| Re: Mast.....Toast?
[Re: MauganN20]
#66242 02/06/06 04:11 PM 02/06/06 04:11 PM |
Joined: Dec 2005 Posts: 1,121 Eastern NC, USA tshan
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Posts: 1,121 Eastern NC, USA | I've used pieces of mast for trailer cross arms and trophies (obviously much smaller pieces).
Tom | | | Re: Mast.....Toast?
[Re: Kris Hathaway]
#66245 02/06/06 05:00 PM 02/06/06 05:00 PM |
Joined: Nov 2005 Posts: 1,203 uk TEAMVMG
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Joined: Nov 2005
Posts: 1,203 uk | TOAST
Carbon ones make very good mast racks on motorhomes I have started collecting up other peoples aluminium ones as their scrap value is not too bad at the moment
Paul
teamvmg.weebly.com
| | | Re: Mast.....Toast?
[Re: Kris Hathaway]
#66248 02/06/06 10:04 PM 02/06/06 10:04 PM |
Joined: Nov 2005 Posts: 337 Victoria, Australia C2 Mike
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Joined: Nov 2005
Posts: 337 Victoria, Australia | Is this mast a gonner? Its above the spreaders and below the shroud hounds. Gorner! Michael
Last edited by TigerMike; 02/06/06 10:06 PM.
| | | Re: Mast.....Toast?
[Re: Darryl_Barrett]
#66250 02/07/06 07:30 AM 02/07/06 07:30 AM |
Joined: Jul 2001 Posts: 552 brobru
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Posts: 552 | Hey, I still see a good mast for recreational use or a spare. 1. Cut at 'kink'. 2. find similar mast,.....cut a 2 foot piece from that for the sleeve. 3. slit the sleeve at the track end....maybe cut 1/4 inch or so up this slit...top to bottom...( or cut out the track ) 4.fair out the original mast at the sections. 5. place the internal sleeve, assemble, epoxy,.,pop rivet,...seal.....done. It may be a little stiffer than the original, but down here, we repair this all the time. Heck, my Hobie 33 comes with a stock sleeved mast and it has been fine since 1985. regards, Bruce I17 St. Croix USVI | | | Re: Mast.....Toast?
[Re: Darryl_Barrett]
#66251 02/07/06 08:58 AM 02/07/06 08:58 AM |
Joined: Nov 2005 Posts: 1,203 uk TEAMVMG
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Posts: 1,203 uk | I don't know why anyone would ever throw away a carbon mast if it were broken. We have internally carbon sleeved a couple of snapped carbon masts........ If you claim on insurance for a new one[in the UK], the insurance company asks for the bottom 2' to be sent in the post to prove that the mast is being scrapped! This mucks things up. I would not dream of throwing anything carbon away, the stuff is worshiped in this household. It just waits to be recycled into something else - like a lightweight mast rack!
Paul
teamvmg.weebly.com
| | | Re: Mast.....Toast?
[Re: Kris Hathaway]
#66252 02/07/06 02:46 PM 02/07/06 02:46 PM |
Joined: Jun 2001 Posts: 493 Minnesota Jeff Peterson
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Posts: 493 Minnesota | What would happen, if you had your friendly aluminum welder, completely fill in the dent and grind it flush? (My welder works for cheap and for kicks I'd give it a shot, if the rest of the boat is old enough to risk further damage.)
Jeff Peterson H-16 Sail #23721 Big Marine Lake, MN
| | | Re: Mast.....Toast?
[Re: Jeff Peterson]
#66253 02/07/06 03:49 PM 02/07/06 03:49 PM |
Joined: Nov 2005 Posts: 337 Victoria, Australia C2 Mike
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Posts: 337 Victoria, Australia | What would happen, if you had your friendly aluminum welder, completely fill in the dent and grind it flush? (My welder works for cheap and for kicks I'd give it a shot, if the rest of the boat is old enough to risk further damage.) You could give it a shot however I suspect the heat involved will change the temper of the surrounding material which will probalby cause failure near the weld (but the weld would probalby be fine ). You could try to re-temper the mast but I don't like your chances. Good luck with it though. Michael | | | Re: Mast.....Toast?
[Re: Kris Hathaway]
#66255 02/07/06 05:55 PM 02/07/06 05:55 PM |
Joined: Jun 2001 Posts: 9,582 North-West Europe Wouter
Carpal Tunnel
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Carpal Tunnel
Joined: Jun 2001
Posts: 9,582 North-West Europe |
Filling up the dent by welding will screw up the bend characteristics of the mast and probably create high stress concentration around the inflexible repaired area making failure just next to the weld a possibility. I expect slowly growing cracks then. But this is just my personal opinion.
I did take out a similar big big myself, also on the side of the mast. However it was above the hound fitting. I opened up the mast from the top and lowered a hydraulic vice into the mast. This thingy I lend from an auto body repair shop and it had two arms that could be pushed outward by the hydraulic pressure. I cut to pieces of hardwood in the shape of the sides of the mast and fitted them to the stainless steel arms of the vice. Then I pomped out the dent by pushing the dent outward from the inside. The mast also straightened as a result. I sailed with that mast and boat for 3 more season (even adding a spinnaker to it) without any troubles. I must say however that the bend characteristics were different; I put this down to the deformation hardening. However it was a recreational boat for me and I could live with some reduction in sailing behaviour in favour of not spending 1500 Euro's for a new mast on a 2000 Euro's and 14 years old boat.
So in my experience the best way to take out this dent is to push it out from the inside. You may try car jacks or whatever for this purpose. Anything that will fit inside the mast section and is able to develop a significant force.
After I pushed out the dent I didn't do anything to the mast except put the top fittings back on.
Wouter
Wouter Hijink Formula 16 NED 243 (one-off; homebuild) The Netherlands
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