The U.S. Navy recently completed its first operational flight tests of the Block V Tomahawk missile, the weapon’s latest variant, from the guided-missile destroyer USS Chafee off the coast of California.

The objective of the testing was to support initial fleet release of the Block V Tomahawk’s Navigation/Communications (NAV/COMMs) upgrade, as well as upgrades to the Theater Mission Planning Center system and the Tactical Tomahawk Weapons Control System (TTWCS).

“This is the culmination of years of planning and effort,” said the Tomahawk Weapons System Program Manager Capt. John Red.

“We’re working every day to modernize the Tomahawk missile, and to deliver the best warfighting capability to the fleet.”

During the week of Nov. 30, the USS Chafee successfully launched two Block V missiles and one Block IV missile from Point Mugu Sea Test Range and impacted targets as planned. The successful completion of the operational tests paves the way for the delivery of Block V missiles to the fleet in 2021.

Block V missiles will feature a NAV/COMMs upgrade that will enhance navigation performance and provide robust and reliable communications. Future Block V capabilities will add to the NAV/COMMs upgrade and include the Maritime Strike Tomahawk variant, which adds a seeker kit (designated as Block Va), and an update to the conventional warhead known as the Joint Multiple Effects Warhead System (designated as Block Vb).

George Allison
George has a degree in Cyber Security from Glasgow Caledonian University and has a keen interest in naval and cyber security matters and has appeared on national radio and television to discuss current events. George is on Twitter at @geoallison

22 COMMENTS

  1. Anyone explain what makes these so expensive I mean they’ve produced thousands of these you’d of thought economies of scale would of kicked in, or that really is just a myth

    • If we were to get them (which i think we should), we could pay for them to be adapted ourselves, much like we did for our Block IV missiles I believe. It would give us a much needed improvement in capability, lesson the need for a dedicated SSN launched AShM.

      • We are probably better off staying focused on making FC/ASW a successful program, rather than investing on more TLAM updates. FC/ASW will deliver weapons capable of submarine, ship and aircraft launch for commonality across the services. As a modern platform, it will either be a sub-sonic stealth missile vs TLAM’s lack of stealth, or it will be a high supersonic or possibly hypersonic solution. Its conceivable that the program might even develop both, given the different missile attributes, with commonality on warhead, sensors and targeting software.

        Its understandable that the US keeps spending on upgrades as they probably have 1,000’s of Tomahawks in stores. They can load up ships (with lots of VLS tubes) and subs in order to try to saturate targets. Which is maybe the plan for the ASuW variant, because its questionable how successful a non-stealthy sub-sonic missile will be against a modern peer enemy ship unless used in large numbers. Even then I suspect Tomahawk is a lot less maneuverable versus say NSM, although these are different weight classes of missiles, so not perhaps an entirely fair comparison.

        • Wonder what the probabilistic modelling would suggest. Single block V against contemporary AAW vessel….what.. Less than 5% chance of success.

          What volume would have to be launched concurrently to get the probability over 100% for a single hit out if the attack… 5? 10?

          • I suspect that would be a complicated calculation. For example a sea skimming attack against a modern warship with high mounted AESA X or S-band radar (fixed or rotating) and active seeker missiles will make it much harder to saturate, e.g. UK’s Viper system in T45. Conversely, against a ship with a PESA, or even AESA, radar system but with non-active seeker missiles (requiring fire control radars staying locked onto each Tomahawk until destroyed) would be easier to saturate. But with a slow sub-sonic non-stealthy missile like Tomahawk, picked up early close to the radar horizon it still seems like a lot of missiles might be required to saturate, before we even consider other countermeasures.

            Perhaps the US goal would be to initially tie up fire control radars with Tomahawks and then time incoming SM-6 missiles to cause the defence system to break radar lock on the Tomahawks or take a hit from a SM-6 that might at least destroy critical defence sensors if it hits, if not worse.

          • And ESSM Blk 2 active seeker upgrade too. Those missile upgrades along with SPY-6 and SPQ-9B on AB II and III should make them much more capable.

        • Good points, I believe that FC/ASW is possibly the way ahead, but , it’s still on the drawing board, probably won’t be available until 2030ish, if it does survive Brexit!! The likes of TLAM, LRASM and NSM are already here, so it’s a bit of looking into a dark hole and rolling the dice as to what we need/might need. Interesting to see what transpires.

          • I’d be more concerned about FC/ASW surviving the apparently contradictory requirements from France and the UK than Brexit, i.e. between high speed and sub-sonic stealth. There does seem to be value in both but that would be bound to drive up costs, probably significantly.

            Certainly bird in the hand on current options. Part of the calculus has to be estimations of realistic threat scenarios over the next 10-20 years and longevity of current missile solutions. Tomahawk seems to be an interim solution. LRASM, aka AGM-158C, is also supposed to be a short term urgent requirement fix, with the long term solution supposed to come from the Offensive Anti-Surface Warfare (OASuW)/Increment 2 program. NSM/JSM is looking best to me for at least an interim solution, but probably a threat to FC/ASW, despite the different weight and probably range classes. It would mean the UK ending up supporting two high end ASM/Land Attack missile solutions when we probably only want to support one. But if an F-35B internal fit variant ever sees light of day, then it would have a lot to recommend it, even just as a qualified wing carry solution, in addition to surface launch.

            If not for the interim missile apparent requirement to support land attack, then for the UK, Harpoon with upgrades is probably the easiest to integrate (and perhaps lowest cost) ASM interim option for surface and P8 launch into the 2030’s. Similarly land attack sticks with TLAM from submarines into the 2030’s.

          • I’d largely concur- I’d be happy to wait for F/CASW. NSM/JSM is only attractive to me if they get integrated with P-8A and F-35 (I don’t necessarily feel it needs to be internal carriage), with enough commonality between surface and air-launched versions to make some cost savings.
            Another plus is, I believe, that the newer Block II Harpoon has a land attack capability, so it will give our escorts some level of bite without having to rely on our SSNs.
            I also like the RBS15 for the same reason, but it doesn’t seem to have the same level of integrations across our inventory of platforms, so Harpoon wins out.

          • Hi Joe. I haven’t seen mention of JSM for P-8 but IIRC Australia and Norway were paying for integration onto F-35 and Japan is another committed customer for JSM on F-35. I’d agree an internal F-35B variant would be icing on the cake as it were. Its perfectly viable for a clean above the radar horizon F-35 to do the targeting for a wing loaded JSM F-35, with the latter below the radar horizon.

            I must admit I hadn’t picked up on Boeing positioning Harpoon for land attack. The current Block II is rather short range though for land attack with only a claimed >65 nmi, even for near-shoreline targets, so it would need the Boeing proposed Blk II+ ER extended range upgrade, but its unclear to me whether that is still a live Boeing program.

            What will be interesting to see is if the UK goes with just one Anti-Ship/Land Attack missile (excluding Sea Venom) or a family of solutions. Simplifying logistics and training across both the RAF and RN suggests just one, but it will have to be high end. Conversely, future ASM doctrine might use SPEAR Cap 3 launched from surface and/or air platforms to swarm ships (using both warhead and EW versions), in combination with the high end FC/ASW solution(s). Clearly the RAF and FAA will already have SPEAR 3 in the inventory anyway for land roles, and the ASM role would be essentially a similar SEAD/DEAD mission for the missile. The issue, does NSM/JSM still have a role in the model worth having it in inventory as well, as it would sit between SPEAR 3 and FC/ASW.

            Somewhat ironically, given my previous points, if SPEAR 3 is a capable SEAD/DEAD solution against ships then that would open up the viability of Tomahawk in an ASM role, against largely defenceless ships at that point, but I can’t see the UK committing to such an old platform for surface launch.

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