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

Posted by
AGage


Users avatar

Posts
411
Registered at
2008-12-27 10:31:57
2012-05-03 15:07:34 - Compute Optimal VMC and more
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... __/)/)_/)__
Posted by
BER_Baggus


Users avatar

Posts
70
Registered at
2008-12-26 18:46:10
2012-05-04 02:05:28 - Re: Compute Optimal VMC and more
I am in awe of your abilities! My boss, however, thinks I should spend more time working and less time playing with little boats!
Posted by
StuArt


Users avatar

Posts
118
Registered at
2008-11-15 22:03:54
2012-05-04 08:59:22 - Re: Compute Optimal VMC and more
I hope, Aaron doesn't have a boss :-P

Awesome work, AG, soon I will just sit there and stare on this tool ... :-)
Posted by
A2


Users avatar

Posts
347
Registered at
2009-10-26 00:39:42
2012-05-05 03:07:48 - Re: Compute Optimal VMC and more
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
Posted by
Rod


Users avatar

Posts
392
Registered at
2010-06-24 22:30:48
2012-05-06 00:51:59 - Re: Compute Optimal VMC and more
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.
Posted by
K3 (Bernd)


Users avatar

Posts
130
Registered at
2008-08-25 12:34:07
2012-05-06 23:19:40 - Re: Compute Optimal VMC and more
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 ---
Posted by
sol


Users avatar

Posts
297
Registered at
2008-08-14 11:08:14
2012-05-09 02:47:32 - Re: Compute Optimal VMC and more
StuArt said @ 2012-05-04 08:59:22:
Awesome work, AG, soon I will just sit there and stare on this tool ... :-)
=========================
I should have made it prettier huh?
Posted by
sol


Users avatar

Posts
297
Registered at
2008-08-14 11:08:14
2012-05-09 05:46:07 - Re: Compute Optimal VMC and more
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.
Posted by
sol


Users avatar

Posts
297
Registered at
2008-08-14 11:08:14
2012-05-09 06:37:05 - Re: Compute Optimal VMC and more
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.
Posted by
AGage


Users avatar

Posts
411
Registered at
2008-12-27 10:31:57
2012-05-09 09:47:51 - Re: Compute Optimal VMC and more
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:

Regata dell’Accademia Navale 2025

Welcome to Sailonline’s first partnership with the City of Livorno, in cooperation with the local yacht clubs and the Italian Navy, to offer you the online opportunity to race the Regata dell’Accademia Navale. 630nm in length, starting and finishing in Livorno, the race takes you the length and breadth of the Tyrrhenian Sea via Porto Cervo and Capri. Online, you will be sailing a Class 40, which should keep you well in with the top of the real-life fleet which we will be tracking on screen!
Race #1902
INFO by brainaid.de
Class 40 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: SYC
Race starts: Apr 26th 10:00 Registration Open!

▶ Flash
GO TO RACE

Gulf of St Lawrence 2025


The Gulf of St. Lawrence, with one of the largest and deepest estuaries in the world, will be the site of a completely new race in SOL. Our Melges 40 will take us 950 nm from Bathurst in Baie des Chaleurs around the islands of Anticosti, Pelee and Prince Edward admiring beautiful landscapes along the way. Fair winds.
Race #1910
INFO from brainaid.de
Melges 40 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking:
ARQ2 - ARCH - SUPSOL – SYC
Race starts: Apr 21st 17:00 Registration Open!
▶ Flash
GO TO RACE

Transat à Deux 2025

Above you see a single-handed sailor semi-foiling his Beneteau Figaro III to the horizon. It is in fact Ireland’s Sailor of the Year and the overall winner of last year’s Solitaire du Figaro, Tom Dolan. Somehow, we got our hands on a polar for the Class, and rather than trying to surreptitiously track Tom and his mates in the 2025 edition of the Solitaire, sailing rather-short, single-handed legs across the Celtic Sea and Biscay, we thought we’d see how our virtual craft would fare on the Class’s double-handed 3900nm Trans-Atlantic, from somewhere in Brittanny to somewhere in the Caribbean via somewhere in the Canaries. Allez, mes braves!
Race #1901
INFOby brainaid.de
Figaro III foil PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: SYC
Race starts: Apr 20th 11:00 Registration Open!
▶ Flash
GO TO RACE

Gladstone Ports Corporation Brisbane to Gladstone Yacht Race 2025


Sailonline is thrilled to partner with the Queensland Cruising Yacht Club for the 2025 Gladstone Ports Corporation Brisbane to Gladstone Yacht Race. This 308 nautical mile offshore classic takes our fleet from Brisbane to Gladstone along Australia's stunning east coast. Racing in high-performance Cookson 50s, SOLers will face shifting winds and tactical decisions at every turn. It’s time to test your skills in one of Australia’s most iconic yacht races. See you on the start line!
Race #1904
INFO by brainaid.de
Cookson 50 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: SYC
Race starts: Apr 18th 01:00 Registration Open!
▶ Flash
GO TO RACE

Bahamas and Back TIMED Race 2025

Welcome to sunny South Florida for this race that has us crossing the Gulf Stream twice. We depart from Palm Beach for a short run over to Freeport, Bahamas then it’s on to Miami before heading to the finish line back in Palm Beach. This is a TIMED race, so you may RE-REGISTER HERE to 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 #1911
INFO by brainaid.de
Santa Cruz 70 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking:
TRQ2 - TRCH - SUPSOL - SYC
RACE CLOSE: Saturday,
26 April at 23:00 UTC
Race starts: Apr 13th 12:00 Registration Open!
▶ Flash
GO TO RACE

Sinbad by Balloon 2025 - Toamasina to Baia de l'Oiseau


You may recall that when last we visited Madagascar in the company of Sinbad, the Sultan commanded our intrepid inspirator to seek out fabled islands where in Summer the sun barely set. We did and we returned but the Sultan wasn’t happy with Sinbad’s report, so here we go again, now by SOL Balloon instead of sailing vessel. Expect to be in the air for at least 2100nm and depending on how the wind brings us, anything between two weeks and two months before we shall descend at the Sultan’s given coordinates!
Race #1884
INFOby brainaid.de
SOL Balloon PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: SYC - SBB
Race starts: Apr 09th 11:00 Registration Closed
▶ Flash
GO TO RACE

Valparaiso to San Francisco 2025

Get ready for an exhilarating new challenge as we set sail on the fourth leg of the 2025 Ocean Championship Series! Following in the 19th century footsteps of Isabel Allende's heroine, Eliza Sommers, 'Daughter of Fortune', this all-new route takes us across the vast eastern Pacific, from Valparaíso, Chile, to San Francisco, California - a 3500nm journey of endurance, strategy, and pure sailing adrenaline. This leg will be raced aboard the powerful Rapido 60, pushing sailors to their limits as they navigate the open ocean. Do you have what it takes to conquer the Pacific? Join us and put your skills to the ultimate test!
PRIZE: SMPF
Race #1900
INFO by brainaid.de
Rapido 60 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: OCQ2 - OCCH - SUPSOL - SYC
Race starts: Apr 07th 11:00 Registration Closed
▶ Flash
GO TO RACE

Melbourne Osaka Cup Double-Handed Yacht Race 2025

Welcome once again to what these days is Sailonline’s almost annual virtual Melbourne to Osaka Yacht Race. In real life, this double-handed 5500 nm race between these two sister cities, one deep in the southern hemisphere, the other high in the northern hemisphere, is run every four to five years, and this year is such a year. So, this year’s online version is in sync with the Melbourne Osaka Cup 2025 organised by the Ocean Racing Club of Victoria (ORCV), and the Sandringham (SYC) and Osaka Hokko (OHYC) yacht clubs. We’ll be racing the well-known First 40, a popular size of boat which should be a good match for many of the boats entered in the real race. With the doldrums unavoidably lying across our course, you can expect to be at virtual sea for at least a month!
Race #1669
INFO by brainaid.de
First 40 Particulars
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: SYC
RACE CLOSE: Wednesday,
April 23 at 2300 UTC.
Race starts: Mar 16th 06:00 Registration Closed

▶ Flash
GO TO RACE

Go to race archive

SYC Ranking

  1. Sailonline Yacht Club Member WRmirekd
  2. Sailonline Yacht Club Member Patrick70119
  3. Sailonline Yacht Club Member KaSToR
  4. Sailonline Yacht Club Member CriticalHippo
  5. Sailonline Yacht Club Member vida
  6. Sailonline Yacht Club Member FreyjaUSA
  7. Sailonline Yacht Club Member rafa
  8. Sailonline Yacht Club Member bonknhoot
  9. Sailonline Yacht Club Member Kipper1258
  10. Sailonline Yacht Club Member rumskib

View full list

Series

Mobile Client

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

The mobile client