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Polars & Performance
Below is a collection of polar diagram from various sources.
Mostly in numerical format to easily plug into routing software. They’re published here just to play around with. For serious/real use you should get a real one for your specific boat. Also some links to tuning guides and other perfomance related info. Share and enjoy!
- A-35
- A-40RC
- Albin Express (Sten Bergqvist, Edman, North, Ottosson, UK Syversen)
- Albin Nova (Blur)
- Arcona 430
- Beneteau 25 (North)
- Capri 22 (Ullman)
- Cal 40
- Catalina 22
- Catalina 36
- Class 40
- Farr 36 (Farr Performance Prediction)
- Farr 40 (Doyle, Farr PP, North, Quantum)
- Farr 52
- Farr 395 (Doyle, North)
- Farr 1020
- Fenix (trimguide)
- Finn Flyer 36 Club
- First 31.7
- First 34.7 (Farr PP)
- First 36.7 (Doyle, Farr PP, North, Quantum/pdf, UK/pdf)
- First 40
- First 40.7 polar1 polar2 (Farr PP)
- First 44.7 polar1 polar2
- First Class 8 (North)
- H-båt (Edman, Henrik Lundberg. Høj Jensen, North)
- J/22 (Haarstick, North, Quantum)
- J/24 (Doyle, Haarstick, Jardine, North, Quantum, Shore, UK, Ullman)
- J/27 (Ullman)
- J30 (UK)
- J/35 (Quantum)
- J/46
- J/80 (North, Shore, Quantum, UK, Ullman)
- J/92 ()
- J/105 (Doyle, North, Quantum, Ullman)
- J/109 vpp-od/vpp-genua (Doyle, North, North England, Quantum)
- J/120 (North, Quantum)
- J/122 (polar + pleliminary IRC cert)
- J/130
- J/133 (vpp)
- J/160
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- Melges 24 (North, Quantum, Ullman)
- Melges 32 (North, Quantum)
- Mumm 30/Farr 30 polar1 polar2 (Doyle, Farr PP, North, Quantum + Cookbook
- Mumm 36
- Olson 25 (Scot Tempesta)
- Prima 38 (Quantum Tuning Guide)
- Santana 20 (Ullman)
- SeaCart
- Sigma 33
- Soling (Doyle, North, UK)
- Sun Fast 3200
- Sydney 36CR
- Sydney 38 (North)
- Swan 42 “ClubSwan” (North, Quantum)
- Swan 45 (B&G, Hall. North, Quantum)
- Swan 62RS
- Swan 70
- Ultimate 20 (Ullman)
- Yngling (Doyle, Høj Jensen, North, Ullman)
Various sources for IMS ratings with VPP-data:
Just for reference I collected a bunch if IMS certificates here.
I also collected lots of IRC numbers, just for reference. Sorted by boat type and sorted by Time Corrector (TCC).
Pelle Lindell did some excellent comparisons between LYS, IRC, IMS, ORC Club and PHRF: “Käpp eller rullator, handikapp för seglare – En jämförelse av olika handikappsystem” + spreadsheet.
Various sources on trim/tuning (Swedish):
Various polars from Sailinline.org.
- Albin Express
- Arcona 400
- Arcona 460
- Bavaria 38 Match
- First 44.7
- Comfortina 38
- Dehler 33
- Dehler 36
- Dehler 44
- Diva 35
- Dufour 34
- Dynamic 3000
- Farr40
- Facil 30
- Finngulf 33
- Grand Soleil 341
- Grand Soleil 37
- Grand Soleil 40
- Hanse 400
- IMX 38
- Linjett 33
- Linjett 40
- Mumm30
- Mumm 36
- Omega 34
- Wasa 410
- X-332
- X-41 (assy for pole)
- Scanmar 33
- Swan 37
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blur » Blog Archive » Polardiagram
Dec 18, 2006 @ 12:17
[…] Jag har sammmanställt en del polardiagram för olika båtar här. Kan vara intressant att labba med om man skall byta båt (eller bara på kul). […]
blur » Blog Archive » Wrap Up 2006 - bloggen
Dec 28, 2006 @ 22:18
[…] Sökt på Google: vad är det folk har sökt på när de kommer till blur.se? I fallande ordning ‘Maria Cattiva’ (>500 klick), ‘polardiagram’, ‘Tjörn Runt’, ‘Blur’, ‘x-35′, ‘Albin Nova’, ‘Bengt Falkenberg’, ‘Hermanö Runt’, ‘Gotland Runt’ och över 2.000 andra sökord. […]
Trimguider « Aiming First
Apr 23, 2007 @ 22:06
[…] Jump to Comments Her er en liste over trimguider på nett. Les og kos […]
Jun 12, 2007 @ 19:16
Hi,
I went to your Web page looking for polar diagram or data for Tartan 10. I found the tuning guides but not the performance prediction. If anyone has one please let me know.
Thanks,
Ron
Jun 26, 2007 @ 04:52
I also am looking for T-10 polars; are any available?
Bruce
Oct 25, 2007 @ 06:23
Hi guys, given that there’s a lot of people from Scandinavia here I figured I’d ask the question; Has anyone come accross the polars for the dJUICE VO60 or any of the other last generation VO60’s. Please let me know,
Euro
Nov 13, 2007 @ 17:03
Hi Euro,
I have ORC polar data for VO 60 but only in paper format, so I have to rewrite them and then send it to you.
Please, let me your e-mail.
Mandul
Nov 25, 2007 @ 00:37
Peter,
Det finnes et ferskt IMS-målebrev for IW 31 FIN 6313:
http://www.avomeripurjehtijat.fi/certlist/?boat=L-6313&content=pdf
Jeg har plottet polardiagrammet her:
http://iw31.blogspot.com/2007/10/s-fort-br-vi-seile-polardiagram-for.html
Feb 11, 2008 @ 18:05
Anyone with polars for :
Benateau One Ton ?
Would appreciate it.
boloughlin@cox.net
Feb 25, 2008 @ 01:30
I’m looking for polars for an Etap 30. I’m hoping someone across the Atlantic that races an Etap 30 might be able to help me.
Thanks!
Carl
Apr 8, 2008 @ 11:50
Please, is it possible the polars for X-40 with genoa 135% or genoa 105%.
Thanks
Lakis
Apr 24, 2008 @ 14:03
Do you know where I can get a polar diagram for Capri 22?
Apr 25, 2008 @ 11:09
Noen som kan hjelpe med å tyde polardiagrammet for First Class 8?
Jul 28, 2008 @ 21:18
I am looking for catalina 38 polar diagrams?
Or suggestion how to calculate them ?
Sep 9, 2008 @ 13:12
any one have a polar or tuning guide for a Delher 22/Dehlya 22?
thanks
Sep 18, 2008 @ 09:02
Any polars/performance for the new First 45 with Carbon Rig and deep keel?
Sep 18, 2008 @ 10:01
Here are some Dehlya 22 polars from IMS VPP (with oversized 36 m2 spinnaker). Displacement and RM are not accurate, but I found the target speeds to be OK.
The boat is very fast for it’s size and age when the wind is 10 kn or less. In stronger winds it’s speed is limited by the short waterline and the hull form that is very difficult to get out of displacement mode.
TWS, BSP, TWA, BSP, TWA
6, 3.79, 43.9, 3.67, 148
8, 4.63, 43.4, 4.61, 150
10, 4.77, 40.5, 4.81, 165
12, 4.85, 39.4, 5.17, 170
14, 4.91, 38.8, 5.52, 172
16, 4.95, 38.6, 5.80, 173
20, 4.98, 39.2, 6.35, 172
Oct 3, 2008 @ 15:55
Joakim. Thanks for these figures!
As a new owner of a Dehlya 22, I’m interested in the target speeds of my boat.
But how can I transfer these numbers into a polar diagram? Do I need specific software for this?
Do I read it right as TWS = True Wind Speed, BSP = Boat Speed, TWA = True Wind Angle?
As I understand the angles, they represent the wind angle producing the maximum boat speed when tacking, and reaching. But what about the other wind angles?
Eric
Oct 5, 2008 @ 11:15
Eric, you can use a spreadsheet like Excel to present these figures in graphical format. You would of course need the “other” angles too, they are found in the boats ORCc/i certificate – maybe Joakim can help you to find one?
Oct 6, 2008 @ 15:37
Here are all the data for Dehlya 22. Note that TWA includes leeway. Hope you can read it. I don’t see any use of making the polar diagram. Just pick some values from the table and compare.
Wind Velocity 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles 44,0° 43,5° 40,3° 39,1° 38,5° 38,2° 38,5°
Beat VMG 2,65 3,28 3,58 3,72 3,81 3,87 3,89
52° 4,15 4,89 5,19 5,38 5,48 5,54 5,59
60° 4,57 5,06 5,37 5,58 5,69 5,75 5,81
75° 4,80 5,35 5,64 5,76 5,95 6,07 6,17
90° 5,00 5,49 5,81 6,00 6,10 6,19 6,46
110° 4,91 5,40 5,76 6,07 6,35 6,55 6,77
120° 4,75 5,28 5,67 5,98 6,30 6,59 7,04
135° 4,15 5,00 5,43 5,77 6,07 6,37 7,01
150° 3,52 4,54 5,10 5,49 5,80 6,09 6,67
Run VMG 3,05 3,93 4,59 5,04 5,40 5,69 6,22
Gybe Angles 147,6° 149,5° 164,6° 169,7° 171,5° 172,9° 172,3°
Oct 6, 2008 @ 18:18
Polar diagram might come handy, if you are intrested in optimising VMC, on longer offshore legs perhaps…
Otherwise, it’s just as Joakim says, pick your target and compare. You will however have to calculate your target speed: TBS=VMG/cos(TWA). And note also, that in the range 0…10 kn the TBS changes quite rapidly, so the wind (TWS) should also be measured accurately.
Oct 7, 2008 @ 13:08
Thanks a lot!
Now I can compare my performance, and check the best course!
As you say, the graph is not necessary, It’s the data I need..
It will help me to improve my sailing :-)
Eric
Oct 8, 2008 @ 18:54
Looking at the data, I’m not sure I understand it all :-(
TWA 90° means: wind 30°; course my GPS 120° for example?
And: if the wind blows 6 kt, and I sail 90° wind angle, I should be able to do 5 kt?
I was comparing the data to the Dutch ORC-data I have for Dehler Sprinta (http://www.watersportverbond.nl/data/8F2_Sailspeed.xls), and it is suggested that the Dehlya is faster, allthough smaller???
Thanks again for explaining, and helping me!
Eric, Senior; but Junior Racer…….
Oct 8, 2008 @ 22:09
As I said this data was with an oversized spinnaker, which is actually 38 m2 with the ORC formula compared to 33 m2 of Sprinta Sport, which should do 5,0X kn at 6 kn 90 (checked two boats).
Even with a more typical spinnaker of 28 m2 the Dehlya 22 should do 4,89 kn at 6 kn 90. As I said it is a very fast boat for its size and age in light winds. Size doesn’t count that much in light winds and you should be able to sail faster than many bigger boats at 6kn.
Oct 20, 2008 @ 22:19
Any polars for a mumm 36?
Oct 21, 2008 @ 07:37
4 or 5 at http://www.ssf.se/tk/pdf/cert2008.asp
Oct 26, 2008 @ 19:23
Hej!
Nu finns det polardiagram för Beneteau First 32s5 här
http://www.sailstarck.com/Forum/tabid/53/mid/369/threadid/7/scope/posts/Default.aspx#43
Oct 28, 2008 @ 03:55
Noone has any polars or tune details for the Beneteau First 45 with carbon rig and deep keel ?
Nov 17, 2008 @ 14:33
I’m looking for polars for X 40 (1985) with 120% genoa.
Who can help me? 11 Lakis: have ever had an answer?
Thanks, Frank
Nov 17, 2008 @ 14:35
I’m sorry,
I mean 130% genoa (N° 29)
Jan 12, 2009 @ 04:14
Thanks for the Dehler 22 info the boat is very quick in light air
Mar 10, 2009 @ 10:22
Does anyone have polars for Scampi Mark IV.? Help.
Apr 7, 2009 @ 14:19
Any polars for First Class 10????
May 2, 2009 @ 08:41
Good Morning,
Any polars for a Bavaria 34, long keel, year 2000 manufacture?
Thanks,
Bernard Bodin
May 4, 2009 @ 13:58
Joakim you state that a Delher 22 is difficult to get out of displacement mode could you give an explanation and ideas on optimizing for this condition.
thanks
May 5, 2009 @ 07:39
What kind of optimiazation are you talking about? The hull form is not designed for semiplanning speeds, thus it needs big waves to get over 7 kn and still the average speed will be below 7 kn. At least I was newer able to sail faster than 7 kn for more than a couple of minutes or so and that was in ~15 m/s wind with the big spinnaker.
May 5, 2009 @ 21:37
I have not had the opportunity to sail my boat in strong down wind condition but other than a rather fine entry and the stub keel it would appear that it should be quite easy to sail fast down wind. I calculate a D/L of under 150. I was wondering if it is worth raising the keel or using a masthead chute. As this is a rare boat here in the states there is not much in English to go on. I rate in PHRF 234 which is very generous when looking at how fast the boat is in light conditions but not sure if it’s worth the penalty for a larger chute. My boat is rather bare below so no excess weight . Thanks for you response my blog for the boat is http://mysorellina.wordpress.com/ I also race on a Kirby 25
May 5, 2009 @ 23:20
I think the D/L-ratio is close to 200. The waterline is about 5.5 m and the displacement in sailing condition (without crew) likely around 1,2-1,3 tn. I did never put my Dehlya on a scale, but I did quite a lot of queries from the German owners and ended up estimating my Dehlya to 1,3 tn. The official value is 950 kg (or even 900 kg), but it is not clearly stated whether it contains the 200 kg of water ballast. But then using the official WL of 5.2 m with 950 kg ends up close to 200 as well. Thus it is not a light boat! Or have you better knowledge of the displacement?
I don’t know much about PHRF and the fleet is very different here, but picking up some familiar boats 234 sounds very easy to sail to:
http://www.ussailing.org/phrf/Tool_%20HI_LO_AVG%20Report.pdf
I had a LYS of 1.02, which meant I needed to be 2% faster than Albin Vega, 1% faster than Avance 245 and equal to Beneteau First 24. With that rating I did well under 5 m/s and lousy over 6 m/s.
Sure it might help to lift the keel, but it takes quite long and also reduces stability quite much, thus not very safe when it blows. The mast has quite a long unsupported part and putting masthead chute to that needs some care. The boat does not carry well a big chute when it blows.
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Mar 17, 2016 @ 09:33
[…] Vilken är högsta farten på alla bogar i alla vindar? Två bra källor till polärdiagram är: http://www.blur.se/boats/ och http://www.orc.org/index.asp?id=1 (där man behöver logga in och ibland betala för […]
Feb 11, 2020 @ 06:30
I’m looking for Polars for a Cal 35 MK1
May 1, 2022 @ 07:01
Hey Matt, any luck to find them? Im looking for the same Polars
Apr 25, 2020 @ 13:59
Hi. I´m Fernando from Argentina. I have a J/24
I am looking for the J / 24 polar chart.
Here in Argentina we sail with jib 0% and a maximum crew of 340kg. So, the polars that I need would be with jib and not genoa.
Do you have the information?
Thank you very much.
Fernando & Crew.
Jul 11, 2020 @ 22:04
Any information for Sprinta Sport? An E.G. Van derStat one design built by Dehler. Thanks.
Jul 11, 2021 @ 04:37
Hi just wondering if anyone has come across the polars for Sun Odyssey 389 standard keel