Sailonline.org - Online Sailing

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!

Tweets by @sailonline

Board » General Discussion » Polar analysis spreadsheet

Page: 1 2 3 Next

Posted by Incognito Posts 183 Registered at 2008-12-06 13:43:52	2010-02-23 22:01:36 - Polar analysis spreadsheet
	New version for those who are interested. Go to the page 'VMG overview' and change only the figures in red. Two exceptions: -'Chosen setting' where you can input either a TWA in cell C7 or or a CC in cell C8. - Cell V10, which defines the scale of the graph. --- Last Edited by Incognito at 2010-02-24 20:19:56 --- Attachments Sailonline_VMG3_Santa_Cruz_52.xls (1.4 MB)
Posted by A2 Posts 347 Registered at 2009-10-26 00:39:42	2010-02-23 22:56:01 - Re: Polar analysis spreadsheet
	Excellent work as usual Incognito.. I think I can see how this has progressed from your earlier SS. If you wouldn't mind giving us the benefit of your insight as to how you improved this from the last one and how to utilize its features. thanks None so blind
Posted by Incognito Posts 183 Registered at 2008-12-06 13:43:52	2010-02-24 08:17:10 - Re: Polar analysis spreadsheet
	There are 3 main changes: - I added an input for the settings that you are using or want to use in cells 'C7' and 'C8', an the corresponding data in colum 'G2:G8'. - I added the VMC row 'E6:T6'. - I added a macro to adjust the graph automatically when changing cell 'V10'. I am already thinking of the next version. I would like to give it a more dynamic character by providing key data at various wind speeds and wind angles. That requires a bit more programming however, and that is always time-consuming.
Posted by Joshua_Pig Posts 22 Registered at 2009-09-25 16:58:15	2010-02-24 11:59:30 - Re: Polar analysis spreadsheet
	Many thanks for this great job, Inco Where can we find spreadsheets for other boats ?
Posted by A2 Posts 347 Registered at 2009-10-26 00:39:42	2010-02-24 16:55:08 - Re: Polar analysis spreadsheet
	See Below --- Last Edited by Aethereal at 2010-02-24 19:51:48 --- None so blind
Posted by Incognito Posts 183 Registered at 2008-12-06 13:43:52	2010-02-24 19:44:48 - Re: Polar analysis spreadsheet
	Almost correct, but it will not work with the Santa Cruz spreadsheet. Reason is that the Santa Cruz polar data does not come from brainaid's site. It is an own construct based on the raw data provided in the race screen. (Interestingly, my interpolations seemed to come very close to the real thing.) Anyway, here is how to use the spreadsheet for another boat. 1. Download the attached spreadsheet for the Seacart 30. 2. Download the polar data from Brainaid's site and copy it into the cells 'A11:d7250' on the page 'Data'. 3. Right-click on any cell in the table 'F9:AT191' on the page 'Data'. 4. Select 'Refresh Data' in the menu that just appeared. You should see some changes in the table as a result. 5. That 's it! You are ready to go. Attachments Sailonline_VMG3_Seacart_30.xls (1.6 MB)
Posted by kalle Posts 413 Registered at 2007-06-01 09:58:04	2010-02-24 20:16:52 - Re: Polar analysis spreadsheet
	Also note that our raw polar data is downloadable from the "Help tab" in the client.
Posted by Joshua_Pig Posts 22 Registered at 2009-09-25 16:58:15	2010-03-16 15:54:22 - Re: Polar analysis spreadsheet
	Thanks for your reply but it doesn't work... When pasting new polar data, the following error message appears : "La taille et la forme des données ne correspondent pas à la zone sélectionnée" If I ignore that message, values obtained in spreadsheet don't correspond with reality. Sorry for the trouble...
Posted by Incognito Posts 183 Registered at 2008-12-06 13:43:52	2010-03-17 09:28:52 - Re: Polar analysis spreadsheet
	FR Joshua74 said @ 2010-03-16 15:54:22: Thanks for your reply but it doesn't work... When pasting new polar data, the following error message appears : "La taille et la forme des données ne correspondent pas à la zone sélectionnée" ------- Hello Josh, Sorry for the late answer, I was a bit sick for the last few days. So, if I understand you well, you want to use my spreadsheet with the polar data of another boat. My first question then is: where does the new polar data come from? Regards, Francois
Posted by Joshua_Pig Posts 22 Registered at 2009-09-25 16:58:15	2010-03-18 16:16:56 - Re: Polar analysis spreadsheet
	Salut François, j'espère que tu vas mieux maintenant. En fait ce que je recherche pour l'instant, c'est un moyen de connaître le meilleur twa pour une tws donnée... Pour cela, je n'ai que ta feuille de calcul et j'essaye de rentrer les data obtenues sur le site de Brain ou dans l'onglet "boat polar" du bateau en question et selon le mode d'emploi que tu indiques plus haut. Mais je suis une vraie bille en info et je dois faire quelque chose de faux sous excel sans savoir quoi évidemment... Merci d'avance !

Page: 1 2 3 Next

Please login to post a reply.

Races

Next Race: 00d 00h 00m

Current Races:

CA 500 2024

In 2019, the organisers of the California Race Week introduced a new longer distance event for the world’s very largest maxi trimarans in town that year intent on setting new records for the TransPac Ocean Race on its 50th anniversary. This CA 500, 500nm from San Francisco to San Diego, was repeated in 2023, but this year it will be an online only event, as it is a lot more straightforward to get a fleet of Maxi trimarans out on the virtual water, than in real life.
Race #1799
INFO by brainaid.de
Maxi Tri PARTICULARS
NAM_AWIP WX Updates:
0245 / 0845 / 1445 / 2045
Ranking: SYC - CRW
Race starts: May 25th 17:40 Registration Open!

▶ Flash

GO TO RACE

Capt Anderson's Resupply TIMED Race 2024

Welcome back to the Pacific Northwest for a race that takes us around the southern end of Vancouver Island and up the west coast as we supply six lights. The leg starts in Victoria, and we sail into the open water of the Salish Sea. After making our way up the west coast we must go up the narrow channel to restock in Port Alberni. This is a TIMEDrace, so you may RE-REGISTER HERE to try again, after finishing a run. You will have 13 days and 11 hours to show your skill and decision making after the race opens.
Race #1809
INFO by brainaid.de
11 Metre OD PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking:
TRQ2 - TRCH - SUPSOL - SYC
RACE CLOSE: Saturday,
01 June at 23:00 UTC
Race starts: May 19th 12:00 Registration will open soon

▶ Flash

GO TO RACE

Vasco da Gama Ocean Race 2024

Join us at Sailonline for a thrilling adventure in the 2024 Vasco da Gama Ocean Race! This event is the most prestigious and longstanding international sailing competition in South Africa, offering a unique journey steeped in history. Traditionally setting sail from the picturesque bay of Maputo, Mozambique's enchanting old Portuguese colonial capital, the race has charted a new course in recent years. This edition will see competitors navigating a challenging 250-nautical-mile course from Durban to East London. Adding to the excitement, this year our SOLers will harness the speed and power of our fleet of Carkeek 40s!
Race #1807
INFO from brainaid.de
Carkeek 40 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: SYC
Race starts: May 19th 08:00 Registration Open!

▶ Flash

GO TO RACE

Neumayer Station to Biscoe Wharf 2024

It’s Autumn now in Antarctica, the sun is permanently below the horizon, but during the day, from c 0900 to c 1700 local time, there is some twilight – nautical twilight, not to be confused with civil twilight which is brighter. The penguins are starting to huddle together to keep warm and the sea ice is growing. Time to get back to Biscoe Wharf then, before the water becomes impassible. Including a detour past Argentina’s main two Antarctic stations, it’s only 1900nm, so, although we’ll be in a hurry, we will take the bigger, better ice-classed Paratii 2 once more, just to be sure!
Race #1766
INFOby brainaid.de
Paratii 2 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: HLAT - SYC
Race starts: May 13th 19:00 Registration Closed

▶ Flash

GO TO RACE

Flight of the Godwit - Hegura to Anchorage 2024

Welcome to the second flight of our bar-tailed Godwit!. This race is the second of three legs reflecting the bird's annual migratory route, and simultaneously the fifth leg of the 2024 Ocean Race Championship. The voyage promises to be not only a test of skill and strategy but an immersive experience in the beauty of the archipelagos of the Aleutian Islands. Join us as we push the boundaries of seafaring prowess on this epic adventure. Let's fly like a godwit!
PRIZE: SMPF
Race #1791
INFOby brainaid.de
Maxi Trimaran PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: OCQ2 - GWT - OCCH - SUPSOL - SYC
RACE CLOSE: Sunday,
May 19 at 2300 UTC.
Race starts: May 06th 11:00 Registration Closed

▶ Flash

GO TO RACE

Melbourne to Osaka Prelude 2024

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 is planned to be held again in 2025, so this race is a Prelude in partnership with the Melbourne Osaka Cup 2025 organising committee collaborating with the Ocean Racing Club of Victoria (ORCV), and the Sandringham (SYC) and Osaka Hokko (OHYC) yacht clubs. On this occasion, we’ll be racing the well-known First 40, a popular size of boat for a long-distance double-handed race. With the doldrums unavoidably lying across the track, 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 starts: Apr 20th 00:00 Registration Closed

▶ Flash

GO TO RACE

Go to race archive

SYC Ranking

View full list

Series

Mobile Client

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

The mobile client