Polar Curves

muyuu said:
Interesting project:

http://polardiagram.com/
Click to expand...

Interesting, as you say. But, I can only find 11 boat models (from three manufacturers). Since they say the project started in March 2010, that works out at a little less than one a month.

I'm not holding my breath for them to get round to my boat model!

I suspect they got bored and gave up.

Edit: Oh no, tell a lie. They list 11 boat models, but don't even have the polars for all of them. Curiously, it also lists the maufacturer of both Hanse and Beneteau as Bavaria!
 
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Angele said:
Interesting, as you say. But, I can only find 11 boat models (from three manufacturers). Since they say the project started in March 2010, that works out at a little less than one a month.

I'm not holding my breath for them to get round to my boat model!

I suspect they got bored and gave up.

Edit: Oh no, tell a lie. They list 11 boat models, but don't even have the polars for all of them. Curiously, it also lists the maufacturer of both Hanse and Beneteau as Bavaria!
Click to expand...

Manufacturers could make this easy, they just don't seem to want to.
 
Dave100456 said:
You can find examples of Polar and Excel speed tables by going to
http://www.hallberg-rassy.com/
Select the HR 48 model and scroll down to bottom of the page that has the links (it won't copy & paste here)
Dave
Click to expand...
Link to excel file: http://www.hallberg-rassy.com/hr48/HR48Boatspeeds.xls

Polar diagrams of all the models:

http://www.hallberg-rassy.com/HR310/HR310speeddiagram.shtml
http://www.hallberg-rassy.com/HR342/HR342speeddiagram.shtml
http://www.hallberg-rassy.com/HR372/HR372VPP.shtml
http://www.hallberg-rassy.com/hr37/speed_HR37.shtml
http://www.hallberg-rassy.com/hr40/hr40-speed.shtml
http://www.hallberg-rassy.com/hr43/speed_HR43.shtml
http://www.hallberg-rassy.com/hr48/hr48speeddiagram.shtml
http://www.hallberg-rassy.com/HR54/HR54speeddiagram.jpg
http://www.hallberg-rassy.com/hr62/speed_HR62.shtml
http://www.hallberg-rassy.com/HR64/HR64speeddiagram.shtml
 
It seems some computers somewhere are crunching away to produce these.

Have any been verified by actual sailing and recording on the water and in the wind?

I know the designers would never lie to us but . . . are the computers really that good?
 
Would anyone have, or be able to point me in the direction of a polar diagram for an Albin Ballad?

Or was it all done a with wet finger and which angle the coffee blew out of your mug!:rolleyes:

Thanks

Lew
 
LewB said:
Would anyone have, or be able to point me in the direction of a polar diagram for an Albin Ballad?

Or was it all done a with wet finger and which angle the coffee blew out of your mug!:rolleyes:

Thanks

Lew
Click to expand...

I don't know about the Ballad, but one certainly exists for the Albin Vega - Albin Vega Polar Diagram.

Ash
 
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Several boats:

http://www.blur.se/boats/


1D35 (North, UK, Quantum)
606 (Gransegel, Hamel, North)
806 (trimguide)
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
Dehler 38/Pacer 376
Dehler 44
Drake (Høj Jensen, North Tuning Guide)
Etchells (Doyle, North, Quantum)
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)
IF (Edman, North)
IMS 43
IMS 53
IMX-40 (X-yachts)
IMX-45 jib only
IRC 32
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
Landmark 43
Melges 24 (North, Quantum, Ullman)
Melges 32 (North, Quantum)
Mumm 30/Farr 30 polar1 polar2 (Doyle, Farr PP, North, Quantum + Cookbook
Mumm 36
Nelson-Marek 43
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
Tartan 10 (Doyle, North, Sobstad)
Ultimate 20 (Ullman)
VO 70
X-35 polar1, polar2 (B&G, North)
X-99 (North, X-yachts)
X-332 (trimguide)
X-332 Sport
Yngling (Doyle, Høj Jensen, North, Ullman)
 
BobPrell said:
It seems some computers somewhere are crunching away to produce these.

Have any been verified by actual sailing and recording on the water and in the wind?

I know the designers would never lie to us but . . . are the computers really that good?
Click to expand...

The polars produced but the velocity prediction programmes are only theoretical figures. I think usually they are pretty accurate but most boats should be able to go one or two percent faster than the table would suggest if sailed perfectly.

It's quite mad when you get serious about the results of the VPP for different boats. At the high end a boat is considered slow if it can only reach 100% of it's theoretical potential. A fast boat will be doing 105% or more.
 
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