“Precision-Guided Munitions: Background and Issues for Congress” –CRS

The Congressional Research Service issued an update of their 42 page “Precision-Guided Munitions: Background and Issues for Congress” on February 27, 2020. This contains a lot of information on weapons we have discussed here, for potential Coast Guard applications to improve our ability to stop threats ranging from small fast highly maneuverable small craft to medium or large sized ships. The weapons that might be of interest to the Coast Guard include Hellfire (also discussed here and here) and its successor the Joint Air to Ground Missile (JAGM), the Precision Strike Missile, the Naval Strike Missile (NSM), and the Long Range Anti-Ship Missile (LRASM). Missing from the list is the Advanced Precision Kill Weapons System (APKWS) which is really a guidance kit used to provide semi-active laser homing for the 70 mm Hydra rocket.

For some reason the Coast Guard seems to be guided weapon phobic. Is it the Coast Guard not asking? or the Navy not supporting? No way to tell, but it does look like guided weapons could answer an unfulfilled need to be able to forcibly stop any vessel, regardless of their size, speed or maneuverability. Also unlike conventional naval guns they provide greater precision, minimizing the potential for collateral damage. This could be a significant advantage in view of the fact that the Coast Guard may be called upon to engage terrorists near population centers.

Yes, individual guided weapon rounds are more expensive than conventional gun projectiles, but the total cost to provide a given level of capability and train and provide supporting personnel is usually less. (The 57mm Mk110, its ammunition, and people to support it are not cheap. Reportedly the gun cost $7.2M and the rounds $1200 each.)

The ubiquity and sheer number of modern precision-guided weapons is staggering.

In FY2021, the Department of Defense (DOD) requested approximately $4.1 billion for more than 41,337 weapons in 15 munitions programs. DOD projects requesting approximately $3.3 billion for 20,456 weapons in FY2022, $3.9 billion for 23,306 weapons in FY2023, $3.9 billion for 18,376 weapons in FY2024, and $3.6 billion for 16,325 weapons in FY2025.

Below I will provide a brief description of the weapon and using the figures from the report provide an approximate unit cost.

ATLANTIC OCEAN—A Longbow Hellfire Missile is fired from Littoral Combat Ship USS Detroit (LCS 7) on Feb. 28 2017 as part of a structural test firing of the Surface to Surface Missile Module (SSMM). The test marked the first vertical missile launched from an LCS and the first launch of a missile from the SSMM from an LCS. (Photo by U.S. Navy)

AGM-114 Hellfire Missile: 

Originally designed as a helicopter launched anti-tank weapon, Hellfire is relatively small at about 110 pounds. It has a surface launch range of about eight kilometers or about 4.3 miles. The warhead is about 20 pounds. It could be highly effective against small, fast, highly maneuverable targets. Even multiple hits would be unlikely to sink a medium to large ship, but at least it has the possibility of disabling one.

These weapons are procured in very large quantity.

All three military departments procure Hellfire missiles. From 1998 through 2018, DOD procured more than 71,500 missiles at a cost of $7.2 billion. Congress appropriated nearly $484 million for approximately 6,000 missiles in FY2019. For FY2020, DOD requested approximately $730 million for 9,000 Hellfire missiles, and it plans to purchase 13,100 missiles at a cost of $1.2 billion between FY2021 and FY2024 (Table 3). In its FY2020 recent budget request, DOD states that it is requesting to procure the maximum production of Hellfire missiles.

Unit cost on the basis of the FY2020 request would be less than $83,000.

AGM-169 Joint Air-to-Ground Missile (JAGM):

JAGM is expected to replace the closely related Hellfire Missile, but there is as yet no firm timeline. In form, it is very similar to Hellfire but has various improvements.

“JAGM has a maximum effective range of 8.6 nautical miles when launched from a helicopter…” the surface launched range should be similar. It uses an existing AGM-114R rocket motor so presumably the range of the latest versions of Hellfire may be similar.

Requested and Programmed procurement for the JAGM for the six years from 2020 through 2025 amount to 4,771 missiles at a cost of $1,624.96M for a unit cost of about $341,000

US Navy photo. A U.S. Navy Long Range Anti-Ship Missile (LRASM) in flight during a test event Dec. 8, 2017 off the Coast of California.

LRASM:

LRASM is a relatively large, very sophisticated anti-ship missile with a range of over 200 nautical miles. It weighs 4400 pounds in its surface launch configuration and has a 1000 pound warhead.

Requested and Programmed procurement for the LRASM for the six years from 2020 through 2025 amount to 356 missiles at a cost of $1,260,350,000 for a unit cost of about $3,540,309.

Precision Strike Missile: 

This is a ballistic missile rather than a sea-skimmer. It has a range “in excess of 400 kilometers.” It is intended to replace the ATACM artillery rocket which is being modified for use against naval targets. Since the missile is physically smaller than the ATACM, it is likely the warhead is smaller than the 500 pound warhead used on some versions of ATACM.

Requested and Programmed procurement for the Precision Strike Missile for the five years from 2021 through 2025 amount to 1,018 missiles at a cost of $1,073,410,000 for a unit cost of just over $1M.

Naval Strike Missile (NSM) :

The Naval Strike Missile (NSM) is smaller than the more familiar Harpoon missile. It is only 13 feet long and weighs only about 900 pounds. It has a 125 kg (276 lb) warhead. That is not large enough to sink most ships without multiple hits, but it is a smart missile and it may be possible to direct the missile precisely enough to do critical damage.

The CRS report indicates that the range for this missile is between 100 and 300 nautical miles depending on launch and cruise altitude. 100 for a low (launch altitude), low (cruise altitude), low (terminal approach) flight profile and 300 for a high, high, low profile. Assuming it can be programmed for a low, high, low, it might have a surface launched range considerably greater than 100 miles, which would increase it utility for the Coast Guard as this could allow more distant large cutters to target larger threat vessels, in cooperation with less well armed local units.

Requested and Programmed procurement for the NSM for the six years from 2020 through 2025 amount to 207 missiles at a cost of $366,010,000 for a unit cost of about $1.77M.

How much would it cost to equip the Coast Guard?

There are certainly a lot of unanswered questions here, but I think we could at least approximate the cost within an order of magnitude.

Such a program would extend over several years. This would reduce the annual impact.

While all the missiles mentioned above have potential Coast Guard applications, the Hellfire and Naval Strike Missiles also selected for installation on the Littoral Combat Ships and the new FFG are the most likely be supported by the Navy. After all, the new larger cutter share much in common with the LCS.

Hellfire: Just as a notional approximation, let us say we are going to put six Hellfire on each of the Webber Class FRCs, the Bertholf class NSCs, and the Argus class OPCs. That is 100 installations and 600 missiles. The missiles would cost about $50M. I would assume the launchers and control systems might double the cost to $100M. But this would be a multi-year program. The OPCs will not be finished until well into the 2030s so it would be unlikely the program would cost more than $20M/year.

Naval Strike Missile: Assuming an installation similar to that we are seeing on the LCSs, this would include two, four cell launchers. We probably would not necessarily routinely fill all eight cells, but if we did so equip eleven NSC and 25 OPCs that would be a total of 288 missile. The missiles would cost approximately $510M. Installation of launchers and control equipment might bump the total cost to about $1B, but again this would be spread over several years, continuing into the late 2030s as the OPCs are completed, and the Navy would be footing most of the bill. Installation on two ships a year would probably cost on the order of $50-60M/year.

17 thoughts on ““Precision-Guided Munitions: Background and Issues for Congress” –CRS

  1. The Mk. 46 torpedo in surface attack mode might be the best option. Then again, the Coast Guard might be worried about the Navy using them more if they get increased capability.

    • a light weight torpedo has always been my favored option, but I will take whatever we can get.

      Given all the work and progress on electric cars, I think we could cheaply produce an anti-surface light weight torpedo with essentially the same dimensions and weight as our ASW torpedoes. capable of disabling even the largest ships.

      Alternately maybe we could convince the Navy that our cutters are a good place to store ASW torpedoes until they need them, we probably would not use them anyway.

      Proposal here. https://chuckhillscgblog.net/2017/05/14/putting-torpedoes-on-the-webber-class-wpc/

      • I agree and disagree with the arguments here.

        Absolutely, positively, yes, the USCG needs to up-arm and this blog has been stressing that for years.

        I disagree that the USCG would get any of these missiles, and that is the main problem. Hellfire is short-legged and weak–should be replaced with SPIKE NLOS which has a range of 16 miles compared to six to eight miles for the Hellfire Longbow.

        And I doubt that the USCG would ever see any of these large anti-ship missiles installed on Cutters.

        What the USCG Cutters should get is the U.S. Army’s Multi-Mission Launcher (MML), 15 VLS cells in a neat little package to place behind the 57mm Bofors. With Tamir (IDF’s “Iron Dome”), that can fly out to 46 miles (40nm), the NSC and OPCs would have an effective punch. Tamir, Hellfire, and AIM-9X could probably be used against surface targets and with Tamir’s 44lb warhead, more than doubles the punch of the Longbow Hellfire. By having two MMLs behind the 57mm Bofors, that is 30 missiles total for the OPC and NSC. MML provides anti-air and anti-sea, a good combo than just these small and large anti-ship missiles in their own unique launchers. Buy MMLs and the associated MML missiles for the Cutters!

        The MML works…and then the U.S. Army said that it doesn’t quite….whatever. :-\

  2. @ Trisaw.

    In 14 January 2020, the US Army decided to purchase the “Spike NLOS” for the AH-64E “Longbow Apache” only. The US Navy tested the “Spike NLOS” to augment the Mk.6 Patrol Boat from 2017 to 2019, but lost interest in late 2019. The USCG “Might” get the “Hellfire Longbow”, but currently that’s a relatively big “Maybe”…

    • In a switch-a-roo, the U.S. Army decided to cancel funding to procure the 2.75″ APKWS rocket (and later probably restored some funding) whereas the U.S. Navy brought lots of APKWS rockets (and probably the U.S. Marines too). Odd considering how valuable a laser-guided rocket would be to the U.S. Army rotorcraft and light tactical vehicles.

      • The Mk.50 was an 8-cell Direct/Indirect 5-inch unguided shore bombardment rocket use on PT-Boats after 1944. It had an effective range of ~10,000-yards, using a Cordite propellant and a C4 explosive and had a devastating punch. The 2.75-inch APKWS uses a M151 10-pounder warhead with a blast radius of ~10-meters and a fragmentation radius of ~50-meters. Imagine 19 of them coming you’re way at the same time…

  3. The chances of getting any weapon that is not an on going DOD program is just about zero. If it is not a Navy Department program the probability is only very slightly better, so while there may be better choices, if they are not Navy, we are probably out of luck.

  4. “Raytheon” pulled out of the “PrSM” competition on 25 March 2020…

    ( https : // www . defensenews . com / smr/army-modernization/2020/03/25/raytheon-exits-precision-strike-missile-competition/ )

    ( https : // www . janes . com / article/95087/us-army-removes-raytheon-from-prms-competition-leaving-only-lockheed-martin )

  5. I bet some Mk.46 torpedoes could be reprogrammed to conduct the acoustic “mobility-kill” Chuck has talked about extensively in the past. The torpedo tubes could also carry ASW versions, if a small towed array sonar could be added… Given more and more USN platforms upgrading to newer Mk.50s, the Mk.46es might be easy-to-get “hand-me-downs.” These would be great additions to both the Bertholfs and Argus-class. Likewise Harpoon; the USCG doesn’t need expensive LRASM, which the Navy will be wanting each and every one which comes off the production line anyway, with it’s range. 60-100 mile range of Harpoon is plenty, and again, as USN upgrades to LRASM, they will have excess Harpoons, launchers, and controllers. I’d only put them on the Bertholfs. The Naval Strike Missile would be a fantastic addition to the Agus-class, giving them a surface warfare weapon smaller and lighter than Harpoon (but possibly more capable). This one would depend on what weapons they select for FF(X). It might be an excuse to keep production going until they need them for the new frigates. I can’t imagine a simpler, lighter, and “just effective enough” weapon to add to the Webbers than a 7-rd APKWS added to the Mk.38 mount. Fits the mission, need, and not overburdening the platform. Just my thoughts…

    • The real trouble with my idea above is training and personnel. That’s a lot of schooling, or adding on of USN personnel to CG vessels…

    • Those are for Foreign Military Sales Chuck. LCS is getting NSM as is FFGX.

      As a lot of kit will be standardized across LCS, FFGX, NSC and the OPC, NSM is probably the way to go if the decision was made to up-arm the NSC and OPCs.

      • @Malph, I agree, just interesting to see Harpoon is still being produced.

        NSM is a good deal lighter and also smarter. Looks like a good choice, particularly for smaller targets.

  6. Speaking allowed, but I know there must be reasons, if the innards of Harpoon work I wonder why a stealthier body and say radar absorbent paint haven’t been used? How much does it really cost to build one I wonder? They are already ‘cheap’ really in relative terms.

    • I’m sure Boeing pitched that idea.

      Interesting to note that the Marines have also selected NSM to fire from mobile launchers. The return of coastal artillery.

    • “RAM Paint”, consists of Fe3O4/Carbon Nanotubes Coaxial Nanfibers Poly (Methyl Methacrylete) suspended within a paint base (i.e. Expensive and Hefty). And not practical for a one time usage weapon system…

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