Peter Skelton wrote:
[snip]


They are longer ranged in anti-ship mode than in anti-air - it
has to be that way, the height it has in AA mode at maximum range
is available as energy to get out farther at the surface. SM2 ER
should be good to 90 sea miles.

That doesn't mean targeting and sensors work that way, the world
being curved and all.

Over the horizon targeting could be performed by an aircraft,
satellite or small boat.

Andrew Swallow