Actually it is. But it's a video game - we can have all the space magic. Just don't sell this stuff as real facts.
Good point. We have a speed limit in space. It doesn't have to be totally realistic.
Except the specific impulse from the engines would seem to indicate that they are fusion drives, albeit small ones. The heat from the exhaust would instantly vaporise all the water it came into contact with. At the very least, this would create a bubble of water vapour around the ship causing a... spectacular loss of buoyancy. You'd basically boil your way down to the bottom of whichever ocean you happened to be in.Many of the ships have airfoils already - the Dropship, for example, or the Fer de Lance and the Adder. I'd expect them to handle much better in atmospheric flight than a T7, which is basically brick-shaped.
I think we could say that these problems would be remedied as part of the "atmospheric flight package", or whatever they end up calling it, which would likely be an upgrade to the planetary approach suite all ships now have. E