They are pretty dangerous. A good number of them crashed. Some in choppy seas. It is hard to train pilots for it. In one case, the sea was getting choppy and pilots did what well pilots do. They pulled up to increase the altitude. That disrupted the ground effect and the craft crashed.
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They are pretty dangerous. A good number of them crashed. Some in choppy seas. It is hard to train pilots for it. In one case, the sea was getting choppy and pilots did what well pilots do. They pulled up to increase the altitude. That disrupted the ground effect and the craft crashed.
Those problems can essentially be fixed with a modern autopilot. Nobody claimed that progress doesn't involve work on developing the planes.