A closer look at the slide in the recent direct that breaks down all ship parts that can be used to construct a spaceship.
I think most of them are self-explanatory, but I wonder what the distinction between grav drives, engines, and reactors is, and what exactly fuel tanks affect.
I also wonder how cargo capacity manifests, and if there's cargo that we can't carry on our person but only on our ships. It would be a bit silly if we could carry tons of ore in our spacesuits to our ship, so having some way to transfer directly from outpost resource collectors to our ships would make sense to me.
Having prior experience with space sims, I'm guessing your grav drives are responsible for how far you can "jump" across the galaxy, like a hyperspace jump (perhaps it could also affect cooldown period between jumps).
Your Engines affects your acceleration, maneuverability, and max speed in normal space.
And reactor is the total power available to your ship. In most space simulators you have to carefully balance power to either weapons, shields, engines, and possibly more systems. You will never be able to juice up all systems 100% simultaneously so you need to manage the power flow in real-time. Just got ambushed and you need to make a quick getaway? Full power to engines and grav drive (maybe a bit in shields) - but NO power to weapons cause you need to spend your limited energy to escape. On the other hand, you're on a mission to take down an enemy ship and are on the offensive? Full power to weapons and some into engines for speed/maneuverability, and hopefully you can blast the enemy to smithereens before he escapes.
I'm excited to play with the power system! No Man's Sky is the only game I've played with space flight, and it doesn't have any on-the-fly systems like that.