OCV's would be lightly gunned (typhoon or maybe an old 76mm or that LCS gun) with maybe some mini's.
OCV's would be continuously built locally, say 1 every year.
Then with 20 2000t hulls, they can go out and do blue water patrols any and everywhere in the EEZ or region. They could also be deployed to anywhere in the globe as a policing ship. Life time would be 20 years max at which point they would be crushed. Make em monohulled aluminiums with a built in design life.[/
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There is no doubt that at least 20 hulls (replacing 26) would be needed
and that this represents a capability lift for the RAN.
Why do you advocate alu for such a large ship though? The 6 x Rivers were only a little over 2,000 tons and they remained in service for 30 yrs + thanks to steel hulls.
Its not as if speed is the premium requirement for the OCV's.
The investment in them will be of such magnitude that the nation needs more than 20 yrs particularly if the modular concept becomes a reality where the module can be progressively upgraded throughout their lives provided that the transporter is robust enough.
Alu is for tinnies and high speed ferries/LCS' and anodes, all of which disappear at alarmingly fast rates.
And finally, I agree with Icelord, lets not repeat the contractor owned shambles that is the Armidale/Austal/DMS concept and let's return ownership and responsibility to the RAN despite what the beancounters propose.
Has this concept been financially successful? I don't know but it has certainly degraded the navy's ability to maintain and repair their own warships