Well RAAF use 84Js which is an upgraded block 1, E I believe in RAAF service, listed range @124km, but have heard up to 160+km
RAN use the block 2, which is a purpose built J, similar range. Of course we dont really know which models we have, except for the collins sub launched versions.
We could have the 220km range versiins, who knows. The J is also able to be used against land targets which is useful.
Having said that, I would not want to be in P8 @ 120 km from an enemy frigate.
The J model employed in this serial is a Block II.
That 124k range was the requirement for the missile.
Weapon systems are certified against requirements, the Harpoon initially in this case was certified to a range of 75m which is where the “120k” range comes from this depending on conversions goes from anywhere to 124k to 130k without the publishers bothering to correct these figures. But saying what we “need” it to do, is far different from saying what it “can” do. Army “needs” it’s 12.7mm gun to shoot to 2000m. But it “can” also shoot to 6800m given a range of caveats (indirect fire mode with high elevation, larger beaten zone, etc).
The AGM-84 according to the RAN has a range of 124k. It also did when the RAN first bought them. Some 10-15 model updates ago…
But they operate the AGM-84 J-1. An evolution of the Block 1C missile which added among other things a larger fuel tank, JP-10 fuel instead of JP-6 jet fuel and the ability to add way points to conceal the launch point of surface launched missiles and a range of 220k…
Ah, but Surface launched models feature a booster, I might hear you say? Indeed They do. They also launch from roughly sea level and below 30 knots. I am not sure even the bravest, most wily RNZAF crew are launching a pair of Harpoons from a P-8A at sea level and below 30 knots…
Indeed the footage of the launch puts them at substantial altitude and while no information on aircraft speed was released, cruise speed for the P-8A is around 490 knots, so these weapons got plenty of “air” time and quite the speed boost before launch was even close.
I’ve no doubt the RNZAF weren’t being disingenuous when they wrote these pair of missiles were launched around 100k or so from their target, but assuming this was near maximum range is adding apples and oranges.
At altitude and speed, or when boosted, modern models go FAR longer than that.