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Reply | Forward Message #962 of 6619 |
Re: Kiwi clown

I happen to be born a Kiwi clown myself,


I can't see a great deal of difficulty in making those pedal props
with the twisted chain, but I don't think I'd get too far against any
breeze.

I can see that the schooner rig should be heavier and harder sheeting
with two sheets to worry about; more expensive as there are two masts
to build; possibly more difficulty with sail handling as further from
the center; and possibly more interference from the ww hull. Offset
against clear deck, less clearance needed and therefore lower base of
sail area; no forestay tension; lower COE from spreading the rig
between two smaller sails; easier sail handling from having lighter,
smaller sails; less bury needed for the masts and therefore easier to
pack lw hull within load width limits; and lower rig for sailing
under bridges.
Torque on the lw hull is still there but possibly reduced- can't
presume the loading on each mast is going to be the same, especially
in a gust. The difficulty of setting stays and the dirty air
associated was one of my big concerns for the schooner rig but,
unstayed, my inclination is becoming stronger towards the schooner.
Keeping my fingers crossed on the Elementarry trials.
Will it have trapezes?
Robert
--- In harryproa@..., "Rob Denney" <proa@i...> wrote:
> G'day,
> Sculled well is an exageration. They scull. Never tried them in
tandem as
> I am usually solo. Far better performance was got sitting on the
beam and
> paddling, better again, sculling , better again would be a
dedicated Yuloh
> type set up.
>
> Nothing at all on schooner rigs, until we see how Elementarry
works. Still
> think they will be harder work, (sheeting), heavier, more expensive
and not
> as good to windward, but would love to be proven wrong.
>
> None of the masts needs the stay anymore, except maybe to control
the bend.
> So, I would suggest unstayed.
>
> Regards, (and thanks for the help with that kiwi clown)
>
> Rob
> ----- Original Message -----
> From: "Robert" <cateran1949@y...>
> To: <harryproa@...>
> Sent: Wednesday, May 19, 2004 7:22 AM
> Subject: [harryproa] sculling
>
>
> > Rob,
> > You mentioned on the proa file that the rudders when in reverse
> > sculled well. I could imagine with both sets of rudders facing
> > backwards and the the rear rudder going to windward and the
forward
> > ruder going to leeward then vise versa that the boat would snake
> > along quite well. I was wondering how efficient it was as I
imagine
> > more flexibility would be needed for max efficiency.
> > Also, for the Harry, have you done much on offering a schooner rig
> > and would the masts be semistayed or completely freestanding.
> > Robert
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> > To visit your group on the web, go to:
> > http://au.groups.yahoo.com/group/harryproa/
> >
> > To unsubscribe from this group, send an email to:
> > harryproa-unsubscribe@...
> >
> > Your use of Yahoo! Groups is subject to:
> > http://au.docs.yahoo.com/info/terms/
> >
> >




Mon May 24, 2004 2:30 am

cateran1949
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Message #962 of 6619 |
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Rob, You mentioned on the proa file that the rudders when in reverse sculled well. I could imagine with both sets of rudders facing backwards and the the rear...
Robert
cateran1949
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May 18, 2004
11:22 pm

G'day, Sculled well is an exageration. They scull. Never tried them in tandem as I am usually solo. Far better performance was got sitting on the beam and ...
Rob Denney
proaharry
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May 19, 2004
8:05 am

Oh no! Sculls! A whole new product line......
proaconstrictor
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May 20, 2004
6:59 am

Maybe we could get that nervous back and forth slating action of the becalmed sails to power the sculls/boards?...
proaconstrictor
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May 22, 2004
6:38 pm

Your comments here and in previous posts appear to be very critical. Which is a good thing when those interested in/designing/building proas start dreaming a...
bradwoodbr
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May 23, 2004
9:28 am

I've got my plans, Have you? ... all...
proaconstrictor
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May 23, 2004
3:00 pm

I happen to be born a Kiwi clown myself, I can't see a great deal of difficulty in making those pedal props with the twisted chain, but I don't think I'd get...
Robert
cateran1949
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May 24, 2004
2:30 am

... Me too. ... Bit prone to damage, as well, I think. A yuloh really appeals, I used to scull my 1.5 tonne 9m cat, but only in zero breeze. Also built a...
Rob Denney
proaharry
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May 24, 2004
4:08 am

... pretty ... You could put wings to ww with enough counterbalance to fly the lw hull, minimising wetted area in light breezes. Still don't think it would...
Robert
cateran1949
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May 24, 2004
4:54 am

... Yes & I've seen video of Ian tossing it overboard. Flapper & I got half a knot out of XL2 standing on the Denney patented crapper platforms paddling with...
Paul and Barbara Nudd
paulnudd
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May 24, 2004
10:25 am

G'day, I never said it was easy! And they didn't throw it away until they were past the Kimberleys, from where they could expect reasonable breeze for the ...
Rob Denney
proaharry
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May 24, 2004
2:36 pm

-I was thinking of a way for easy access from the water and I thought of a series of steps up the bow that had enough flex and shape to act like small one way...
Robert
cateran1949
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May 24, 2004
11:20 pm

... OK, I give up. I had enough trouble trying to understand the single-ended version. What's a ring step? Sounds like a flopper-stopper or whatever they're...
Dave Howorth
Dave_Howorth
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May 25, 2004
8:44 pm

... thought ... act ... step, ... it ... double ... Dave, Thanks for trying to understand what I was surmising. Yes, the step is the flopper stopper for the...
Robert
cateran1949
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May 25, 2004
11:28 pm

... FYI, and sorry to be offtopic for harryproa, there was a story in the US Multihulls magazine some years ago (between 3 and 12) about a swedish (or vicinity...
Robert McArthur
rj_mcarthur
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May 26, 2004
1:22 am

... along ... Part of ... derived ... front ... is a ... quickly and ... purpose. ... 12) about ... was ... IIRC ... That would be Kjell Dahlberg. See his...
jjtctaylor
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May 26, 2004
3:11 am

snip> That would be Kjell Dahlberg. See his website at ... Looked at website. I presume you change the angle of attack on those rigid wingsails when you shunt...
Robert
cateran1949
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May 27, 2004
3:47 am

Robert, We are still in the feasability stage with this. Rigid wings have not been sufficiently popular to merit more than one-off prototypes and few are...
jjtctaylor
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May 28, 2004
2:55 am

G'day, The Spronk one was for wimps. It was a hole in the bridgedeck. You stayed dry and had little or no chance of getting your tonsils backwashed, a ...
Rob Denney
proaharry
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May 26, 2004
7:09 am

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