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Chris Waite |
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Do roller-blinds like water?
I thought that was retrievers CW |
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alopenboat |
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On 25 Nov 2014 at 4:02, Chris Waite [via UK HBBR Forum] wrote:
> > > Do roller-blinds like water? > > I thought that was retrievers > Yes, but retrievers are no use when hauled up the mast (don't ask me how I know). A roller blind, on the other hand, has worked well for me so far. -- Sail when you can, row when you must, motor when you have to be at work in the morning. Alastair Law Yeovil, England. <http://www.little.jim.freeuk.com> |
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LASER41420 |
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In reply to this post by LASER41420
Hi,
Still making progress: ![]() View from the front: ![]() Seats now with webbing: ![]() Steve ![]() |
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LASER41420 |
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Hi,
One edge of cockpit now assembled, that's 15 bits of wood added! Steve ![]() ![]() |
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Port-Na-Storm |
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Open Gunwales, very nice Steve and very handy for tying things on to.
Any more thoughts on the sail plan? An Opi rig might work. Grum. |
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LASER41420 |
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This post was updated on .
Hi,
Also a good mounting platform for the rowing outriggers once the rubbing strake is fitted. On the sail front I rather like the look of this: http://www.ebay.co.uk/itm/Down-Wind-Sail-for-Open-Canoe-Easier-than-paddling-/261721886258?pt=UK_Sporting_Goods_CanoesKayaks_Rafts_SM&hash=item3cefd70e32 Ot this:http://www.ebay.co.uk/itm/Kayak-Canoe-Sail-Round-/131378761827?pt=UK_Sporting_Goods_Canoeing_Kayaking_ET&hash=item1e96c8d063 Still needs to furl or be put up/down quickly though. Steve ![]() |
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simplesimon |
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That downwind sail looks like it's held up by the crew, so it should come down quickly when the crew lets go.
No good if you're single-handed though. Maybe you need a roller-blind (roller at the bottom I suggest) ![]() Simon |
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LASER41420 |
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Well I did ask for more details on how to make this one:
http://uk-hbbr-forum.967333.n3.nabble.com/Pam-gets-a-new-roller-blind-td4027764.html#a4027841 But never did get a reply. Steve ![]() |
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Randonneur |
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Sorry Steve, I missed that request. (it was probably lost in between discussions on Forum software, markup language and why C++ is better than FORTRAN for Fourier analysis). The roller itself is based on Matt Layden's design. I'll need to take some photos of how I used it in this application. I'll try and do that this weekend. The sail itself is just a scaled down Paradox rig with the peak lifted a few degrees higher. This is the original sail it's scaled down from. From memory the boom length is about 1.7metres but I'll measure when I take the photos. I should really cut a bigger sail using another £3.99 B&Q tarp, as it needs a bit more area in light winds, but there's a complete boat waiting to be built, complete with a proper sailing rig :-) More later PP On Thu, Jan 8, 2015 at 9:17 PM, LASER41420 [via UK HBBR Forum] <[hidden email]> wrote: Well I did ask for more details on how to make this one: |
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LASER41420 |
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Hi,
More progress to report: ![]() Inside painted including lockers ![]() Floor now non-slip. ![]() Seats ready to go! Now I just glue the seats into place and then I can finish the other gunwale. Steve |
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Hi,
Does anyone have a design for a simple clip/bolt on outrigger for rowing? Basically I need to extend outwards about 12 inches either side to get the rowlocks the correct distance apart. I seem to recall Octavia had something like this? Thanks Steve ![]() |
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![]() This is what I am thinking of for my proposed row boat. The second picture show it folded in so that the main arm of the outrigger lies fore and aft. The oars, rowlocks etc are drawn semi-diagramatically in these sketches. ![]() Looking on the internet I see some people have made folding out riggers that have a horizontal hinge near the gunwhale, so that the outrigger folds over into the middle of the boat. The advantage I see for the alternative hinge arrangement shown in these sketches is that the oars rarely need to be taken out of the rowlocks since they stow fore and aft in the rowlock when the outrigger is folded in. I think that will be handy for coming up to quaysides or when in locks and the folded outriggers do not obstruct the middle of the boat. The stay that supports the main arm of the outrigger clips into a receptacle on the side deck when rowing or into a 'terry clip' type support when folded. The fore and aft position of the rowlocks is adjustable using the telescopic folding strut, which I think will avoid the need to make the footrests adjustable. Although it is not clear from the picture, the height of the rowlocks above the water is also adjustable. I thought the rowlocks might need to be raised a bit for choppy water and lowered for smooth water, but not having done any 'serious' rowing I dont really know. I have now made most of the parts for these outriggers from aluminium alloy. This is not difficult if you have even basic machine tools available, but it would be near to impossible without machine tools. The parts will be welded together, which, with the commonly available hardened alloys, unfortunately looses something like 80% of the strength in the region of the weld, although stiffness is not affected. I hope these outriggers will be strong enough that you could lift the boat from the outer ends, since someone is likely to do that sometime. To this end I have used 10g (about 3mm) thickness section and now that I have made the parts I am thinking they are a bit heavier than I would like - sometime I might put them back in the mill and see if I can make the wall thickness thinner towards the outer ends. I am sure that a simpler arrangement than I have shown would be possible, indeed I expect that Chris W. will be able to suggest something simple and also pretty. Also, with slots in the gunwhale such as you have, I can imagine something with pegs that slip down into a couple of those slots. Would probably have to drop down into the hull a bit and be secured at the lower end as well, so as to resist someone using it as a handle to lift the boat (possibly full of camping equipment) |
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Hi John,
Very interesting thanks, I was hoping to make something a bit more wooden though. Steve |
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Hi,
Maybe something like this: ![]() or this? ![]() Steve |
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The first picture looks good to me. It doesnt look like a folding arrangement but it should be easy to just lift off the gunwhales and stow in the boat. Its not clear what its made from, could be wood metal or plastic. Should certainly be possible to make the basic shape from wood then cover it with enough glass and epoxy to make it strong enough. This idea should work for a boat that only needs one rowlock position, it would be a bit more difficult to apply to a boat that needs alternative rowlock positions to cater for carrying a passenger or not. I suppose you could make the blocks that rest on the gunwhales wide enough for two sets of fixing holes for two rowlock positions.
The second picture is one of my early attempts. My design has changed slightly in detail since then but its still basically the same. |
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Yup Steve
'Octavia' had a set of wings that had three cleats under the inboard edge of each. These located into three offset holes (two in the forward section, one in the aft) in thickened inwales, all with matching sloped (45 degree) edges such that as the oar pulled the boat forward at each stroke the cleats gripped tighter into the slots. Then they had a lanyard tightened down to a cleat to prevent them slipping out at any inopportune moment - ![]() ![]() ![]() ![]() Overbuilt as ever by this old goat, weight aside, they had the extra advantage of being reversible so that fitting to the opposite side threw the rowlocks forward to a rowing position which balanced the oarsman's weight, to maintain trim against a passenger, in the event of one being aboard. And actually when in place, they also helped lock the two halves of the hull together.... Oh such a flash creep! Christo the W. |
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Hi,
No time for anything too sophisticated so I came up with this: ![]() Also managed to epoxy fibreglass sheath the hull, glue on the decks, add a laminated stem/keel and start on the rubbing strakes. ![]() See you at Letchlade! Steve |
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Better photo!
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