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 » Leg 4

Dear Sirs,
How come boats can sail right through the land at 107.75 and 3.00 at one end and 107.28 and 2.99 at the other end.

I altered course to avoid what looks like land,i.e. an island, as I had seen it to late.

Others and lots of them just kept going.
Carnaby Street and Juju_GB are two boats that did that.

Is there an explanation and is okay to do?
Cheers,
Peter
User ID Tangerine
As I understand it, it has to do with the interval between updates. Apparently, the boats sort of jump ahead each update. As a result, if the circumstances are just right boats may appear to jump over narrow bits of land.

Philip
Yes Schakel is correct there.

Boats jump ahead between updates and each time a boat has jumped a land hit check is done. If you are lucky and clear the land in the mean time, real small stretches of land may be cleared without stopping. You take a risk by doing this, if you do jump at land your boat will stop.

This is done to reduce server loads and most of the time the boats that are jumping are not very active in the race.

I hope this helps, Jeroen
I am a ex-admin of SOL who joins in from time to time.
Jeroen, is server load or boat activity also the reason that some boats are shown as dots?
If im correct we did that to reduce the clutter of the number of boats we are running now. And might reduce a bit of overhead too.

I am a ex-admin of SOL who joins in from time to time.

Please login to post a reply.

Races

Next Race: 00d 00h 00m


Current Races:

SSANZ Round North Island Race 2026 - Leg 3

Leg Three of our Round North Island Series, in partnership with SSANZ, keeps the pressure on! From Cook Strait, the fleet turns north for a 187 nautical mile passage up the east coast to Napier. It may look like a quick overnighter, but shifting coastal winds and the ever-lively Cook Strait demand sharp focus. In our responsive Sun Fast 3600s, a proven short-handed racer and powerful downwind performer, tactical decisions and precise timing will make all the difference!

The start time for this race may change at short notice to align with the real race. The confirmed start date and time will be announced via an in-race “L” flag message — Please monitor race communications closely.
Race #2013
INFO by brainaid.de
Sun Fast 3600 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: RNI - SUPBUD - SYC
Race starts: Mar 08th 22:00 Registration Open!
▶ Flash
GO TO RACE

Dyer Dhow Derby 2026


Most winter weekends, SOLer wsguerin and his friends at the Mamaroneck Frostbite Association venture forth on Long Island Sound to race Dyer Dhows, originally designed as WWII tenders. Indestructible little boats, great comradeship and serious short sharp races of 10 to 20 minutes duration. Sailonline now invites you to experience the joys of the Dhow in winter, virtually, by way of a slightly longer 14nm race: from Mamaroneck to Execution Rocks, over to the Gong Buoy and back to Mamaroneck. And if the wind pipes up to 20kn and beyond, you'll find SOL's customized polar will plane, rather than nosedive!
Race #2017
INFO by brainaid.de
Dyer Dhow PARTICULARS
NAM_AWIP WX Updates:
0245 / 0845 / 1445 / 2045
Ranking: SPQ1 - SPCH - SYC
RACE CLOSE: Wednesday,
March 11 at 2300 UTC.
Race starts: Mar 07th 13:00 Registration Open!
▶ Flash
GO TO RACE

South China Sea Race 2026


Welcome all to the South China Sea and a virtual chase in Cookson 50’s of the Rolex South China Sea fleet, racing 650nm – as the local red-footed booby flies – from Hong Kong to Subic Bay on the southern tip of The Philippines’ Luzon Island. Chances are it will be a fast downwind ride, so see how you can keep up with the real-life fleet which we hope to be able to follow on our monitors.
Race #2016
INFOby brainaid.de
Cookson 50 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: SUPBUD - SYC
RACE CLOSE: Saturday,
March 14 at 2300 UTC.
Race starts: Mar 04th 03:20 Registration Open!
▶ Flash
GO TO RACE

SSANZ Round North Island Race 2026 - Leg 2

Leg Two of our Round North Island Series is where the real challenge begins. After Mangonui, our SOLers face a demanding 491nm passage around the top of the North Island and down the rugged west coast toward Cook Strait. Long miles, exposed waters, and relentless tactical choices will test every SOLer. In our powerful Sun Fast 3600s, a proven short-handed performer and true downwind flyer, endurance, timing, and smart routing will be key to success!

The start time for this race may change at short notice to align with the real race. The confirmed start date and time will be announced via an in-race “L” flag message — Please monitor race communications closely.
Race #2012
INFO by brainaid.de
Sun Fast 3600 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: RNI - SUPBUD - SYC
RACE CLOSE: Monday,
March 9 at 2300 UTC.
Race starts: Mar 02nd 21:00 Registration Closed
▶ Flash
GO TO RACE

Iceland to the Falklands 2026

Welcome to an all-new route, the first of three Round the 'Old World' of Europe, Africa, Australia and Asia. To give each leg of the ROW a bit of length we'll try to hug the coasts as little as possible, so starting in Iceland our first leg of the series, which will also be the final leg of our Quarter 1 Ocean Championships takes us 7200nm to the Falklands, the full length of the Atlantic end to end. To make sure we'll get it done within the month we'll be sailing our Maxi Trimaran.
Race #2010
INFO by brainaid.de
Maxi Trimaran PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: OCQ1 - ROW - OCCH - SYC
Race starts: Mar 02nd 11:00 Registration Open!
▶ Flash
GO TO RACE

San Diego to Puerto Vallarta 2026

Welcome to California! Established in 1953 this 1000-mile run from San Diego to Puerto Vallarta on the Mexican Riviera has become a tradition and online as well the tradition strengthens with this the fourth time Sailonline is making the race available to virtual sailors. Let's see how our virtual SC70s perform against the real fleet!
Race #2015
INFO by brainaid.de
Santa Cruz 70 Particulars
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: SUPBUD - SYC
RACE CLOSE: Friday,
March 13 at 2300 UTC.
Race starts: Feb 28th 20:00 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 vida
  4. Sailonline Yacht Club Member rafa
  5. Sailonline Yacht Club Member rumskib
  6. Sailonline Yacht Club Member CriticalHippo
  7. Sailonline Yacht Club Member Sax747
  8. Sailonline Yacht Club Member CollegeFund
  9. Sailonline Yacht Club Member Panpyc
  10. Sailonline Yacht Club Member sassy63

View full list

Series

Mobile Client

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

The mobile client