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 » Polar for First 40.7

Posted by
76Trombones


Users avatar

Posts
362
Registered at
2009-08-03 18:04:56
2010-07-16 14:09:12 - Polar for First 40.7
Our current polar doesn't really do this boat justice. I've attached an update based on Farr's own / IMS VPP.

Pretty similar from 0-20 kts. It's a tiny bit faster but the main difference is the addition of wind curves out to 30 kts TWS and better(?) data between 150 and 180 TWA.



Comments? Good/Bad idea?
Attachments
Posted by
Exmeromotu


Users avatar

Posts
71
Registered at
2008-12-10 15:22:17
2010-07-16 14:34:13 - Re: Polar for First 40.7
I say aye!

Anything that makes this "simulation" more like IRL is good. Nice work 76T!

Regards
Posted by
NZL_undercover


Users avatar

Posts
65
Registered at
2009-07-31 03:29:32
2010-07-17 11:01:33 - Re: Polar for First 40.7
Hi Guys

The First 40.7 is now an old model.....
The new Farr boat is a First 40 so newer and faster. First 40.7 I think is a 2004ish design or earlier.

Cheers Undercover
Posted by
sol


Users avatar

Posts
300
Registered at
2008-08-14 11:08:14
2010-07-17 14:42:33 - Re: Polar for First 40.7
Good point. I think one of the reasons that the First 40.7 is a popular boat for some of the local races is that lots of people have sailed on or against them? It's been requested for a couple of upcoming races.

Here's a polar for the new model if anyone wants to use it in their races:

76T
Attachments
Posted by
BER_Baggus


Users avatar

Posts
70
Registered at
2008-12-26 18:46:10
2010-07-22 13:58:09 - Re: Polar for First 40.7
Can I ask a general polar question? On SoL, we are looking at the True Wind angle on the polar diagrams. On the copy I have for one of the boats I sail on (Lindenberg 28), it refers to the apparent wind angle.

Whcih should I be taking more notice of?
Posted by
A2


Users avatar

Posts
347
Registered at
2009-10-26 00:39:42
2010-07-22 14:23:04 - Re: Polar for First 40.7
SOL Polars are representative for the TWS given in the game. There is no need or distinction for Apparent Wind formulation. Another way to look at it is the compensation is built into the Polars as given.
None so blind
Posted by
76Trombones


Users avatar

Posts
362
Registered at
2009-08-03 18:04:56
2010-07-22 16:51:22 - Re: Polar for First 40.7
Right.

For real boats, use the TW polars for navigation and (optionally) the AW ones for picking tacking angles based on onboard instrumentation. (unless you have modern fancy integrated insruments)

Target speeds can often be a better/easier way to maximise performance:

http://www.sailingworld.com/experts/get-your-performance-on-target

http://www.ockam.com/functarg.html
Posted by
Svein


Users avatar

Posts
84
Registered at
2009-05-04 15:09:20
2010-08-04 14:18:42 - Re: Polar for First 40.7
OK, so which polar is used in SOL races?

Please login to post a reply.

Races

Next Race: 00d 00h 00m

Current Races:

Mad Max by Balloon 2026 - Across the Outback


Mad Max Rockatansky doesn’t get to go in a balloon in any of the Legends of the Wasteland, and the Wasteland is not necessarily the Outback of Australia, but Mel Gibson and film director George Miller indubitably are… of Australia, and ballooning as reconnaissance is a main feature of the Mad Max spin-off video game, so here goes: 1500nm in a balloon from somewhere on the edge of the Outback, Goondiwindi, to cross a finish line at Fitzroy Crossing, somewhere on the edge of the Outback!
Race #1974
INFOby brainaid.de
SOL Balloon PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: BOL - SYC
Race starts: Oct 14th 13:00 Registration will open soon
▶ Flash
GO TO RACE

Valdes Peninsula TIMED Race 2026

October finds us on the Argentina coast for the Valdes Peninsula race. A UNESCO World Heritage Site the peninsula is a breeding ground for southern right whales. Sail the luxurious blue water Delphia 47 around a 160 nm course in an attempt to turn in the fastest time.
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 #2066
INFOby brainaid.de
PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking:
TRQ4 - TRCH - SYC
RACE CLOSE: Saturday,
24 October at 23:00 UTC
Race starts: Oct 11th 12:00 Registration will open soon
▶ Flash
GO TO RACE

Roma Giraglia Regata 2026

Our eighth race of nine to celebrate all things Mediterranean - fickle winds, history and olive oil – is another buddy-up; this one with the Circolo Nautico Riva di Traiano . Founded in 1984, as the new Traiano yacht Harbour neared completion, the Circola since then has developed into one of the major yachting competition centres in Italy, and next to the 450nm Roma per Tutti (which SOL buddied earlier in the year), the Roma Giraglia Regata is its other headline offshore event. First raced in 2005, the 210nm course takes competitors from Traiano to a rock on the inside of the Ile de la Giraglia off the northern tip of Corsica and back to the Italian mainland for a finish in the bay of Santo Stefano. We’re racing this one in our Class 40!
Race #2058
INFO by brainaid.de
Class 40 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: MED - SUPBUD - SYC
Race starts: Oct 08th 16:00 Registration Open!

▶ Flash
GO TO RACE

Arctic Tern - Greenland to Antarctica 2025

Welcome to the fifth leg of our MIG series. Now it's time to race the Arctic Terns, on their migration from Greenland to Antarctica, 8300 NM. This is also part of our monthly Ocean Championship, and as such the first race of OCQ4 2026. This race will be sailed in our Maxi Trimaran. Race #2061
INFO by brainaid.de
Maxi Trimaran PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230 Ranking:
OCQ4 - OCCH - SYC - MIG
Race starts: Oct 05th 11:00 Registration Open!
▶ Flash
GO TO RACE

Cross the Convergence 2026 - Masirah to Chagos


Having crossed, re-crossed and re-re-crossed the Convergence Zones of the Pacific and the Atlantic, we now face our second crossing of the Convergence Zone of the World’s third great equator-spanning sea, the Indian Ocean, taking us from the channel between Masirah Island and the Oman mainland to the Chagos Archipelago. It’s 1900nm and we’ll be sailing our very fine Archer 78, and won’t mention that both locations (of departure and arrival) are heavily militarized and the why’s and what next’s concerning that – mindful as always of SOL Netiquette.
Race #1988
INFOby brainaid.de
Archer 78PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: CCZ - SYC
Race starts: Oct 02nd 18:00 Registration Closed
▶ Flash
GO TO RACE

Go to race archive

SYC Ranking

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

View full list

Series

Mobile Client

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

The mobile client