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 » General Discussion » Compute Optimal VMC and more

Page: 1 2 3 Next

I posted a new tool to compute optimal VMG/VMC with a few options, read more about it here
Is an Adobe AIR app, so runs on Linux/Mac
Screenshot:

Enjoy!
I help develop the client interface for the best online ocean racing sim there is... __/)/)_/)__
I am in awe of your abilities! My boss, however, thinks I should spend more time working and less time playing with little boats!
I hope, Aaron doesn't have a boss :-P

Awesome work, AG, soon I will just sit there and stare on this tool ... :-)
Compliments for this stand alone cross plarform tool. Does the possibility exist to also send navigation instructions to the logged in boat ?
None so blind
Agage' I don't understand the theory behind your new tool---Do you care to conduct a seminar on the care and feeding of such an exotic 'animal'?
If it breaks, it's not strong enough--if it doesn't, it's too heavy.
A very nice tool Aaron,
never again I've to import polar.csv into excel :)
Some minor bugs are onboard:
if the browser looses the connection (red time display) the angle tool seems to loose it too, and doesn't come back (sometimes).
Switching between SWR6 and Hiroshima doesn't work, the tool stays at the first race logged in.
I often use a percentage of VMC/VMG opt, like 95% of VMC opt to stbd. Would it be possible to add this feature?
ciao
Bernd (K3)


--- Zuletzt bearbeitet von K3 (Bernd) am 2012-05-06 23:25:21 ---
Awesome work, AG, soon I will just sit there and stare on this tool ... :-)
=========================
I should have made it prettier huh?
K3:
Not sure I would call those bugs as such - if your Browser loses connectivity then is reasonable that other software, especially connected to the same server should also lose it. I didn't realise you could't load 2 instances of the program for 2 races - I will see what I can do about multiple race support.
I originally intended to have it as a Flash application in your Browser, where you can simply load 2 versions - but there is issue with getting the data from SOL when the app is online (works fine running off local machine though).

Re the % idea - I'm not sure I get what you mean. What does it mean to sail at 95% VMC - for each tack there will be 2 headings that both have a VMC = 0.95*OptimumVMC. How should it be automated? User inputs 'high or low' or something? And do you mean 'At a heading where my VMC is 95% of the max' or 'Within 5% of the heading'?

In a way, I would rather keep things simple - there are many such small extra things that can be included - and soon the UI is somewhat bloated or overly complicated for how it will be used 95% of the time.
For 'X% VMC' it might be possible and easier just to have mental 'rules' like 'Every degree off I sail is 2% lost VMC' or something?

But of course, I can look into a specific feature if it would benefit a reasonable % of the users.
I modified it to handle multiple races at once. The page on the blog has been updated accordingly.
If you already have it installed, the installer will prompt you to update to the new version.
Of course, the original version will continue to work.
Sorry, obviously that was me last 3 posts...
I help develop the client interface for the best online ocean racing sim there is... __/)/)_/)__

Page: 1 2 3 Next

Please login to post a reply.

Races

Next Race: 00d 00h 00m


Current Races:

Isle of Mull TIMED Race 2026

Welcome to the west coast of Scotland for an 80 nm race around the Isle of Mull. Mull is home to castles, distilleries, and the Highland Games. The race begins just north of Oban in the shadow of Dunstaffnage Castle and after rounding the island finishes down the coast at Crinan. The Twister 28 with its classic long keel is the boat for this race.
This is a TIMEDrace so you may RE-REGISTER HEREto try again after finishing a run. You will have two weeks to test your skill and decision making after the race opens.
Race #2057
INFOby brainaid.de
PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking:
TRQ3 - TRCH - SYC
RACE CLOSE: Saturday,
26 September at 23:00 UTC
Race starts: Sep 13th 12:00 Registration will open soon
▶ Flash
GO TO RACE

Cross the Convergence 2026 - Cocos to Sagar Island


Kapil Muni, incarnation of Lord Vishnu, founder of the Samkhya school of philosophy, disturbed from his meditation, in his wrath reduced the 60,000 sons of Sagar to ashes, as they dug the earth to retrieve the sacrificial horse that Lord Indra, the king of the Gods, stole off Sagar, thus creating the Sagara (ocean). Aeons later, Bhagiratha, a descendant of Sagara, asked Ganga to cleanse the ashes of the 60,000 princes, and her resultant torrential fall from heaven created the great river and where it met the ocean, the princes’ souls were washed and raised to heaven and Gangasagar (Sagar Island) was formed. So, let us join the pilgrimages to Kapi Muni’s Temple (see above) and race 2400nm from Cocos Island deep in the Sagara thence, in rather rapid Rapido 60s.
Race #1987
INFOby brainaid.de
Rapido 60PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: CCZ - SYC
Race starts: Sep 11th 18:00 Registration Open!
▶ Flash
GO TO RACE

The Vineyard Race 2026


For the 16th consecutive year, our SOLers are invited to tackle this iconic 250nm overnighter. The classic route charges out through the sound, leaves Buzzards Bay Light to starboard, rounds Block Island to starboard, and heads home.

This year's weapon of choice is the Beneteau First 47.7. A proven performer since its 2012 SOL debut, this Farr-designed cruiser/racer excels at leading real and virtual handicap fleets. Success will demand sharp tactical navigation, so watch the polars closely to conquer the sound's shifting winds!
Race #2056
INFO by brainaid.de
First 47.7 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: SUPBUD - SYC
RACE CLOSE: Sunday,
September 13 at 2300 UTC.
Race starts: Sep 04th 17:05 Registration Closed
▶ Flash
GO TO RACE

Shearwater - Rio de la Plata to Irish Sea 2026

Welcome to the fourth leg of our MIG series. This time we're racing the Sooty Shearwater on their migration from the breeding grounds in South America to the northern Atlantic. This is also part of our Ocean Championship, and as such the third race of OCQ3 2026. This race will be sailed in our Gunboat 90. Race #2055
INFO by brainaid.de
GunBoat 90 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking:
OCQ3 - OCCH - SYC - MIG
Race starts: Sep 02nd 11:00 Registration Closed
▶ Flash
GO TO RACE

Go to race archive

SYC Ranking

  1. Sailonline Yacht Club Member CriticalHippo
  2. Sailonline Yacht Club Member KaSToR
  3. Sailonline Yacht Club Member WRmirekd
  4. Sailonline Yacht Club Member rafa
  5. Sailonline Yacht Club Member Panpyc
  6. Sailonline Yacht Club Member cdhinman
  7. Sailonline Yacht Club Member rthinman
  8. Sailonline Yacht Club Member BRENTGRAY
  9. Sailonline Yacht Club Member Sax747
  10. Sailonline Yacht Club Member vida

View full list

Series

Mobile Client

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

The mobile client