10 replies to this topic

[NorCalLaser]

Anybody got c30 polars? standard rig, deep draft keel...

Cheers,
NCL

[Ajax]

Paging Dr. Hike Bitches to the courtesy phone...

[boomer]

Read this and ask at these sites as well.

http://forums.sbo.sa...ad.php?t=115152

http://www.catalina30.com/tableof.htm

http://www.catalina30.com/

[WHL]

Anybody got c30 polars? standard rig, deep draft keel...

Cheers,
NCL

These are the tall rig standard draft and will give you a starting point. Try emailing Gerry Douglas at Catalina for the standard rig deep draft

C30 Polars

http://www.catalina3.../PolarChart.htm

 catalina 30 polars.jpg   214.43K   45 downloads

[jackdaw]

That's sweet that they have polars for a Catalina 30!

Best spec in that linked 1979 review is the boat's PRICE PER POUND. US$2.21

[boomer]

http://www.catalina3...ar_diagrams.htm

[NorCalLaser]

thanks folks

cheers
NCL

[Hike, Bitches!]

Nice....I didn't know those existed!
I thought I had checked out every page of that site...but usually it is about fixing leaky windows & busted rudder post stuffing box repairs instead of actual performance numbers...

NCL - I own hull #511. STD rig, deep keel, w/ original Atomic4. Oh, I see those numbers are with a folding prop...I also have added the 3 blade 10 x 7.4 Indigo prop..although with no offense to its designer Tom Stevens, I probably would not do so again if I hadn't gotten such a good deal on it....a 12 x 7 2-blade which was stock on my boat or even a 12 x 6 might be adequate with much less sailing drag. Anyway..I digress...I do not race the old girl & I get another 150 RPM with the Indigo prop.

What do you own?

Go the CA!

[Cavelamb]

Polars from an old square rigger?

Attached Files

•  PepperWreckPolarDiagram.jpg   72.63K   23 downloads

[Cavelamb]

Polars from an old square rigger?

Since people are asking how I drew that (!) no, I did NOT make that up.
Google Sail Polars.
There it is...

[Cavelamb]

Best I can make of it from what you gave me...

Attached Files

•  Polar1.png   11.78K   2 downloads