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 » DCs & The SOL Clock

Posted by
bonknhoot


Users avatar

Posts
109
Registered at
2013-08-06 21:35:15
2015-07-30 08:40:13 - DCs & The SOL Clock
Six Easy Pieces
The arcane chronometry of SOL
(with thanks to Richard P Feynman)
1. All commands, whether entered via sailonline.org or sol.brainaid.ie or the Zappe android app – delayed as well as immediate (but never the less slightly delayed) – are executed via the DC Editor.
2. There is full synchronicity between the DC Editors seen on sailonline.org, on sol.brainaid.ie and on the Zappe android app. You are looking at the same thing in each case.
3. The commands execute at the NET Times registered in the DC editor; always.
4. If you are using the hh:mm:ss clock on your pc to check and count time, this clock may be out of sync with NET Time; go to http://www.timesynctool.com/ to find out how to remedy this.
5. Only the commands entered (or corrected) via sol.brainaid.de are always WYSIWYG; the commands entered (or corrected) via sailonline.org generally are, but not always; the commands entered via the Zappe app never are.
6. These discrepancies can change from session to session, but are constant during a session; establish what it is, do the maths and enter an adjusted time to get the time you want.
Clipping along
Posted by
javakeda


Users avatar

Posts
73
Registered at
2013-03-01 03:18:22
2015-07-30 11:04:47 - Re: DCs & The SOL Clock
In the chat on this subject, here is what I posted:

Kip: Getting the PC synched with internet time is step #1. Once I have that, I'll bring up a clock on my PC that displays hh:mm:ss and watch the minute turn over on both the PC clock and the SOL client.

I want the PC clock and the SOL client to turn over on the minute with a second or three of each other.

If they are not together, it's time to re-synch the PC time and reload the SOL client.

Once the time is within 'tolereance' levels, I'll use the 'delay for' dot on the predictor line and bracket the point at which I want to turn -- that is, set 2 DCs ... one early and one late.

Then, bracket again at a different 'delay for' setting. By refreshing the DC tab in the SOL client, you can see the different 'early' and 'late' times generated by following the orange dot.

But THEN, I go with Dingo's approach. I'll pick a DC time from the list of 'late' DCs that I can use as a backup if I don't make it to the PC for the rounding. But if I really care, I'll get up and stay hands-on.
Posted by
javakeda


Users avatar

Posts
73
Registered at
2013-03-01 03:18:22
2015-07-30 11:12:06 - Re: DCs & The SOL Clock
A key point that I did NOT make clear in the chat is that setting three or more early/late DC pairs are needed to start seeing a pattern for a particular rounding.

That is, I'll set an early/late pair for {let's say} 40 minutes out, for 38 minutes out, and for 36 minutes out ... then go to the DC tab in the SOL client, refresh, and look at the early/late pattern. If the pattern looks good, I'll pick a time from the 'late' column and set the DC. If the pattern still looks random, I'll set some more early/late pairs and try again.

But this is just to get a 'safe' DC -- one that will allow me to get another 30 minutes sleep. It won't get me around a mark or past a headland as quickly as hand-sailing would.

--- Last Edited by javakeda at 2015-07-30 11:13:12 ---

Please login to post a reply.

Races

Next Race: 00d 00h 00m

Current Races:

Regata dell’Accademia Navale 2026

Welcome to Sailonline’s partnership with the City of Livorno (Leghorn say the English) in cooperation with the local yacht clubs and the Italian Navy, offering all the online opportunity to race the famous Regata dell’Accademia Navale - 630nm in length. Starting and finishing in Livorno, this year the race takes you the length and breadth of the Tyrrhenian Sea via little Mortorio (Mortoriotto) off Sardinia to Capri and home again to Livorno. This race also counts towards Sailonline’s Magical Mediterranean Series and the SuperBuddy title. Online, you will be sailing a Mini 6.50, to give you a match against several of the real-life entrants, which you will be able to track on-screen!
Race #2020
INFO by brainaid.de
Mini 6.50 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: MED - SUPBUD - SYC
Race starts: Apr 25th 10:00 Registration Open!

▶ Flash
GO TO RACE

Guess Gotland TIMED Race 2026

The Guess about Gotland is do we helm our First 27 solo east or west of the island in this 140 nm race. This is a TIMEDrace so you may RE-REGISTER HEREto try again after finishing a run. You will have 13 days and 11 hours to test your skill and decision making after the race opens.
Race #2030
INFOby brainaid.de
First 27 solo Particulars
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking:
TRQ2 - TRCH - SYC
RACE CLOSE: Saturday,
2 May at 23:00 UTC
Race starts: Apr 19th 12:00 Registration Open!
▶ Flash
GO TO RACE

Rommel by Balloon 2026 - Through the Sahara


Generalfeldmarschall Johannes Erwin Eugen Rommel may have been that chivalrous, gallant tank commander of legend, led astray by the Prussian military traditions of loyalty and chain of command, but one thing he wasn’t, was mad. So, let’s do it anyway – not stick to the coast and the battle for logistical superiority – but depart the oases of Siwa south west into the desert for Agadez and its uranium. And let’s go by balloon, it’s only 2500km (1250nm)!
Race #1973
INFOby brainaid.de
SOL Balloon PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: BOL - SYC
RACE CLOSE: Sunday,
May 3 at 2300 UTC.
Race starts: Apr 07th 13:00 Registration Closed
▶ Flash
GO TO RACE

Falklands to Tasmania 2026

Welcome to yet another all-new route. This next race is part of our Ocean Championship as well as the ROW series. Falklands to Tasmania, is like last year's island to island. It’s one of the longer ones 6400nm, more than half way around the world (and the Antarctica). It starts the 2026 OCQ2, and will be sailed in our Steinlager 2, contrary to prior notice.
Race #2021
INFO by brainaid.de
Steinlager 2 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: OCQ2 - ROW - OCCH - SYC
RACE CLOSE: Thursday,
May 7 at 2300 UTC.
Race starts: Apr 06th 11:00 Registration Closed
▶ Flash
GO TO RACE

Go to race archive

SYC Ranking

  1. Sailonline Yacht Club Member WRmirekd
  2. Sailonline Yacht Club Member KaSToR
  3. Sailonline Yacht Club Member CriticalHippo
  4. Sailonline Yacht Club Member rafa
  5. Sailonline Yacht Club Member Panpyc
  6. Sailonline Yacht Club Member rumskib
  7. Sailonline Yacht Club Member CollegeFund
  8. Sailonline Yacht Club Member sassy63
  9. Sailonline Yacht Club Member Sax747
  10. Sailonline Yacht Club Member bonknhoot

View full list

Series

Mobile Client

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

The mobile client