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Just for you, Grumpf

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G.R.F. View Drop Down
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Post Options Post Options   Quote G.R.F. Quote  Post ReplyReply Direct Link To This Post Topic: Just for you, Grumpf
    Posted: 06 Apr 09 at 2:33pm
Well another way of explaining it is to imagine the two trapeze wires
attached to the side of the boat and the overhang bit you sit on detaches
and swings out when you need it to is I guess a simpler way of putting it.


Would you then need mast halyards?

Not sure, depends on how well the side locks back in I guess, could be a bit
of a disaster in a windward capsize if you are out on the swing wire, then
again no it should return to the hull if you fell off it.

Not sure, be an interesting concept to try out.
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Post Options Post Options   Quote JimC Quote  Post ReplyReply Direct Link To This Post Posted: 06 Apr 09 at 2:21pm
Originally posted by G.R.F.

like a playground swing affair, attached by wire

You mean a wire at each end? So two trapeze wires? I didn't fancy the chances of getting onto that reliably: that was why I drew a single wire version... How big do you visualise this thing being - I suppose if it were a metre or more long it might be possible.

Something like this?



Edited by JimC
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G.R.F. View Drop Down
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Post Options Post Options   Quote G.R.F. Quote  Post ReplyReply Direct Link To This Post Posted: 06 Apr 09 at 2:16pm
Originally posted by JimC

So you mean something like this? I'm not convinced of the
advantages you claim!

06_123757_Graphic1.gif">


No not quite, just the bottom bit, kind of a bench made from the
gunwhale overhang, like a playground swing affair, attached by wire with
maybe a guide so it returns home, maybe a bit of a buoyancy half circle
underside can't remember why I thought that bit.

The advantages would be no significant weight increase and the wire
supports the mast at the head, no need for sliding mechanism like the
Canoe or that Skate, other than making it work and the limitation of the
crew leg length, I can't think of any serious disadvantage.

Unfortunately I'm in a bit of a work frenzy mode at the moment so
haven't got time to draw it up properly, but I'm sure it's a viable
alternative to racks, trapezes and or sliding seat mechanism.

Edit PS I was seriously tempted by a canoe that was at the Dinghy show,
blue, all carbon jobby, couldn't see any way of steering it I guess there
must be a wiggle stick thing somewhere, it just wasn't apparent or do
they just use the force like us?

Edited by G.R.F.
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Post Options Post Options   Quote charlie1019 Quote  Post ReplyReply Direct Link To This Post Posted: 06 Apr 09 at 12:51pm

Originally posted by G.R.F.



Really nicely balanced, wide enough yet not too wide.

But light enough so I can launch and recover it myself, all up less than 50
kgs

.

 

GRF, the new International Canoes are only 50kg all up, so it can be done!

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Post Options Post Options   Quote timnoyce Quote  Post ReplyReply Direct Link To This Post Posted: 06 Apr 09 at 12:40pm




With that much righting moment they must be obscenely fast upwind when powered up!
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Post Options Post Options   Quote Merlinboy Quote  Post ReplyReply Direct Link To This Post Posted: 06 Apr 09 at 12:39pm

Yeah Grumpf the international Canoe.  They even do it with a 23sqr metr assy Kite.  You can also fit one with a kick up centre board, and the dagger board cases have a special kick up system should you strike the ground landing.

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Post Options Post Options   Quote JimC Quote  Post ReplyReply Direct Link To This Post Posted: 06 Apr 09 at 12:35pm
So you mean something like this? I'm not convinced of the advantages you claim!



Edited by JimC
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Post Options Post Options   Quote timnoyce Quote  Post ReplyReply Direct Link To This Post Posted: 06 Apr 09 at 12:26pm
So like a sliding seat on a Canoe? Or are you thinking about having the pivot point in the middle of the boat, and then having it swivel from out one side, round the transom, and then out the other side?

Maybe a little Paint diagram to illustrate would be good here Grumph.

There is a class of boat down under which has twin sliding seats. I forget the name of it right now but if I find it I'll post a link.

Edit: Found it... Skate


Edited by timnoyce
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G.R.F. View Drop Down
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Post Options Post Options   Quote G.R.F. Quote  Post ReplyReply Direct Link To This Post Posted: 06 Apr 09 at 11:57am
So, I had another flash of inspiration this morning and wondered if it has
been tried elsewhere already, or indeed if the idea is practical.

It concerns the old problem Racks v Trapeze and I wondered if anyone
had ever considered a swinging seat. In other words detach a part of the
side of the hull (or an additional bit) you sit on, by kicking out still sitting
on it (like a playground swing style)and it attached by trap wire in a guide
if necessary and held back in place by bungee cords or whatever.

When not being used it would simply swing back into place making the
bear offs simple on the lee side.

One or two folk could sit on it and it would support the hiking moment
without pressure at the back of the legs and you should get out as far as
a trapeze without the need to hook in and out, I guess longer legged folk
would get an advantage, but then I guess they get that on a trapeze
anyway.

Anyone seen anything like it?




Edited by G.R.F.
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Post Options Post Options   Quote Rupert Quote  Post ReplyReply Direct Link To This Post Posted: 03 Apr 09 at 9:48pm
I'm not, but hull shape is a compromise. It is difficult to go faster than the 505 in all conditions, so in order to do so in some, the all round ability has been compromised. I suspect you will find the Alto slower than the 505 in almost all conditions, as the compromise has been made for ease of handling. The 505 is a work of genius, and that is timeless.
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