Listers remember this thread? Well, I executed the repair plat outlined below. Pictures at https://drive.google.com/open?id=11rBlluc2BCDxmjNYQSf7aFsJZBDlt3Dq <https://drive.google.com/open?id=11rBlluc2BCDxmjNYQSf7aFsJZBDlt3Dq>.
Many thanks to Dennis, as always. Cheers, Randy Stafford S/V Grenadine C&C 30-1 #7 Ken Caryl, CO > On Sep 25, 2018, at 10:44 AM, Randy Stafford via CnC-List > <cnc-list@cnc-list.com> wrote: > > Thank you all for your replies and suggestions, some of which were off-list. > > Responding to points in the order received: > > 1. "Is it safe to sate that the main mast damage is from the screws ripping > out of the mast itself?” > The main mast damage IMO is the indentation from the aft edge of the spreader > bracket plate. The screw holes are also damaged, but fixable. > > 2. "From the pictures it seems that the mast was horizontal on the transport > trailer and the spreader took a shot that pushed it back, parallel to the > direction of the mast?” > The mast is horizontal on a set of custom sawhorses I fab’d - the top pieces > are scalloped per the cross-section of the mast. While the rig was still up > and the boat was being towed forward, the starboard spreader took a shot from > some tree branches which twisted it aft. > > 3. "I think you need to have a conversation with the yard about the damage.” > There was no yard involved. The boat was being towed by my good buddy on my > crew (the same guy who fab’d my new teak handrails and drink holders), and > hitting the trees on the way to the gin pole was an accident. I was there in > another car, and saw all the tree trimmings, but I didn’t notice the damage > when we dropped the mast. I only noticed it later when removing the > spreaders to tidy up the mast storage for the offseason. > > 4. "You could take it [the bracket] to a metal shop and have them straighten > it or make a new one. Up to you. To straighten the tube part …" > A side-by-side comparison with the port bracket (newly uploaded IMG_0240.jpg > at https://drive.google.com/open?id=1FI3QhFi82jrSOzQtpJ-9Z54XK3lHvlIr > <https://drive.google.com/open?id=1FI3QhFi82jrSOzQtpJ-9Z54XK3lHvlIr>) > suggests the tube part isn’t straight. More likely the backing plate is > warped, making the tube look bent aft. > > 5. "You did not send any photos of the spreader. Was it bent or weakened?” > The spreader itself is 1 5/8” OD thick-wall aluminum tube, and was not bent > or weakened in the incident. See newly-uploaded IMG_0243.jpg and > IMG_0245.jpg at > https://drive.google.com/open?id=1FI3QhFi82jrSOzQtpJ-9Z54XK3lHvlIr > <https://drive.google.com/open?id=1FI3QhFi82jrSOzQtpJ-9Z54XK3lHvlIr>. > > Based on input received, I think I will go the following route: > * repair the screw holes in the mast - flatten by pounding / grinding, then > drill larger and re-tap > * fab a reinforcement plate to fasten between mast and spreader bracket, and > shorten spreader accordingly > * straighten the bracket (or fab a new one) and fasten to the reinforcement > plate and mast > * proceed with painting plans > * not file an insurance claim > > Fortunately I have a nice long offseason, as my lake closed 1.5 months early > this year, and will open one month late next year, due to reservoir expansion > and related reconstruction (https://chatfieldreallocation.org > <https://chatfieldreallocation.org/>). The good news is next spring we’ll > have a brand-spanking-new marina facility! So I want Grenadine to be looking > sharp :) Meanwhile I’ll occupy myself with ocean sailing - going to Catalina > the next two weekends in a row, and probably the Virgins in the spring. > > The other good news is that my rebuilt mast step supports are solid as rock > after two seasons. Removed the step and inspected them yesterday. This > season in particular we had some strong winds that I’m sure stressed the rig. > Twice I tore a headsail when the wind suddenly jumped from 10 to 35 mph, and > another time I was caught in 48 mph under main only. Partway through the > season I noticed slack in the backstay and wondered if the step had settled, > but no sign of that, even after cranking up the backstay tension from time to > time. I’d set the rake at the start of the season but never re-checked it. > > Thanks again for all your input. I don’t know what I would do without this > mail list. > > Cheers, > Randy > > >> On Sep 24, 2018, at 10:52 PM, Randy Stafford <randal.staff...@icloud.com >> <mailto:randal.staff...@icloud.com>> wrote: >> >> Listers I am in need of your wisdom. >> >> My boat is hauled for the offseason, and I dropped the mast again to >> facilitate towing the boat somewhere for painting. >> >> Yesterday I discovered damage to the mast and starboard spreader bracket. I >> suspect the damage occurred when the boat was being towed to the gin pole to >> take the rig down - the rig was towed through some non-trivial tree branches >> on the starboard side, resulting in substantial tree trimmings on the boat >> and on the ground. >> >> Supporting that theory, the spreader bracket and mast show damage consistent >> with a head-on force levering the spreader aft - the spreader bracket plate >> is bent outboard on the aft side, and the mast has an indentation at the aft >> edge of the spreader bracket plate. Also the screw holes in the mast for >> the forward part of the spreader bracket plate are pulled out (that’s how I >> first noticed the damage - those two screws were pulled out). >> >> I’ve put pictures at >> https://drive.google.com/open?id=1FI3QhFi82jrSOzQtpJ-9Z54XK3lHvlIr >> <https://drive.google.com/open?id=1FI3QhFi82jrSOzQtpJ-9Z54XK3lHvlIr>. >> IMG_0227.jpg is of the mast where the starboard spreader bracket fastens. >> The mast is laying horizontally with the forward edge up, and the picture is >> taken from “below” looking “aloft”. >> IMG_0234.jpg is looking at the aft side of the starboard spreader bracket, >> laying on its plate on my workbench. >> IMG_0237.jpg is looking at the bracket plate from above, with the tang down. >> IMG_0238.jpg is also looking at the bracket from “above”, but with the plate >> flat (I wish) on the workbench, and the tang obscured by the tube. >> >> In the photos of the bracket you can see the deformation of the plate. >> >> So, my questions to you listers: >> 1. How catastrophic is this? Am I looking at mast replacement? >> 2. Thoughts on repair strategies? (esp. for the mast - I can probably get a >> new bracket fab’d, and can enlarge and re-tap the screw holes) >> 3. To make an insurance claim or not? >> >> Note I have the port spreader bracket as a template and for fit-testing etc. >> It’s undamaged (as is the port side of the mast) and symmetric with the >> starboard bracket save for the location of the set screw hole for the >> spreader. >> >> Grateful for any wisdom you can share. >> >> Thank You, >> Randy Stafford >> S/V Grenadine >> C&C 30-1 #7 >> Ken Caryl, CO >> > > _______________________________________________ > > 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
