I raced with the one we broke, but most of the other boats I race on used fixed lengths. It may be that the guy who owns it was too cheap or lazy to carry both a spinnaker pole and a whisker pole (having sailed with this guy a lot, my money’s on cheap). Selden lists adjustable spinnaker poles on their website, but they may intend it for a whisker pole and the terminology is a language artifact. Forespar thinks the compression loads (which determine the size of the whole shebang, as the poles are always buckling critical) on a whisker pole are higher than those on a spinnaker pole, maybe because the sheeting angle off the end of the pole is tighter, or the foot tension of the genny is higher than that on the spinny, or some combination, I dunno.
Keith Sneddon From: [email protected] [mailto:[email protected]] On Behalf Of ChefYaz Sent: Wednesday, June 30, 2010 6:26 PM To: [email protected] Subject: RE: [IC27A] Re: spinnaker pole Spinnaker pole length, on most boats, is the same as the “J” measurement. “J” is measured as the length from where the forestay intersects the deck to the leading edge of the mast. On the vast majority of boats this measurement is somewhat hard for an owner to make properly as the spot one would need to access on the mast is inside the cabin and in the case of the Cat 27…there’s no mast there. Although some “one design” classes are designed to use a “penalty” pole (longer than “J”) most boats are designed to use a “standard” length pole and every handicap rating body I have ever been involved with will penalize you for the use of a pole longer than “J” Some of the older and much larger racing boats did carry 2 poles for the ease of jibing but they are the same length and is illegal to “fly” both at the same time. I’ve been involved with racing for 50 years, worked for a sail loft and rigging shop and I’ve never seen an adjustable spinnaker pole. Which is not to say somebody hasn’t done it but it would have to be one hefty whisker pole to be able to handle the loads of anything above “light air” Mark, Gratis (6115) NOLA From: [email protected] [mailto:[email protected]] On Behalf Of Sneddon, Keith - ES Sent: Wednesday, June 30, 2010 12:38 PM To: [email protected] Subject: RE: [IC27A] Re: spinnaker pole The adjustable whisker pole I was working on was from a much bigger, faster boat (an Albin Express 34). This pole would be more that strong enough for a Cat 27 spinnaker. I was just making a point. Keith Sneddon From: [email protected] [mailto:[email protected]] On Behalf Of Matthew Sent: Wednesday, June 30, 2010 1:16 PM To: [email protected] Subject: [IC27A] Re: spinnaker pole I was under the impression that an adjustable whisker pole wouldn't be suitable for spinnaker service, as it won't stand up to the loads. Am I wrong? Perhaps I should just rig up a lifting bridle to my whisker pole and see how it works out with the spinnaker? By the way, the Forespar website has a table of suggested lengths for different boat modes, and suggests the correct spinnaker pole length is 11'1" for a C27 standard rig, based on its "J" dimension. Matthew Chachere "Bochinche" Brooklyn/Sag Harbor NY --- In [email protected]<mailto:IC27A%40yahoogroups.com>, "Sneddon, Keith - ES" <keith.sned...@...> wrote: > > I depends on your spinnaker size and configuration, the wind strength, the > sea state, and your point of sail. That’s why they’re usually adjustable, > and/or you carry a couple different lengths. There is a legal maximum. > Somebody else probably knows what that is. > There are a lot of on-line vendors for aluminum tube. You probably want it > clear anodized in 6061-T6. McMaster will absolutely nail you on shipping. > Higher strength alloys (such as 2XXX or 7XXX) usually don’t make sense, as > the pole is buckling, not strength, critical, and the higher strength/cost > alloys generally do worse on corrosion concerns. > I rebuilt an adjustable really big whisker pole that had failed (on the > internal smaller diameter section) in buckling. If you hunt around, you can > probably find a damaged pole, and scavenge off the adjustable system. All I > did was accurately measure the damaged section, and hunt down the equivalent > tube on-line. A little measuring, a little cutting, a little drilling, a > little sealant, a couple of rivets, and bing-bang-boom, a new pole. > > Keith Sneddon > > From: [email protected]<mailto:IC27A%40yahoogroups.com> > [mailto:[email protected]<mailto:IC27A%40yahoogroups.com>] On Behalf Of > Mark Robertson > Sent: Wednesday, June 30, 2010 9:19 AM > To: IC27A@ > Subject: Re: [IC27A] spinnaker pole > > What length should a spinnaker pole be for a C27? > > >>> Read Howarth <rshowa...@...> 6/29/2010 5:34 PM >>> > > Try McMaster-Carr for an extrusion. > Sent from my IPhone > > Read S Howarth > TBG West > Manager Group Benefits > 6077 Bristol Parkway > Culver City, California 90272 > 310-573-7419 > rhowa...@...<mailto:rhowa...@...> > 310-463-4234 cell > > > > > On Jun 29, 2010, at 3:25 PM, johnr...@...<mailto:johnr...@...> wrote: > > > Sounds OK as long as the extrusion you got will handle the loads that a > working pole has to carry. > > John McLaughlin > 1975 SR #1994 > "Shambhala" > > > -----Original Message----- > From: Ivan <deweyweeken...@...<http://yahoo.com>> > To: [email protected]<mailto:IC27A%40yahoogroups.com> > Sent: Tue, Jun 29, 2010 5:58 pm > Subject: Re: [IC27A] spinnaker pole > > Wow! Way to go man. What were these fittings, and is this an adjustable pole? > You should show off your work and show us some pictures. > > -Ivan > Sent Using my Blackberry 8350i > ________________________________ > From: masad...@... > Sender: [email protected]<mailto:IC27A%40yahoogroups.com> > Date: Tue, 29 Jun 2010 17:55:27 EDT > To: <[email protected]<mailto:IC27A%40yahoogroups.com>> > ReplyTo: [email protected]<mailto:IC27A%40yahoogroups.com> > Subject: Re: [IC27A] spinnaker pole > > > I shopped around for a metals/aluminum distributor and bought a 12 ft > extrusion for about $100, ordered end fittings from Defender and put it > together myself. Total coast was about $200. > > Chuck Fogel > Bloody Mary #2381 > Montrose Harbor, Chicago > > In a message dated 6/29/2010 1:50:10 P.M. Central Daylight Time, chach...@... > writes: > > I need a spinnaker pole for my C27 (which came from the PO with spinnaker but > no pole, other than an adjustable whisker pole). The Forespar pole carried by > West and others seems a bit pricey at over $500. Any other suggestions? Used > would be fine, if you know of one. > > Matthew Chachere > "Bochinche" > Brooklyn/Sag Harbor NY > > > ________________________________ > This e-mail and any files transmitted with it may be proprietary and are > intended solely for the use of the individual or entity to whom they are > addressed. If you have received this e-mail in error please notify the sender. > Please note that any views or opinions presented in this e-mail are solely > those of the author and do not necessarily represent those of ITT > Corporation. The recipient should check this e-mail and any attachments for > the presence of viruses. ITT accepts no liability for any damage caused by > any virus transmitted by this e-mail. >
