Er, Chris73, what do mean by not a robust or reliable,the ship ? I would have thought it essential piece of kit, given we live on fault lines too. Our diving and MCM team should of had this upgrade yrs ago.
I mean that it is a capability that really needs more than one ship to ensure that it can be performed, especially for such an emergency response mission. One ship is quite likely to be unavailable when you need it - either in refit, or deployed overseas. Therefore, as a capability it will be neither robust nor reliable. It should be 2-3 ships filling this role.
To some extent an OPV can cover for it (as seen in the Cyclone Winston response), but not well.
The same charge can be leveled at the Canterbury (what backs it up?). Remember the 2009 Tsunami in Samoa when Canterbury was in dry dock?
This new ship is, IMHO, seriously overloaded in what it is being asked to do: i.e.
1. Replace Manawanui & Resolution (& Kahu) - so already it's pulling double duty compared to it's predecessors
2. Be on permanent standby as a critical part of a JATF or a disaster relief force
3. Deploy overseas more frequently than Manawanui or Resolution used to.