Norwegian Blue 15 Posted January 26 Share Posted January 26 Anyone have a set of polars for the 930? Quote Link to post Share on other sites
markm 32 Posted January 26 Share Posted January 26 Best place for polars is probably orc.org sailor services certificate search. Ultraman II and AYE SEA RED both have polars. 1 Quote Link to post Share on other sites
Leftred 49 Posted January 26 Share Posted January 26 Are any two 930s alike anymore? 1 3 Quote Link to post Share on other sites
splat 57 Posted January 27 Share Posted January 27 Here's some old ones from two NW Pacific Boats. ross930.xlsx 1 Quote Link to post Share on other sites
MartinRF 65 Posted January 27 Share Posted January 27 Here is a database of calculated polars. I don't know if there are any Ross 930s to be found there but maybe of interest anyway. https://jieter.github.io/orc-data/site/#NED/NED650 /Martin 1 Quote Link to post Share on other sites
Norwegian Blue 15 Posted January 28 Author Share Posted January 28 On 27/01/2025 at 9:33 AM, Leftred said: Are any two 930s alike anymore? Nope but at the moment I chose a Sunfast 3200 or Dehler 30OD as a benchmark. It would be nice to get something closer. Hmmm anyone splashed the cash on a Predictwind data hub yet and wants to loan it out? Quote Link to post Share on other sites
Norwegian Blue 15 Posted January 28 Author Share Posted January 28 22 hours ago, splat said: Here's some old ones from two NW Pacific Boats. ross930.xlsx 9.81 kB · 15 downloads Thank you! I can start with these and my MFD will tell me how I am performing against them. They look like class boats but at least that will give me a base to start from and then improve from there. Quote Link to post Share on other sites
SloopJohnB 328 Posted January 28 Share Posted January 28 Have a look at this. http://data.avalon-routing.com/vpp/index.php?lang=en http://data.avalon-routing.com/vpp/polarcustomize.php?id=261&units=1&name=Young 12&lang=en https://techsail.com/sailfish-yacht-analyzer/ 1 Quote Link to post Share on other sites
Norwegian Blue 15 Posted March 11 Author Share Posted March 11 On 27/01/2025 at 6:53 PM, splat said: Here's some old ones from two NW Pacific Boats. ross930.xlsx 9.81 kB · 16 downloads Hi Splat, I am pleased to say that these worked fantastically during the Northern Triangle. I used the base data and then tweaked a little where I know we are a bit faster off the wind with a rather large A2 up. Having polar performance data continually showing certainly made both co-skippers keep working hard to keep the numbers at 100% or better. I may just put the Predictwind data hub on my Christmas wish list which will improve this continually. Quote Link to post Share on other sites
Bad Kitty 318 Posted March 11 Share Posted March 11 On 28/01/2025 at 2:09 PM, Norwegian Blue said: Nope but at the moment I chose a Sunfast 3200 or Dehler 30OD as a benchmark. It would be nice to get something closer. Hmmm anyone splashed the cash on a Predictwind data hub yet and wants to loan it out? Predict Wind data hub polars are excellent in the app for routing, departure planning etc. but no good for actual polars. They’re way more complex, in ways that are totally over my head, but when I asked if we could export them it was explained, with absolutely no understanding at my end, that it wasn’t a useable format. On the plus side, it makes their weather routing almost supernaturally accurate. Just amazing! 1 Quote Link to post Share on other sites
CarpeDiem 527 Posted March 11 Share Posted March 11 2 hours ago, Norwegian Blue said: Hi Splat, I am pleased to say that these worked fantastically during the Northern Triangle. I used the base data and then tweaked a little where I know we are a bit faster off the wind with a rather large A2 up. Having polar performance data continually showing certainly made both co-skippers keep working hard to keep the numbers at 100% or better. I may just put the Predictwind data hub on my Christmas wish list which will improve this continually. It would be beneficial to add a with/without weed option to the spreadsheet as well. 4 Quote Link to post Share on other sites
Cameron 96 Posted March 12 Share Posted March 12 On 11/03/2025 at 7:07 PM, CarpeDiem said: It would be beneficial to add a with/without weed option to the spreadsheet as well. Too many variables... Arev you carrying weed onboard or wrapped around appendages? and how much weed? 3 Quote Link to post Share on other sites
waikiore 477 Posted March 15 Share Posted March 15 Aussie Sail GP find the weed too 1 Quote Link to post Share on other sites
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