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Deck sweeper Jib

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Sapspec8650 View Drop Down
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    Posted: 08 Dec 19 at 10:12pm
Help!
My sailmaker has cut me a (class legal) Jib that lays on the foredeck by about 10cm & seems pleased that I now own a 'deck sweeper' 
Right now I am unsure that it will set properly after tacking -- not back on the water 'till spring - so I'm stuck with testing in the drive.
So my question - are there any positive advantages sailing with this rig, & is there anything I need to do differently? I habitually sail single-handed ..so I would find it difficult to reach the foredeck while close-hauled.
Thanks for your thoughts.
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davidyacht View Drop Down
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Post Options Post Options   Quote davidyacht Quote  Post ReplyReply Direct Link To This Post Posted: 08 Dec 19 at 10:32pm
The deck should act as an endplate and therefore increase the effective aspect ratio, increasing efficiency.  In reality the benefits are pretty far along the diminishing returns curve.
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ian.r.mcdonald View Drop Down
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Post Options Post Options   Quote ian.r.mcdonald Quote  Post ReplyReply Direct Link To This Post Posted: 09 Dec 19 at 8:53am
Would I be wrong in suggesting that 10cm is too much and fixing the tack higher would be good?
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Sam.Spoons View Drop Down
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Post Options Post Options   Quote Sam.Spoons Quote  Post ReplyReply Direct Link To This Post Posted: 09 Dec 19 at 8:56am
That is what I would suggest but what class of boat is this?
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JimC View Drop Down
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Post Options Post Options   Quote JimC Quote  Post ReplyReply Direct Link To This Post Posted: 09 Dec 19 at 9:16am
Back in the 50s jibs were usually on short strops. After the first people moved jibs down in the early 60s virtually everyone followed within a very few years. The benefits were obviously seen as very clear cut.

The biggest pressure differential is at the luff, it would be unwise to create a gap there.

I've never known of tacking to be an issue.

Edited by JimC - 09 Dec 19 at 9:17am
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Noah View Drop Down
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Post Options Post Options   Quote Noah Quote  Post ReplyReply Direct Link To This Post Posted: 09 Dec 19 at 12:00pm
Originally posted by JimC

 

I've never known of tacking to be an issue.

Unless there's a horned mooring cleat in the middle of the foredeck! 
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Sapspec8650 View Drop Down
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Post Options Post Options   Quote Sapspec8650 Quote  Post ReplyReply Direct Link To This Post Posted: 09 Dec 19 at 1:03pm
Hi Ian Mc:
my thoughts exactly  ---- BUT---- As I raise the tack I will change the sheeting angle, & in my case the fairlead is fixed.
So - a little more. The boat is a new(ish) Heron - for this I make no excuses - she is a great little boat to wind down on! (& and I am in my late 70's)
However I still race her seriously & would to remain competitive.
From the tone of your replies I think there seems to be generally approval of the maximum median?
Thanks for your interest.
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423zero View Drop Down
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Post Options Post Options   Quote 423zero Quote  Post ReplyReply Direct Link To This Post Posted: 09 Dec 19 at 1:15pm
Nothing wrong with Heron, very nice boat.
Robert
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JimC View Drop Down
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Post Options Post Options   Quote JimC Quote  Post ReplyReply Direct Link To This Post Posted: 09 Dec 19 at 2:04pm
I don't know what you mean by maximum median, but I'd leave it as it is.
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Sam.Spoons View Drop Down
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Post Options Post Options   Quote Sam.Spoons Quote  Post ReplyReply Direct Link To This Post Posted: 09 Dec 19 at 2:33pm
I learned to race in a Heron and had another when my kids were young, lovely boat.
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