rudder pivot hole

   if only it was that simple. unfortunately no, i checked that out.the only reason that leads me to believe the hole is to blame is the difference when pulling down with rope instead of 'throwing' blade down underwater.

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tmoore Send Private Message Find Member's Posts Visit Member's Homepage Really should get out more Joined: 01 Nov 07 Location: Wales Online Status: Offline Posts: 880	Post Options Post Reply Quote tmoore Report Post Quote Reply Topic: rudder pivot hole Posted: 04 Feb 08 at 7:48pm
	if only it was that simple. unfortunately no, i checked that out.the only reason that leads me to believe the hole is to blame is the difference when pulling down with rope instead of 'throwing' blade down underwater.
	Landlocked in Africa RS300 - 410 Firefly F517 - Nutshell Micro Magic RC yacht - Eclipse

Smight at BBSC Send Private Message Find Member's Posts Really should get out more Joined: 09 Jan 07 Location: Great Britain Online Status: Offline Posts: 1129	Post Options Post Reply Quote Smight at BBSC Report Post Quote Reply Posted: 04 Feb 08 at 5:44pm
	No i mean the downhaul purchase is too short so that when you max out the downhaul the rudder isn't all the way down.
	RS600 988

tmoore Send Private Message Find Member's Posts Visit Member's Homepage Really should get out more Joined: 01 Nov 07 Location: Wales Online Status: Offline Posts: 880	Post Options Post Reply Quote tmoore Report Post Quote Reply Posted: 04 Feb 08 at 5:22pm
	yes, the blade has that on the top. it looks as if the top layer of the foil is just peeling slightly. i was going to sort that out aswell. but thought getting the hole right was more important. tom
	Landlocked in Africa RS300 - 410 Firefly F517 - Nutshell Micro Magic RC yacht - Eclipse

Fin. Send Private Message Find Member's Posts Posting king Joined: 12 Feb 07 Location: Ireland Online Status: Offline Posts: 128	Post Options Post Reply Quote Fin. Report Post Quote Reply Posted: 04 Feb 08 at 10:38am
	Hi Tom The blade must not be allowed to raise at all, this is where the weather helm comes from. I had similar problem with a old RS200. After launching and pulling on the downhaul, I'd sail (depowered) till clear, then stretch over the stern and grab a hold of the trailing edge of the rudder(underwater). then, I'd gently push it forward, to ensure it was hard against the rudder stock. Tighten both wing-nut and downhaul... then go sailing. NOTE - there used to be a small piece inside the stock preventing the front of the blade bashing into the stock. this was removed to enable the blade to go forward as much as possible. i.e If not gentle when not there; when lowering blade stock will cut a small groove into top of blade. .

tmoore Send Private Message Find Member's Posts Visit Member's Homepage Really should get out more Joined: 01 Nov 07 Location: Wales Online Status: Offline Posts: 880	Post Options Post Reply Quote tmoore Report Post Quote Reply Posted: 30 Jan 08 at 7:17pm
	you mean im not pulling the rope down all the way??? im not sure it is that as whenever i 'throw' the blade downwards and it thunks against the stop its fine, when i try and pull it down using the rope i get loads of weather helm. This led me to investigate. So would this be the cause? or can i forget it and put it all back together? tom
	Landlocked in Africa RS300 - 410 Firefly F517 - Nutshell Micro Magic RC yacht - Eclipse

craiggo Send Private Message Find Member's Posts Really should get out more Joined: 01 Apr 04 Location: United Kingdom Online Status: Offline Posts: 1810	Post Options Post Reply Quote craiggo Report Post Quote Reply Posted: 30 Jan 08 at 7:16pm
	Repairs for this have already been suggested. Open out the hole slightly, fill with epoxy (West & Colloidal Silica, or Sp & microballoons), then re-drill a new hole in the right place. Its also a good idea to fit a plastic tube over the bolt, if you can find one, it will help spread the load a bit and slow down future wear. Best thing to do is ease off the wing nut before you pull the rudder down and then before you get any speed up, tighten the wingnut as much as you can. When you pull the board up you'll need to ease the wingnut again.

Smight at BBSC Send Private Message Find Member's Posts Really should get out more Joined: 09 Jan 07 Location: Great Britain Online Status: Offline Posts: 1129	Post Options Post Reply Quote Smight at BBSC Report Post Quote Reply Posted: 30 Jan 08 at 7:09pm
	Maybe the downhaul isn't tight enough so the rudder isn't going down the way? Happened to me on the rs 600.
	RS600 988

alstorer Send Private Message Find Member's Posts Really should get out more Joined: 02 Aug 07 Location: Cambridge Online Status: Offline Posts: 2899	Post Options Post Reply Quote alstorer Report Post Quote Reply Posted: 30 Jan 08 at 7:06pm
	Microballoons are small spheres, of varying materials. Added to an epoxy (or other resin, for that matter, but you're best off with a marine grade epoxy) they make for a good filler that's much easier to sand. However, that's where helpfulness runs out, as at work we buy them in large amounts from chemical suppliers.

tmoore Send Private Message Find Member's Posts Visit Member's Homepage Really should get out more Joined: 01 Nov 07 Location: Wales Online Status: Offline Posts: 880	Post Options Post Reply Quote tmoore Report Post Quote Reply Posted: 30 Jan 08 at 6:15pm
	would it be worth enlarging the hole before filling it so that it has like a tube of this epoxy where the bolt travels through. by epoxy i assume you meant the yellow/orange globby stuff which is impossible to sand (well slow). also, what are the microbaloons things? and where would i get them from? thank tom
	Landlocked in Africa RS300 - 410 Firefly F517 - Nutshell Micro Magic RC yacht - Eclipse

Ross Send Private Message Find Member's Posts Visit Member's Homepage Really should get out more Joined: 02 May 07 Online Status: Offline Posts: 1163	Post Options Post Reply Quote Ross Report Post Quote Reply Posted: 29 Jan 08 at 11:22pm
	I have the same sort of issue except I have a butterfly twisty thingy as well as a seporate pin that goes through the stock and blade to hold it in place. Mine has started to eat into the blade a bit and as a result the blade is rising (intense Cherub blasting...). At the moment there is thin pin in the high load a part of the blade so I'm putting a new fatter pin much nearer the piviot=less load=no blade munching=happy sailing.
	Ross If you can't carry it, don't sail it!