Splaying Gunwhale-hung Launching Trolley |
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Captain Morgan 
Far too distracted from work 
Joined: 03 Sep 08 Location: United Kingdom Online Status: Offline Posts: 211 |
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 Topic: Splaying Gunwhale-hung Launching TrolleyPosted: 15 Feb 10 at 9:14pm |
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Thanks for those ideas, I'll give the ratchet strap technique a go. I was thinking about resorting to foam pipe lagging bound on with PVC tape! (A worrying solution to most problems in my line of work!) JimC - having never heard of the Spanish Windlass, I've had a look into it. A nifty technique, but looks comparatively complicated when compared to ratchet straps. (It also sounds like just the sort of thing that can go spectacularly badly wrong!) |
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tomoore1
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Joined: 03 Jun 08 Location: Wales Online Status: Offline Posts: 99 |
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Posted: 15 Feb 10 at 5:55pm |
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When I removed some useless padding on my 300 trolley the arms were also splayed out. To shape it back to fit the gunnel I put the boat on some grass, hooked a ratchet strap over each arm and simply cranked it on. Now it fits nicely |
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Restoring Firefly 517
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JimC
Really should get out more 
Joined: 17 May 04 Location: United Kingdom Online Status: Offline Posts: 6660 |
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Posted: 15 Feb 10 at 4:44pm |
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If the loads imposed by the boat sitting on it have been enough to splay the two sides apart then it must be reasonably malleable. Try making a spanish windlass with an old mainsheet or something. Bend almost anything with that!
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Captain Morgan
Far too distracted from work
Joined: 03 Sep 08 Location: United Kingdom Online Status: Offline Posts: 211 |
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Posted: 15 Feb 10 at 3:02pm |
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I wish it was that easy. The bow snubber was modified (the weld failed as there wasn't enough contact with the frame), and was subsequently moved and re-welded so that the snubber is a good 4" back from where it used to be. Plus, the trolley seems to have been manufactured by Agricultural Industries or Tanks Inc. - It's really solid! (Though several months of dinghy-weight has had enough of an effect, obviously.) |
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womble12345
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Joined: 14 Apr 09 Online Status: Offline Posts: 99 |
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Posted: 15 Feb 10 at 1:33pm |
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Adjust the bow snubber to hold the boat further back and bend the supports back in again.
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Captain Morgan
Far too distracted from work
Joined: 03 Sep 08 Location: United Kingdom Online Status: Offline Posts: 211 |
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Posted: 15 Feb 10 at 1:04pm |
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This weekend I noticed that my launching trolley now no longer supports my dinghy beneath the gunwhales as it's supposed to. The problem started after a replacement bow snubber was added which brought the hull forward on the trolley. Over the months, I think that this has "splayed" the two upright supports apart. It seems to have reached the point where it doesn't matter what position the hull is in, only one gunwhale is supported at any one time. Has anyone got any simple solutions to this problem? I noticed that there are trolley slings available (i.e. from Rooster), but this probably won't do the hull much good over time, will it? |
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