sorry i needed to say this,
the reason why they look at that is that their triangular shape makes it hard for radars to spot them as radars always looks for flat objects..
so in wars enemy radars will struggle to spot these type of ships due to their shape
the old battle ships had too many bunks and buildings stacked on top so the radar could immediatly spot that.. But these triangular ones arent
Yes I knew this. But it still looks silly!
And about the "radar invisibility", as you can see in my beautiful diagram, depending on were the radar is it may not work.
Radar 1 the signal is deflected, thus making the ship inviable .But with
Radar 2 the signal is at just the right angle, so the signal is deflected back to the transmitter so the ship will show up.
However it is true that this design has a smaller radar signature than older "boxer" battleships. With the old design the radar could be at any angle and the signal would almost certainly reflect off of something and return to the transmitter, but with the new design the radar has to be at the "right" angle to reflect.
NOTE: For radar to work the signal must return to the transmitter.
EDIT: forgot to attach the image
Other EDIT: added 2nd paragraph