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 » dc calculator

Posted by
Schakel


Users avatar

Posts
183
Registered at
2008-12-19 09:19:00
2010-05-14 22:47:54 - dc calculator
For those who may need it.

http://tinyurl.com/2u3op4o

For Windows (works on some Linux systems under Wine). Wrote it this evening after reading some comments on the chat. This is the only manual:

Enter the date and UTC time at which the delayed command is to be executed and press the 'Calculate delay' or 'Enter' button.
Enter the 'Delay' value in the SOL clients dc box, check the mark and hit SEND. Time is calculated from the moment you hit 'Calculate delay', so lower the value slightly to allow for the seconds it takes to enter and send the dc.

Time and date can be entered using numeric keypad with the decimal point key as the hh:mm:ss and dd-mm-yy separator. Also, values can be altered using arrow up and down. Use left and right arrow keys to navigate within the time and date fields. Use tab to navigate between fields and buttons.

Until now untested in time zones out of Europe. Disclaimers apply.

Have fun.
Philip
Posted by
RainbowChaser


Users avatar

Posts
2656
Registered at
2009-06-14 09:44:50
2010-05-14 22:54:20 - Re: dc calculator
Philip - this is really excellent! I was a little confused at first because the program opens by showing my computer-clock time but now I know to just ignore that and input the SOL date/time I need, the result is spot on!!

As I said in chat.. you are clever!!

Thank you for creating and sharing this.. I am sure many will find it very useful indeed (even those who now use calculator or pen/paper)!!
Posted by
simondo


Users avatar

Posts
42
Registered at
2008-10-12 06:01:08
2010-05-15 02:26:22 - Re: dc calculator
Excellent. Thanks very much for this. Works in Southern hemisphere - just have to remember to enter the time value as UTC. Top bloke.
Posted by
Schakel


Users avatar

Posts
183
Registered at
2008-12-19 09:19:00
2010-05-18 22:16:09 - Re: dc calculator
Updated version available at the same link:

http://tinyurl.com/2u3op4o

Have fun.

Philip
Posted by
Schakel


Users avatar

Posts
183
Registered at
2008-12-19 09:19:00
2010-05-20 11:10:55 - Re: dc calculator
Updates faster than you can say "There's Klingons on the starboard bow." The same link still works, even though it is now a zip file:

http://tinyurl.com/2u3op4o

Notes: Polars courtesy of brainaid. Unzip the archive keeping folder structure intact. All polars must be located in a directory called "Polars" and this directory must be a subdirectory of the directory in which the executable is stored.

How to obtain new polars suitable for this tool: Go to

http://sol.brainaid.de

and click on "Toolbox". Select a race in which you have already registered (important) and log in using your boat name and password (or try as sol). Click on the Polar button and on the next page click on "Detailed data as CSV". Save in Polar directory described above and you're good to go.

This version will only show boat speed after selecting a polar and entering true wind speed, direction and course. You can image that a lot more is possible, like vmg and vmc. Maybe next time.

As always, disclaimers apply.

Cheers,
Philip
Posted by
NZL_undercover


Users avatar

Posts
65
Registered at
2009-07-31 03:29:32
2010-06-09 08:32:30 - Re: dc calculator
Hi Philip,

The link doesnt appear to be working anymore. I have an earlier version but cant get into the latest file.

Cheers Undercover
Posted by
Schakel


Users avatar

Posts
183
Registered at
2008-12-19 09:19:00
2010-06-09 08:41:38 - Re: dc calculator
Hi UC,

The link ought to be working again, now. If ot doesn't, just let me know and I'll create another one.

Cheers,
Philip
Posted by
RainbowChaser


Users avatar

Posts
2656
Registered at
2009-06-14 09:44:50
2010-06-09 08:49:06 - Re: dc calculator
Schakel - I only use your calculator to work out time for DCs and its been very helpful... I would simply add a rider that the time given by the calculator needs to have 0.010-0.015 deducted before input to SOL to allow for the delay in commands executing in the SOL server!

I used it for my practice race start last night and... after only three attempts got myself a start at 20:00:00 exactly for almost the first time ever hehehe

Posted by
NZL_undercover


Users avatar

Posts
65
Registered at
2009-07-31 03:29:32
2010-06-09 09:08:00 - Re: dc calculator
Cheers Philip all good now :)

Please login to post a reply.

Races

Next Race: 00d 00h 00m

Current Races:

New Ice Age 2026 - Browerville to Longyearbyen


Our 2026 long-distance ice-boating challenge continues with a second race in Arctic waters, now from Browerville, where we arrived less than a month ago, continuing east, back to Svalbard’s Longyearbyen, leaving Canada’s Ellesmere Island to port and Denmark’s Greenland to starboard. It’s about 2500nm, which, if there’s wind at all, should, well-wrapped in your DN-cockpits, not take you more than a day or three, thus to complete your first (of several) online circumnavigation of the planet of 2026!
Race #1969
INFOby brainaid.de
DN PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: NIA - SYC
Race starts: Feb 19th 07:00 Registration Open!
▶ Flash
GO TO RACE

Doha Basra TIMED Race 2026

Welcome to Kuwait for a short 78 nm TIMED race from the port of Doha (not to be confused with Doha, Qatar) to Basra, Iraq. Jazirat Light on Auha Island is the only mark to observe, leaving it to port. The Beneteau First 40.7v2 racer-cruiser is our ride this month. 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 #2008
INFOby brainaid.de
First 40.7v2 Particulars
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking:
TRQ1 - TRCH - SYC
RACE CLOSE: Saturday,
28 February at 23:00 UTC
Race starts: Feb 15th 12:00 Registration Open!
▶ Flash
GO TO RACE

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 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 CLOSE: Saturday,
February 21 at 2300 UTC.
Race starts: Feb 06th 18:00 Registration Closed
▶ 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 CLOSE: Tuesday,
February 24 at 2300 UTC.
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 rumskib
  5. Sailonline Yacht Club Member rafa
  6. Sailonline Yacht Club Member Sax747
  7. Sailonline Yacht Club Member vida
  8. Sailonline Yacht Club Member CollegeFund
  9. Sailonline Yacht Club Member bonknhoot
  10. Sailonline Yacht Club Member BRENTGRAY

View full list

Series

Mobile Client

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

The mobile client