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 <[email protected]> On Behalf Of David Knecht via CnC-List Sent: June-30-18 7:54 PM To: CnC CnC discussion list <[email protected]> Cc: David Knecht <[email protected]> Subject: 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, 2018, at 12:17 PM, Ronald B. Frerker via CnC-List <[email protected] <mailto:[email protected]> > wrote: 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 point of reefing or smaller jibs, all bets are off on that theory. Then wing & wing will often be faster. Ron Wild Cheri C&C 30-1 STL -----Original Message----- From: David Knecht via CnC-List <[email protected] <mailto:[email protected]> > To: CnC CnC discussion list <[email protected] <mailto:[email protected]> > Cc: David Knecht <[email protected] <mailto:[email protected]> > Sent: Sat, Jun 30, 2018 7:48 am Subject: 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 pole makes a huge difference going downwind wing on wing. I am wondering if the polars take this into account. Dave Aries 1990 C&C 34+ New London, CT <pastedGraphic.tiff> _______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray _______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray <pastedGraphic.tiff>_______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- <https://www.paypal.me/stumurray> https://www.paypal.me/stumurray Dr. David Knecht Professor of Molecular and Cell Biology University of Connecticut 91 N. Eagleville Rd. Storrs, CT 06269-3125 --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus
_______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
