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 » channel island race

Page: 1 2 Next

Posted by
goblin


Users avatar

Posts
53
Registered at
2008-12-25 10:23:02
2010-01-21 06:36:40 - channel island race
in channel island race I returned back from indian rocak as some others did.. but it seems like programm does not except my NE crossing! any idea why?
regards
Posted by
Schakel


Users avatar

Posts
183
Registered at
2008-12-19 09:19:00
2010-01-21 07:15:41 - Re: channel island race
If a marker says Pass NE you have to at least hit a certain latitude to the north and a certain lontitude to the east of it. Apparently, you didn't touch upon the lontitude. Do not turn back until the marker says "Rounded" to indicate you have indeed rounded it.

HTH, HAND,
Philip

Posted by
goblin


Users avatar

Posts
53
Registered at
2008-12-25 10:23:02
2010-01-21 07:59:43 - Re: channel island race
how does the marker syas you rounded? where do you see that notification?
Posted by
goblin


Users avatar

Posts
53
Registered at
2008-12-25 10:23:02
2010-01-21 08:01:57 - Re: channel island race
when you look at the map I definetly did cross to NE part of the mark.. I have difficulties to understand
Posted by
Schakel


Users avatar

Posts
183
Registered at
2008-12-19 09:19:00
2010-01-21 08:06:13 - Re: channel island race
The marker in the web client will show when the marker is rounded.

See attached jpeg.

HTH, HAND,
Philip
Attachments
Posted by
goblin


Users avatar

Posts
53
Registered at
2008-12-25 10:23:02
2010-01-21 08:34:46 - Re: channel island race
I did not know that Philip, thank you for the info. when I look at the figures my turning point is 118.524 E which is almost 0.5 m east of the mark.. do you know why system does not read it as it is crossed?
rgds
aydin
Posted by
Schakel


Users avatar

Posts
183
Registered at
2008-12-19 09:19:00
2010-01-21 10:51:14 - Re: channel island race
I don't really know if this is how it really works and I am not sure if can explain it properly, but in my mind I approach it like this: in this case, the mark is a 90° angle from a compass course of rougly 270° going to 180°. I think the trigger for passing the mark is an imaginary line at roughly 45°, so the further to the north you are, the further east you have to go to trigger it.

Like I said, I don't know if that is true, but that's the way I think of it. In the image I posted earlier I was on dc, so I made sure I had some margin.

Good luck,
Philip

Posted by
goblin


Users avatar

Posts
53
Registered at
2008-12-25 10:23:02
2010-01-21 11:15:30 - Re: channel island race
may be guys behind the scene can chechk and explain to me:) ı fell I cross to NE direction..
regards
Posted by
goblin


Users avatar

Posts
53
Registered at
2008-12-25 10:23:02
2010-01-21 17:02:17 - Re: channel island race
Jakob??? any answer?
regards
aydin
Posted by
Incognito


Users avatar

Posts
183
Registered at
2008-12-06 13:43:52
2010-01-21 18:16:05 - Re: channel island race
Schakel is basically right.

Let's work with an example. You are about to pass the waypoint above in the attached picture.

The angle between that waypoint and the previous one (below left) is 240°. The angle between that waypoint and the next one (below right) is 170°.

To pass the current waypoint, you have to cross the imaginary line (shown in red) that bisects these two angles.

In our example, we could calculate the bisector as follows:

Total angle between the two routes:
(360°-240°)+(170°-0°) = 290°

Bisector:
240° + 290°/2 - 360° = 240° + 145° - 360° = 25° or
170° - 290°/2 = 170° - 145° = 25°

Regards,

Francois
Attachments

Page: 1 2 Next

Please login to post a reply.

Races

Next Race: 00d 00h 00m

Current Races:

Red Eye - Myth of Malham 2025

In 1947, Hugh McLean & Sons of Gourock, Scotland built a radical racing yacht for John Illingworth, soon-to-be Commodore of the RORC, to a design by Laurent Giles. With a masthead rig, giving her ‘free’ sail area per the rules of the time, and short overhangs reducing pitching, Myth of Malham went on to win The Fastnet that year and again in 1949, and to compete in numerous Admiral's Cups. In 1958, in honour of the yacht, the Myth of Malham race was conceived - a mini-Fastnet to the first lighthouse on a rock west of Cowes, Eddystone, rather than the second, to be held in non-Fastnet years. IRL this year it has been raced already, but this stops us not from “Red Eye” racing its online 230nm in Fareast 31Rs, leaving how to deal with the Isle of Wight open to your own discretion.
Race #1847
INFOby brainaid.de
Fareast 31R PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: SYC - RED
Race starts: Aug 25th 12:00 Registration Open!
▶ Flash
GO TO RACE

Africa by Sea 2025 - Maputo to Mogadishu


The fifth leg of our exploration of Africa By Sea takes us north along the length of the Continent’s succulent sub-tropical and tropical Indian Ocean coast. Much fought over by traders and colonists both well-before and after a Portuguese expedition under the command of Vasco da Gama first sailed there from Europe back in the 16th century, it is yet to be properly explored as a yachting destination. With plenty of islands off- and inshore, small and very large, there is much to interrupt your 1900nm voyage and visit in your Swan 65, from Maputo to Mogadishu! Race #1858
INFOby brainaid.de
Swan 65 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: SYC - ABS
Race starts: Aug 20th 17:00 Registration Open!
▶ Flash
GO TO RACE

Go to race archive

SYC Ranking

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

View full list

Series

Mobile Client

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

The mobile client