ThinksMarkedly wrote:Note: If sails are only needed in grav waves??? Then can a spider ship raise sails in regular hyper anyway, to also serve as a beacon? IF a spider ship has sails which I do not think it has???
See others' answers for why it must have. I don't see a reason why it couldn't raise the sails and thus be visible in grav sensors.
But they are called sails for a reason, and raising them might make the drift problem worse. Similar to a sea ship: if you drop your sails, you're adrift, bobbing up and down with the waves and only moving along the sea currents; if you raise your sails, you'll be carried by the winds in addition to the sea currents.
As far as we know grav sails can only catch 'wind' in two very specific spots -- within a grav wave and in the arrival/departure grav lanes near a wormhole terminus. So, unless there's something RFC hasn't been telling us, putting up sail in a rift in hyperspace shouldn't cause any acceleration (even if the next hyper wall up is moving relative to you)
(Now if you'd set your rendezvous within a grav wave then sure sails provide propulsion; but you can control their grab factor and so should be able to hold position (at least to the accuracy of your hyperlog's position indication)