alt Hacker News> I imagine there are similar issues with ship design.
The U.S. Navy built some stealthy ships.[1][2] But they were very expensive. It seems to have been a dead end not worth the trouble. There are so many sensors, shipborne, airborne, spaceborne, and onshore, that trying to hide a slow moving warship isn't likely to work against a peer opponent.
Yes, imagine if air search radar was good enough to see the "wake" of the aircraft so that even if the plane was invisible you could just locate and track its effect on the atmosphere...