US Marines to get high-speed, radar-evading electric seagliders for rescue ops

This is like the old Soviet Ekranoplans [1].

[1] https://en.wikipedia.org/wiki/Lun-class_ekranoplan

It will have many of the same issues too, common to all ground-effect sea planes, namely that wave height, rogue waves, weather conditions, and the ability of pilots to remain highly focused will be major limiting factors.

I'm guessing modern sensors and fly-by-wire systems might at least handle the last part.

Why must pilots be highly focused? To avoid hitting the ground? I hope there is some autopilot to help with that ...

Conditions at sea can and do change rapidly, when you're flying something like this, that's crucial.

I just wonder about the corrosion problems of an aircraft that spends all its time next to the water.

But maybe this kind of thing is made out of materials more like a surfboard than an sr-71.