Facebook

Login

Support Sailonline

If you haven't already - join the SAILONLINE YACHT CLUB!

Please also consider making a donation - all amounts are greatly appreciated!

Board » Technical Support » 1st Marker on the prediction line

Posted by
Woody1


Users avatar

Posts
2
Registered at
2008-10-11 06:03:26
2009-01-11 08:34:43 - 1st Marker on the prediction line
There are 7 marks on the prediction line, 6 of them are at 1 hour prediction points, what is the first point? This point is close to the boat. Is this a point at which when it is past a mark or headland you can safely send a command without rounding too early or hitting the headland.
Thanks
Le Riche Coetzer
Hoopstad South Africa
Posted by
ESEA


Users avatar

Posts
20
Registered at
2008-01-18 11:31:37
2009-01-11 08:36:39 - Re: 1st Marker on the prediction line
OOps! That was me logged in as woody1.
Take it "ESEA" go sailing
Posted by
kalle


Users avatar

Posts
413
Registered at
2007-06-01 09:58:04
2009-01-11 09:02:56 - Re: 1st Marker on the prediction line
It's a little bug that will be fixed very soon! The first dot is approx 1 minute from the boat.
Posted by
ESEA


Users avatar

Posts
20
Registered at
2008-01-18 11:31:37
2009-01-11 10:24:39 - Re: 1st Marker on the prediction line
Is there any way of knowing when to execute a turn around a headland or mark without cutting short or hitting the land?
Maybe the extra mark could be kept and placed at the point at which the command will be executed if entered immediately after the last update. In other words if this mark is beyond the mark/headland you can safely enter your turn command.
Take it "ESEA" go sailing
Posted by
kalle


Users avatar

Posts
413
Registered at
2007-06-01 09:58:04
2009-01-11 10:42:15 - Re: 1st Marker on the prediction line
First, we are working on implementing a "smart" predictor that will actually take the currect forecast in account. However, since there is no way for us to tell what data a NEW will have, we can never make anything more that a "prediction", so we can never make a guarantee that a boat will arrive at a certain point at a certain time.

Woa, things got a little complicated...please ask if you need a clarification.
Posted by
ESEA


Users avatar

Posts
20
Registered at
2008-01-18 11:31:37
2009-01-11 11:25:59 - Re: 1st Marker on the prediction line
What you are talking about is great it is a lot better than having nothing. What I am talking about is is more in the real time scenario. ....coming up to the mark .....ready steady ....hit send... aaah sheeees .....too early!@#&%!
Now if that mark I talked about is placed (like the 1hr ones)ahead of your boat at one interval of update increment, it would be relatively safe to send a command if it has reached the target
Take it "ESEA" go sailing
Posted by
kalle


Users avatar

Posts
413
Registered at
2007-06-01 09:58:04
2009-01-11 11:28:53 - Re: 1st Marker on the prediction line
I think when approaching the mark it is always the compromise between being safe and cutting it tight. We also have an update to the server side planned (ETA not known) that will increase the update times, that will also help.

Please login to post a reply.

Races

Next Race: 00d 00h 00m

Current Races:

San Diego Islands Race 2026


Sailonline is proud to once again partner with the San Diego Yacht Club for the annual Islands Race! This iconic offshore challenge spans approximately 140 nautical miles, starting in Long Beach, rounding the Catalina Islands, and finishing in San Diego. Shifting coastal winds and tactical island roundings will test every sailor’s judgment and nerve.

This year, our SOLers will race the Ker 40, a proven high-performance design by Jason Ker and built by McConaghy Boats. Fast, responsive, and demanding, the Ker 40 rewards precision and smart strategy. The competition will be tight. Every decision will count. See you on the start line!
Race #2009
INFO by brainaid.de
Ker 40 PARTICULARS
NAM_AWIP WX Updates:
0245 / 0845 / 1445 / 2045
Ranking:
SUPBUD - SYC
Race starts: Feb 13th 20:00 Registration Open!
▶ Flash
GO TO RACE

Los Roques 2026


It's winter but not in the Caribbean, so welcome to Venezuela's Islas Los Roques archipelago for a 20nm sprint through these beautiful islands. Take care with your mutinous crew, they may be tempted to BBQ and snorkel!
Race #2007
INFO by brainaid.de
SOTO 30 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
RANKING:
SPQ1 - SPCH - SYC
RACE CLOSE: Wednesday,
February 11 at 2300 UTC.
Race starts: Feb 07th 13:00 Registration Closed
▶ Flash
GO TO RACE

Cross the Convergence 2026 - Samoa to Hawaii


The second race of our new series of ocean voyages across the World’s convergence zones, takes us northward again up the Pacific Ocean, now from Samoa at 13.5 degrees South, across the Equator to Hawaii, famed for its breaking surf and active volcanoes, on the edge of the Tropic of Cancer at 19.5 degrees North. It’s 2300nm, so we’ll take our very steady Steinlager II. Race #1982
INFOby brainaid.de
Steinlager IIPARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: CCZ - SYC
Race starts: Feb 06th 18:00 Registration Open!
▶ Flash
GO TO RACE

Beketov by Balloon 2026 - In Siberia


Way-back-when France and England, and Spain as well, were squabbling about who should control what of North America, only to lose the most of it to their own insurging colonists, their eastern European neighbour empire, Russia, was quietly assimilating vast, thinly nomadically populated territory of its own – Siberia! Amongst the many explorers and adventurers that served Russia so well in these conquests was the Cossack hetman Pyotr Beketov. Let’s pretend we’re he and eschewing horseback, let’s travel by balloon from Yekaterinberg to Krasnoyarsk – just a short 2000km (1100nm) section of the Trans-Siberian Express’ 9289km!
Race #1972
INFOby brainaid.de
SOL Balloon PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: BOL - SYC
Race starts: Feb 03rd 13:00 Registration Closed
▶ Flash
GO TO RACE

West Papua to Oregon 2026

Our next race in our Ocean Championships is the first of a series of great natural migrations we will track in 2026. The leatherback turtle is the most widely distributed marine reptile on planet Earth, and chooses to breed in warm tropical waters, but prefers to forage in more temperate habitats, travelling thousands and thousands of miles effortlessly annually to maintain this way of life. Our race will follow one of the typical trips of this turtle, from breeding grounds in the seas off West Papua to the coast of Oregon. It’s only 5900nm, so to keep up, but in comfort, we’ll follow in our Gunboat 90.
Race #2006
INFO by brainaid.de
GB 90 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: OCQ1 - OCCH - MIG - SYC
Race starts: Feb 02nd 11:00 Registration Closed
▶ Flash
GO TO RACE

Go to race archive

SYC Ranking

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

View full list

Series

Mobile Client

SYC members have the benefit of access to our mobile/lightweight web client!

The mobile client