Stus-List Technical sail discussion

2014-05-07 Thread Dennis C. via CnC-List
I recently re-filed my PHRF certificate to get +6 seconds for a roller furler. Subsequently, I just had the luff my Mylar/Kevlar 155 cut down to fit on the furler. My sailmaker cut a bunch off the foot. I was chatting about loosing the sail area with one of the really good sailors in the

Re: Stus-List Technical sail discussion

2014-05-07 Thread Joel Aronson via CnC-List
Dennis, My limited understanding of aerodynamics is that if the foot is not on the dock then the higher pressure is allowed to leak under the foot to the low pressure side, diminishing lift. That's why they now have tips on airplane wings. If the cabin causes upward deflection, that may be more

Re: Stus-List Technical sail discussion

2014-05-07 Thread Ron Casciato via CnC-List
Dennis: Now if you want another 9 secondsditch the spinnaker pole and declare “no pole” and go straight to your ASYM…Ron C. From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Joel Aronson via CnC-List Sent: Wednesday, May 07, 2014 8:59 AM To: Dennis C.;

Re: Stus-List Charging with engine, was mixed batteries

2014-05-07 Thread Michael Brown via CnC-List
Being concise ... The setup on the older CCs is fairly bad for bulk charging of a larger house battery bank. 1) Wiring The path had the alternator output running the distance back to an ammeter on the instrument panel, then back usually to the starter post, then possibly through a switch and

Re: Stus-List Technical sail discussion

2014-05-07 Thread Martin DeYoung via CnC-List
Calypso's headsails were also cut for a furler with the higher foot, now about 18 off the deck. We still get a significant speed bubble in the main at the mid to upper wind range for the light and heavy #1s. The bubble shows up 6' to 25' (off the deck) on the mainsail. From my miss-spent

Re: Stus-List Technical sail discussion

2014-05-07 Thread Joel Aronson via CnC-List
Martin, end plate effect is what I was thinking about. The deck is the end plate for a sweeper. Joel On Wed, May 7, 2014 at 1:32 PM, Martin DeYoung via CnC-List cnc-list@cnc-list.com wrote: Calypso's headsails were also cut for a furler with the higher foot, now about 18 off the deck.

Re: Stus-List Technical sail discussion

2014-05-07 Thread Gary Nylander via CnC-List
I don't know about your PHRF area, but Chesapeake requires that the furler drum is above deck AND you have the UV patch (heavy cloth) on both the foot and leach of the sail. Then you get the six seconds. Gary - Original Message - From: Martin DeYoung via CnC-List cnc-list@cnc-list.com

Re: Stus-List Technical sail discussion

2014-05-07 Thread Chuck S via CnC-List
Thought a furler was 3 seconds, not 6? Have to check our PHRF site. Less area but the higher foot makes it easier to skirt over the lifelines, too. When ours gets caught, I have the crew tension the sheet and I tap the lifelines from the wheel and the sail rolls right inside, and they fine

Stus-List Mixed batteries/alternators

2014-05-07 Thread Charles Nelson via CnC-List
Thanks to everyone who chimed in about these issues--a good example of the expertise on this list and your willingness to share it! It's also an illustration of the adage ...be careful what you wish for. There are so many ways to address my mixed battery issue that my head is about to explode!

Re: Stus-List Technical sail discussion

2014-05-07 Thread Dennis C. via CnC-List
Gary, You are right about the above deck furler. I'm in the Gulf Yachting Association (gya.org) Here's the rule: The PHRF committee may allow +6 seconds per mile in rating for a roller furling headsail and +12 seconds for an optional IN-MAST roller furling mainsail. Boats must have a SA/DSPL

Stus-List PHRF ratings

2014-05-07 Thread Pete Shelquist via CnC-List
I’m going to insert a comment here on keeping perspective with PHRF ratings. I recently had a conversation with an individual affiliated with our local ratings and he commented that 3 secs equates to approximately 1 boat length for every mile raced. So as nice as it is to get 3 or 6 secs,

Stus-List Shroud roller

2014-05-07 Thread David Knecht via CnC-List
My boat came with white plastic tubing on the babystay, which I am told are called shroud rollers. I was told that it protects the genoa while tacking. The tubing itself is cracked in various places and I am thinking of replacing it, but can’t find anything similar online. Does anyone know a

Re: Stus-List Shroud roller

2014-05-07 Thread Edd Schillay via CnC-List
David, I'm pretty sure I've seen them in West Marine stores in a variety of sizes with caps. All the best, Edd --- Edd M. Schillay Starship Enterprise NCC-1701-B CC 37+ | City Island, NY www.StarshipSailing.com --- 914.332.4400 |