Stus-List downwind polars

The polars for my boat predict an optimal downwind speed at an angle around 145° true. Does anyone know what assumptions are made in this prediction about spinnakers and whisker poles? I race non-spinnaker and often on windward-leeward courses so we are often dead downwind and the whisker pol

Re: Stus-List downwind polars

I think the assumption is that downwind you'll only ever go as fast as the wind. Maybe I'm thinking about it wrong. Josh Muckley S /V Sea Hawk 1989 C&C 37+ Solomons, MD On Sat, Jun 30, 2018, 7:48 AM David Knecht via CnC-List < cnc-list@cnc-list.com> wrote: > The polars for my boat predict an

Re: Stus-List downwind polars

David, I’m pretty sure polars are for standard jib and main configuration and do not account for wing-on-wing pole use or spinnaker use. All the best, Edd --- Edd M. Schillay Captain of the Starship Enterprise C&C 37+ | Sail No: NCC-1701-B City Island, New Yo

Re: Stus-List downwind polars

The downwind polars on the J109 I race on regularly definitely assume spinnaker use. The Class jib is barely more than 100% (maybe 105%) and if going downwind jib and main only we’d never finish! The polars we steer to give precise wind angles depending on true wind speed. The lighter the wind,

Re: Stus-List downwind polars

I think most polars assume a kite will be used downwind. cenel...@aol.com -Original Message- From: David Knecht via CnC-List To: CnC CnC discussion list Cc: David Knecht Sent: Sat, Jun 30, 2018 7:48 am Subject: Stus-List downwind polars The polars for my boat predict an optimal d

Re: Stus-List downwind polars

Hi David, One of the features of the SailTimer App and Wind Instrument (http://www.sailtimerapp.com , http://sailtimerwind.com ) that attracted me to buy them is that the app can create polar diagrams for your specific boat and specific

Re: Stus-List downwind polars

Polars presume a spinnaker at the crossover point where the chute is faster than jib & main.As for downwind speed, the Marchaj (sp?) book has data to back the old theory that if you reverse your best beat upwind, you will be going the same speed downwind.When the wind speed increases to the poi

Re: Stus-List Amazing USCG rescue - Anybody else see this?

A big takeaway from story is when offshore all locker tops (including top loading frig) and flooring need be secured to prevent flying, and ultimately clogging, objects. Most offshore race inspections require such modifications. Also companionway must be securable and releasable from above and

Re: Stus-List downwind polars

I guess my real question is whether the boat is faster dead downwind with the whisker pole or tacking downwind at the polar angle optimum. I have always used the whisker pole and the shorter distance, and have not yet tried the other route. Has anyone tested this themselves? Dave > On Jun 30

Re: Stus-List downwind polars

In light air, dead downwind will be faster. Set your way point for dead downwind and measure your VMG both ways to find out when it no longer makes sense Joel On Sat, Jun 30, 2018 at 6:54 PM David Knecht via CnC-List < cnc-list@cnc-list.com> wrote: > I guess my real question is whether the boat

Re: Stus-List checking fire extinguishers & Lifeslings

Everyone I talk to says yearly and yet I can't find the regulation that states it clearly. Any Canadians have an idea? Alan Liles SV Elendil Vancouver BC > On Jun 29, 2018, at 12:21 PM, Persuasion37 via CnC-List > wrote: > > Al > > You may be looking at the wrong standard. > > From Transpo

Re: Stus-List checking fire extinguishers & Lifeslings

I haven’t seen it, either. As far as I know, as long as your extinguisher has a best before date that is not past, it is good to go. Marek Ottawa, ON From: CnC-List On Behalf Of Alan Liles via CnC-List Sent: Saturday, June 30, 2018 19:04 To: cnc-list@cnc-list.com Cc: Alan Liles Subject: Re: S

Re: Stus-List downwind polars

It really depends upon the wind strength and conditions. Sometimes in light air dead downwind doesn’t work very well as the boat sails over itself and stalls, in these situations you may make better speed reaching, it all depends upon your VMG. Rod C&C 99 2004 From: CnC-List On Behalf

Re: Stus-List checking fire extinguishers & Lifeslings

Pretty sure these regulations only apply to commercial vessels, or ones with >12 passengers. From: CnC-List on behalf of Alan Liles via CnC-List Sent: June 30, 2018 4:04 PM To: cnc-list@cnc-list.com Cc: Alan Liles Subject: Re: Stus-List checking fire extinguis

Re: Stus-List checking fire extinguishers & Lifeslings

Gee I didn’t know I had lost my citizenship. I hope my American brothers adopt me. Mike PERSUASION C&C 37 K/CB Long Sault > On Jun 30, 2018, at 7:04 PM, Alan Liles via CnC-List > wrote: > > Everyone I talk to says yearly and yet I can't find the regulation that > states it clearly. Any Cana

Re: Stus-List checking fire extinguishers & Lifeslings

Best before date. Where’s that found? Mike PERSUASION C&C 37 K/CB Long Sault > On Jun 30, 2018, at 7:34 PM, Marek Dziedzic via CnC-List > wrote: > > I haven’t seen it, either. As far as I know, as long as your extinguisher has > a best before date that is not past, it is good to go. > > Ma

Re: Stus-List checking fire extinguishers & Lifeslings

Sorry, Mike. I didn't mean to imply that you're not Canadian. It's hard to let go of something you've believed for a long time. Cheers, Al > On Jun 30, 2018, at 6:15 PM, Persuasion37 via CnC-List > wrote: > > Best before date. Where’s that found? > > Mike > PERSUASION > C&C 37 K/CB > Long