Our trailerable boat (Sandpiper 565
) doesn't have a backstay, just the set-back side-stays with swept-back spreaders.
On most points of sail, it's not a problem. But in the region from broad-run to dead downwind in a good blow, it sometimes seems to me like the rig 'pumps' a bit. I've managed to reduce the severity of the pumping by loosening the boom vang
, which I think allows the sail to flex a bit more in gusts.
As we get more comfortable with stronger winds, I'm thinking of adding a backstay, just to resist some of the forward motion, in hopes of preventing a downwind dismasting
. The previous owner had actually done that, but I opted to restore the stock standing rigging