[wthalheimer]

To be clear, seagliders are limited to ground effect in that it is physically impossible for the captain to remove the vehicle from ground effect. The flight control system locks the vehicle to within a wingspan of the surface.

[schoen]

What would happen aerodynamically if your vehicles got out of ground effect? Would they stall pretty much immediately?

[roflyear]

Either recreational boating has to be eliminated or your thing will never work.