Dennis, I agree, and have a "calibrated" batten on mine as well, but I still need the designer to tell me when I am exceeding the design limits of the hard point where the back stay attaches to the transom.
Gary S/V Kaylarah '90 C&C 37+ East Greenwich, RI, USA ~~~~~~~_/)~~~~~~ On Thu, Aug 2, 2018 at 8:13 PM, Dennis C. via CnC-List < cnc-list@cnc-list.com> wrote: > I never go by lbs, psi, whatever. What matters is sail shape and forestay > sag (or lack thereof). I have a small dinghy batten taped to the AFT side > of the cylinder of the backstay adjuster. On the batten are small wraps of > green, yellow, red and black tape. These are positioned so the fitting on > the backstay will line up with them when the rig is tensioned. On an > upwind leg of a race, we tension the forestay to shape the sail how we like > it, then look at the batten and take note of which tape mark the fitting > lines up with. On the next upwind leg, if the wind and waves are the same, > we tension the rig to the same piece of tape. > > Green = light breeze. Yellow = moderate breeze. Red = heavy breeze. > Black = OMG, we're going to die! > > The tape wraps on the batten are MUCH easier to see than the gauge. > > If you look closely, you can see the batten on the aft side of the > cylinder here: > > https://drive.google.com/open?id=1zzjRreszZF9YCbb5zBfTLGBuVtim4mcZ > > That's not a good picture. It was taken to show the jury rig to tension > the backstay after the adjuster lost the top seal. :( > > Dennis C. > Touche' 35-1 #83 > Mandeville, LA > > On Thu, Aug 2, 2018 at 4:52 PM, Gary Russell via CnC-List < > cnc-list@cnc-list.com> wrote: > >> Does anyone know the maximum back stay tension allowed on the C&C >> 37+. My problem is the hydraulic back stay adjuster pressure gauge has >> failed and I don't even know what the maximum pressure spec allowed is, >> anyway. I'm concerned that at least one owner has had the attachment >> points on the transom fail presumably due to excessive tension/pressure. >> Frankly, the attachment points don't instill a lot of confidence as there >> aren't any backing plate; just a couple of holes drilled in the hull. I'd >> feel more comfortable putting a Loos gauge on the wire and calibrate the >> extension of the back stay adjuster to it. Any thoughts / ideas out there? >> >> Live Slow / Sail Fast, >> Gary >> S/V Kaylarah >> '90 C&C 37+ >> East Greenwich, RI, USA >> ~~~~~~~_/)~~~~~~ >> >> >> _______________________________________________ >> >> 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 > > >
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