If you want a spinaker halyard and two trapeze lines to work with a sleeved main,
I'm personally not thinking about any trapeze lines on this design. If we need more righting moment then I rather choose to make the boat wider. However, I don't think we need to go beyond 2.0 mtr width anyway.
It can be done if the main is like the Laser, without halyard.
While it is possible to make the sleeved sail "hoistable" by giving it a zippered sleeve, I don't favor that solution. I don't think it is needed as the sail can weathervane 360 around the mast as it is anyway. So there is no safety issue involved. Additionally, zippers are expensive and wear down quicker over time then the sail itself.
If ever the rig needs to come off during a waterborn rescue then one can simply pull the sail off from the top. Hell, demasting the unstayed rig in the same manner will be viable as well. Unhook the support tubes and have the sail fall forward in the water between the bows. Unhook the mast foot and then slide the bottom section out of the sleeve and work your way up the mast that way while pulling it more and more on the boat and rolling the sail around the boom. The top mast section will then be slid out from the top. Rigging the boat up on the water will be the same procedure in reverse. I don't think any of the stayed rigs can mimic something like this. And ohh, the support tubes slide up and down when the mast moves forward or backwards and thus guide the mast in the sideways direction during any of this. It will also be possible to have the mast fall back onto the boat after unhooking the boom. Again the support tubes will double act as a back rest to the mast (while rotating around their supports on the hull. Hell the sleeved rig can even be folded up like that. Just slide the upper section out of the bottom section and fold it along side the lower section. This package will then only protrude some 0.75 mtr past the sterns and about 0.5 mtr in front of the mainbeam while the lower section stays attached to the mainbeam.
We can even use the spi halyard as a support line during lowering or raising of the rig. The option is many and I'm really beginning to appreciated this unstayed rig solution.
We don't use halyards on the unstayed rig on landyachts and I don't see any reason to do so on the F12 when using the same setup.
Wouter
