Who will conquer the Pacific and claim victory? Set your course and race for glory!
Race #1899
INFO by brainaid.de
Melges 40 PARTICULARS
NAM_AWIP WX Updates:
0245 / 0845 / 1445 / 2045
Ranking: SYC
Race starts: Mar 14th 22:30 Registration Open!
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Tristan da Cunha to Coronation Island 2025

The adventure continues as we embark on the second leg of the RWW series, racing from Tristan da Cunha to the remote and uninhabited Coronation Island, NO, Elephant Island. Nestled between the Scotia Sea and the Weddell Sea, both island were named by 19th C British whalers. Prepare for a thrilling journey through the Roaring Forties and Furious Fifties, where relentless winds and challenging seas will test the mettle of every crew. This leg will be sailed aboard the historically iconic Steinlager II and is part of the prestigious OCCH 2025 series. The RWW series ranking will be determined by each team's best 7 out of 8 race results, so every moment counts! Are you ready to face the ultimate test of skill and endurance?
PRIZE: SMPF
Race #1890
INFO by brainaid.de
Steinlager II PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: OCQ1 - RWW - OCCH - SUPSOL - SYC
RACE CLOSE: Friday,
March 21 at 2300 UTC.
Race starts: Mar 03rd 11:00 Registration Closed
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Sinbad by Balloon 2025 - Dondra to Toamasina


Above you see a stratospheric balloon, that if only we had gribs at that altitude would get blasted along quite rapidly and predictably. Alas we just have our SOL balloon that sails rather lower to the sea and that we have crossed the Atlantic in, west to east, last year for the first time in the southern hemisphere. So much fun was had by all, that this year we will attempt the Indian Ocean, but in four legs. Another great piece of fiction, the voyages of Sinbad By Balloon not magic carpet, although you may need a bit of magic to make any progress at times. Pack your wicker basket full for your first leg of at least 2300nm from Sri Lanka to Madagascar; it’s not a picnic hamper, you could be in the air for longer than you hoped!
Race #1883
INFOby brainaid.de
SOL Balloon PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: SYC - SBB
RACE CLOSE: Tuesday,
March 18 at 2300 UTC.
Race starts: Feb 05th 11:00 Registration Closed
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SYC Ranking

  1. Sailonline Yacht Club Member Patrick70119
  2. Sailonline Yacht Club Member WRmirekd
  3. Sailonline Yacht Club Member CriticalHippo
  4. Sailonline Yacht Club Member KaSToR
  5. Sailonline Yacht Club Member vida
  6. Sailonline Yacht Club Member rafa
  7. Sailonline Yacht Club Member FreyjaUSA
  8. Sailonline Yacht Club Member Kipper1258
  9. Sailonline Yacht Club Member bonknhoot
  10. Sailonline Yacht Club Member Sax747

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