Im sorry if the previous thread was slightly elongated. And you probably can forgive me for misunderstanding WJ previous thread, as i think no one can understand what he is trying to get at.
Let me try and put what i believe is the right scenerio to this situation.
To be honest im not a strong advocate of the P3 Orion for the reason that this government hasnt kept the military survellience computers upgraded, and took out the MAD anti submarine mission to our P3s. Its running on the very basics of operational ability. Thats why we end up using them for search and rescue and in the place in Persian Gulf to track ships and to take part in Exercises like the one in Singapore last year where unfortunatly it wasnt able to keep up with the coalition detail. Sorry to say.
If we had them running like the Australian counterparts then i would have more confidence in their ability. The Labour government has ignored the real required and needed mission computer upgrades like they should have got.
The current upgrade only gave them flight deck upgrades and some mission computer overhaul, but that was about it.
The second thing about the P3 if they are all sitting at their base at Whenuepai and a call came through to intercept a fishing ship fast approaching NZ, and through intel it had been intercepted by our OPV but wouldnt stop. I can gaurentee you a pair of Hawks is going to make it stop with a salvo of rockets fired across its bow. Now thats something a P3 loaded with a Harpoon or similar isnt going to able to do.
Besides there is this one fundamental issue that plagues my mind. And i believe it is valid. A fast jet like the Hawk is going to be able to "deal" with the situation at sea far quicker than the P3. If you loadup and have a jet ready it going to reach the target far quicker than a P3 following in its footsteps. Its a folly to think that a P3 will be in the air 24/7 and is able to divert to the area that quick. Im sure you can see that. The Hawk will make it there alot faster. I do realise that the Hawk 200 will have a combat radius of 600km but its certainly enough to keep our security at a level that is acceptable.
I went ahead and did a bit of research to check on a few things. From what I've gathered, NZ doesn't seem to have an integrated network of land-based maritime radar arrays like Australia does (SECAR, JORN). If NZ does, it's keeping awfully quiet about them.
With regards to P-3 operations, they are designed to operate for long periods of time on patrol, with a total of up to 15 hours if two engines are shut down to conserve fuel. As such, they aren't left in a hangar or on a runway while other assets detect vessels approaching NZ. That is the primary task of the P-3. One might not always be nearby, but it is likely that one will be aloft.
On to capabilities. The Hawk 200-series is equipped with the APG-66H radar, a version of the APG-66 with a max (published) range of 150km. The -H version, having a smaller antennae is stated to have reduced capabilities. Also, the radar is nose cone mounted meaning that unless the nose/radar cone is pointed in the direction of the target, it won't be detected by the Hawk. As for armament, the Hawk is apparently fitted to carry Sea Eagle AShM with a published range of 110km, so that at least is an option.
With the NZ P-3K Orion, the aircraft were upgraded from P-3B standard to the -K standard, which was largely a P-3C Update II standard, with some local innovations. As such, I can't confirm (can anyone else?) but I believe that the P-3K uses a version of the Raytheon APS-137, as do the P-3C Orions. Standard as part of the P-3C Update II is IR detection and provision for carrying the Harpoon AShM.
I went searching for range info on the APS-137 and wasn't able to locate any. What I did find was range info for the APS-116 sea-search radar. This radar equipped the S-3A Viking, and was replaced in the S-3B Viking starting in 1987 with the more capable APS-137(V)1, variants of which are also used in the P-3C Orion. Mode three of the APS-116, long-range search, had a published range of 278km. Presumably, the range of the APS-137 would be equal to, if not greater than that of the earlier APS-116. I also believe believe the radar configuration found on the P-3K doesn't restrict the radar to a narrow cone as on the Hawk, giving the Orion not only a longer reach, but covering a wider area as well.
As stated earlier, depending on what asset detects the target, and where it gets detected relative to Hawk or Orion aircraft, that I think would determine which aircraft gets tasked with the strike mission. I don't see either aircraft getting dispatched to fire warning shots on vessels though. If a given vessel doesn't halt after warning shots from a 0.50 cal. or 25mm on an IPV or OPV, then I imagine there would be a boarding attempt, backed up by the same weapon(s). If the boarding was repelled, or became too dangerous for the boarding party, then I imagine the strike would be called in.
Keep in mind also, that the OPVs at least will have the ability to operate helicopters, and some of them may well be at least as well equipped to carry out maritime strikes (with Maverick AGM for instance) as a Hawk.
-Cheers