Flying spinnaker downwind, is there a magic distance the foot/luff of the spin should be from the luff of the jib to avoid any drag or wind flow issues?
I know monhulls (even the big ULD sleds) drop their jib when flying the asymmetrics, but skiffs don't. Just interested in the thinking / theory behind when it's an advantage and when it's not.
Monodulls (my J22 included) run deeper angles and the jib gets in the way of the flow in the slot at those deeper angles. It also impedes the spin sheets (or the spin sheets distort the jib badly) at correct sailing angles - so we drop it to get it out of the way. On the multihulls, we leave the jibs up half out of convenience and half out of the fact that no rockstar has dropped or furled their jib and won a race yet.
