Comment on Tragic Titan submersible’s $62 SanDisk memory card found undamaged at wreckage site
BradleyUffner@lemmy.world 1 day agoIt’s not going to have location data. GPS doesn’t work under even very shallow water.
Comment on Tragic Titan submersible’s $62 SanDisk memory card found undamaged at wreckage site
BradleyUffner@lemmy.world 1 day agoIt’s not going to have location data. GPS doesn’t work under even very shallow water.
Geodad@lemmy.world 1 day ago
Nobody said GPS (except for you). Location data does not mean GPS.
BradleyUffner@lemmy.world 1 day ago
Ok, so tell me how you are going to get a location fix underwater, in the dark, with no landmarks to orient yourself, in constantly shifting currents?
Hadriscus@jlai.lu 1 day ago
Like on every ship ! by looking at the stars
elevenbones@sh.itjust.works 1 day ago
U mean starfish?
Geodad@lemmy.world 1 day ago
You use your starting point as a baseline and keep track of the movement of the craft.
BeardedBlaze@lemmy.world 1 day ago
Just because you set the sub to a set knot speed, doesn’t mean it’ll actually cover that distance in that time. There are ton of currents going in all different directions.
bold_atlas@lemmy.world 1 day ago
Dead reckoning. Usually hit or miss on the surface. Probably worse under the water.
Crashumbc@lemmy.world 22 hours ago
Yes and they use SINS, now this probably didn’t have an expensive SINS setup but they did have communication with the surface that was tracking them on sonar. They did have location data.