The budget papers regarding
SEA 1448 Phases 2A and 2B which deal with
Anzac Anti-Ship Missile Defence (ASMD), have raised a few concerns about any future upgrades that may be planned for this class.
Phase 2A seems to have identified topweight as an issue with the
Anzacs:
http://www.defence.gov.au/budget/07-08/pbs/2007-2008_Defence_PBS_09_s2.pdf
(Section 2, pages 278-281)
The Australian ships don’t carry the Phalanx CIWS that is mounted above the hangar on their Kiwi cousins, but they already have Nulka installed (a 2x 4 mount above the hangar and a quad mount P&S), and the change from Sea Sparrow to ESSM has added another 24 missiles in the VLS position which is also placed quite high up in these ships. The RAN ships also carry a heavier helicopter than their NZ counterparts. Great care is obviously being taken to ensure that stability will be preserved with the fitting of the new radar, including a redesign of both fore and after masts. Consequently it now seems to me that the fitting of a second bank of 8 VLS cells and/or a VSRAD system will be extremely problematic at best.
I would be interested to hear from our professional members re this issue.
Cheers