Tuc
The larger RN radome and scanner, which would have halved the blind arc
With respect, this doesn't make sense. The only way to halve the blind arc would be to halve, in size, the object blocking the beam (i.e. the Main Rotor GearBox). On the other hand, doubling the size of the antenna (whilst keeping the RF the same) would halve the beam WIDTH, thus improving the azimuth resolution.
I'm off out for a bit to get a life......