Arne wrote:

Interesting, Paul,
practical experience beats my armchair theories.

Anonymous wrote:

Interesting, Paul,
practical experience beats my armchair theories. On my last three boats, I am pushing the d-min limits with the space-demanding Johanna-sheeting. I cannot haul the furled bundle to the cl. I choose to accept that as long as I can sheet the sail in for fully close-hauled sailing, even with only 2-3 panels set. I am reluctant to trade away the anti-twist properties of the Johanna-sheeting.

Does your boat have port-stbd. sheeting on any of the sails? I hope you can draw up your sheeting plan and let us see it.

Arne

Anonymous wrote

Arne,

If I understand correctly then you need to have, at minimum, three panels raised to set the sail. Is that correct?

Actually, while sailing in a new rig, I adjust the length of the sheetlet bridles going to the boom and the two lowest battens, so that with at least two reefs in the sail, the lowest point (Point B in the diagram) hits the deck block, when fully close-hauled. If I haul in more on the sheet, the boom will not move, only the upper section of the sail.
If I reef all the way down to two panels, the sheeting angle will be a little wider, but that is ok, as the boat cannot point that close to the wind with only two panels set. Ingeborg still tacks and sail to windward with two panels, though, but I guess she is special...

Arne

PS: I have a habit of rigging my boats with a SA/disp. over 20, which means that I have to reef away one to four panels quite often. Easy reefing and good performance of the reefed sail is therefore important to me.

PS 1. Dec: A little grammer question from a polar monkey: "cannot point that close to the wind"  - that should be "... closely to the wind", or?

Robert,
your sheet layout seems to be good for your sail. The layout of the Johanna-style sails is very different from that of your split JR. Not only is the sheet load likely to be generally lighter in your rig than in my (lower balance) sails. In addition, the unsheeted top section  area is much smaller than on the fan-topped Johanna sails. I found out by trial and error that the antitwist properties of the Pilmer sheeting was only just adequate, and unwanted twist developed if I reefed. Then I modified the upper part of the Pilmer sheeting to the Johanna version (I actually did that at the end of my Malena ownership). The good thing is that I can reef the sail and retain a good, moderate twist with this sheeting. I think that is a reason why Ingeborg is now faster to windward with one or two reefs (than 7-up), if there is enough wind to warrant the reefs.

To me, first priority is on performance and easy handling under sail. As the photo shows; in harbour, a rope hoop tied to the port side deck has been made to hold down the furled sheet bundle. The fact that the sheet does not fill the D-min requirements has thus been compensated for. I’ll rather do it that way than sailing with too much twist  -  or worse, having to struggle with an euphroe...

Conclusion: Different sail planforms need different sheet layouts  - the one size fits all doesn’t apply here...

Cheers,
Arne

Anonymous wrote:

ROn my last three boats, I am pushing the d-min limits with the space-demanding Johanna-sheeting. I cannot haul the furled bundle to the cl. I choose to accept that as long as I can sheet the sail in for fully close-hauled sailing, even with only 2-3 panels set. I am reluctant to trade away the anti-twist properties of the Johanna-sheeting.

Arne