A further look at the Gabriel 5

The field of advanced weaponry such as anti-ship missiles is rarely a transparent one. Still, the new PTO 2020 is turning out to be quite something, being about as opaque as your favourite Ostrobothnian river following heavy spring rains.

The ANAM / Gabriel 5

The best source on the ANAM that is currently available is likely the single cutaway found on IAI’s homepage. This can then be compared to the dimensions of the Harpoon, which are well-known. Under the assumption that the diameter of the ANAM and Harpoon are similar(ish), which seems reasonable considering their very similar layout, a closer comparison can be made.

Harpoon vs ANAM
Comparison between non-ER RGM-84 Harpoon (cyan) and ANAM (dark blue). Notably the ANAM has the engine sligthly more forward, but otherwise the two match surprisingly closely both when looking at internal compartments and external features. Source: Own picture based on available cutaways

My original impression which I voiced in the last blog was that ANAM is longer and with a slightly different arrangement of the fins. Having compared the cutaway of the ANAM with that of the Harpoon (see e.g. Think Defence’s piece on the Harpoon), it does seem clear that this was a mistake, and the ANAM is in fact almost impossible to externally differentiate from the Harpoon. It should be noted that this conclusion rests on the assumption that A) the ANAM cutaway supplied by IAI is at least remotely correct, and B) that the diameter of the missiles are indeed the same. On the first account there does exist a possibility that the supplier isn’t completely honest when it comes to marketing material, but it is an OSINT-risk I am prepared to live with for the time being. On the second account, there seems to be little reason to produce a new weapon so closely modeled after the layout of the Harpoon, unless it is designed to fit the current logistics chain, including storage containers and possibly the launchers themselves. This is as I see it the only possible explanation why the Israelis chose the exact same layout and size of fins to the exact same external body. Small caveat here that the inlet might differ, as it is shrouded by the fins in the cutaway, and a retractable scoop a’la BGM-109G GLCM is a possibility. Something like this is visible in the Skimmer-video referenced in the last post, though it is unclear if that is the ANAM or a generic anti-ship missile (it does look somewhat like IMI’s Delilah HL, but the configuration of the fins is different).

One interesting point that stands out in the cutaway, however, is the internal component layout compared to the non-ER versions of the Harpoon. Crucially, the warhead occupies more or less exactly the same space as the 500 lbs (227 kg) warhead of the Harpoon. If the cutaway is correct, this would indicate that Finland has decided against downsizing the warhead compared to the current MTO 85M. The size of the fuel tank would also likely indicate a range in the 150 km class rather than the 200+ km ranges of the RBS 15 Gungnir, NSM, and Harpoon Block II+ ER. Crucially, as 150 km is more than “about 100 km“, this does not contradict that the PTO 2020 has longer range than the MTO 85M, one of the few capability details revealed by the Finnish authorities (this being confirmed by captain Valkamo).

For the sensors available to the Finnish Navy and for the relatively limited firing ranges of the Baltic Sea, blast size for range isn’t an unexpected trade-off. However, in a field where only the RBS 15 and Gabriel had a 500 lbs warhead, this might certainly have been one of the deciding factors. Notably, the traditionally conservative Finnish Defence Forces seems to continue favouring radar-seeking missiles with large warheads, operating at high-subsonic speeds.

All in all, it does seem likely that at some point after the introduction of the RGM-84D into Israeli service, the Israelis were not happy by the continued development path of the Harpoon, and decided to make a better version on their own (note that “better” might be in the narrow sense of better suiting Israeli requirements). This is not unheard of when it comes to Israeli weapons development (see e.g. Magach contra M60 Patton, or Kfir compared to Mirage V), and would make Gabriel 5 something of a cousin to the Harpoon Block II+ ER.

The DCSA-request

The Harpoon DSCA-request was discussed when it arrived, and while the Harpoon wasn’t picked, it does give some interesting pointers regarding the scope of the Gabriel-deal. It covered 112 live missiles and eight exercise ones, for a total sum of 622 million USD (532 million Euro). This is likely the absolute maximum, and corresponds to the Gabriel order including options. The quoted sum for the latter was 162 million Euros for the firm order and options for an additional 193 million Euros, for a total of 355 millions. In other words, the Israeli offer including options was 40% cheaper than the DSCA-request. Even if there are discrepancies between the two offers, the difference is big enough that the Israeli offer must have been objectively cheaper by all standards.

Israeli Sa’ar 5-class corvette sporting the Israeli stealthy Harpoon-launchers behind the forward tower. Here only a single quadruple launcher is mounted, but two can be carried (one pointing port and one pointing starboard). Source: IDF via Wikimedia Commons

In Israeli Service

As noted the last time around, the Israeli decision not to upgrade their RGM-84D Harpoons to even -84L standard is rather revealing. In an article from 2014, a ‘senior naval source’ discusses the improvements to the anti-air and land-strike capabilities of the Navy, and reveals that “planned upgrades are also scheduled for sea-to-sea missiles.” These are all part of the “overall strategic vision in which the navy plays a growing role in the IDF’s integrated warfare capabilities.”

In 2017 INS Hanit, an Israeli Sa’ar 5-class vessel, took part in the international exercise ‘Novel Dina 17‘ with a single quadrupel-launcher of a new design (note that at least one of the pictures described as showing the INS Hanit in fact shows a Sa’ar 4.5-class vessel). This was captured on picture by AP press photographer Jack Guez, and labelled as the ‘Missile boxes Gabriel’. The box-shaped launchers have to the best of my knowledge not been seen either before or since. This is not surprising, as their unstealthy and generally crude look does give the impression of them being a test-installation rather than the final mount.

Screenshot 2018-07-15 at 20.15.37
Israeli Sa’ar 5-class corvette with striped launchers. Source: Israeli Navy YouTube-channel

The Sa’ar 5 employs their Harpoons in two stealthy launchers, each holding four missiles. As discussed above, it is possible that the Gabriel can be fired from the same launcher, with only the missile control unit inside the vessel being switched out. As such, identifying which missile is carried based on the launcher is hard to impossible. However, in a YouTube-video posted by the Israeli Navy on their channel in the spring of 2017 a launcher with two longitudinal ‘stripes’ is visible. These might be vents, but in any case they differ compared to the standard version. If they are related to the Gabriel or not is impossible to tell, but there seems to be an upgraded version of the launcher introduced into service within the last year(s).

…and abroad

When Svenska Yle asked the Armed Forces about which other countries use the system, they could only confirm that other countries also use the system. Individual countries could not be mentioned because the information is classified.

An interesting question is where the Gabriel is in operational use. There is a small caveat that since this isn’t a direct quote and the interview might have been conducted in the secondary language of either the journalist or the Defence Forces’ representative, it is possible that this was a misunderstanding. However, the quote above, from an article by the Finnish public broadcasting company YLE, gives the impression that more than one country uses the missile. This obviously raises the question which country that might be?

Books can, and indeed have been, written on Israeli arms trade. In oversimplified terms, Israel is ready to export their weaponry to most anyone who can guarantee that it doesn’t end up in the hands of any of the countries actively promoting the destruction of the Israeli state. In effect, this has lead Israel to exporting arms to numerous countries in Africa, Asia, and South/Central Americas. Deals to western countries usually go through local partners (see today’s announcement about Lockheed Martin cooperating on the SPICE guidance kit). Export of earlier versions of the Gabriel have usually been tied to the export of Israeli surplus naval vessels, something which isn’t the case with the Gabriel 5 as it is so new.

In recent years, three countries stand out when it comes to Israeli exports: India, Vietnam, and Azerbaijan.

The missing link between the jewish democracy of Israel and the muslim dictatorship of Azerbaijan is Iran. Azerbaijan is in fact somewhat western-aligned, in part as neighbours Armenia and Iran are aligned towards Russia, and operate an impressive array of Israeli equipment. This includes Israeli Shaldag-class fast patrol craft and Sa’ar 62-class offshore patrol vessels. The latter are based on the Israeli Sa’ar 4.5-class fast attack crafts, and can likely lay claim to the title of the world’s most heavily armed coast guard vessels. Interestingly, Azerbaijan’s Turan news agency reported in 2011 that the country was buying an unspecified version of the Gabriel (secondary source, primary link broken). As the Sa’ar 4.5 in Israeli service is armed with the Harpoon, it is plausible that the missile system was destined for the Sa’ar 62. However, there are no indication of the system ever having been delivered to Azerbaijan, and the Sa’ar 62 currently operate with the SPIKE-NLOS (as seen in the infamous music video which confirmed the presence of Harop in Azerbaijani service). As such, it seems likely that the Gabriel was axed and replaced by the SPIKE-NLOS in the arms package.

India has bought Barak surface-to-air missiles for their newer vessels, and Vietnam is in the midst of a naval expansion program. While there are reports that some Vietnamese vessels are set to get improved firepower, nothing tangible indicate that the Gabriel would have been exported to either country.

Enter the Singaporean Formidable-class frigates. These are based on the French La Fayette-class, and is certainly one of the most formidable classes in operation in Asia. However, one odd feature is the fact that most sources list their main armament as being the outdated RGM-84C Harpoon, first introduced in 1982 and only marginally better than the original 70’s design of the -84A. While the Singaporean Navy isn’t exactly open with their armament choices, it seems that the assumption is that they share the RGM-84C version with the older Victory- and Sea Wolf-classes (the latter now retired, and curiously enough originally fitted with the Gabriel 2). The continued use of the RGM-84C would place the vessels at something of a drawback in a neighborhood featuring Exocet MM40 Block 2 and NSM, and would seem a strange decision considering the considerable cost sunk into the frigates.

There has been some rumours* that IAI participated in and lost the tender to arm the Formidable-class. Looking back, it might just be that they did participate, but in fact won. And no-one even noticed.

RSS Intrepid, second vessel of the Formidable-class. Source: Rjv25 via Wikimedia Commons
*The post reporting the rumours also discusses an Israeli missile shot showing a slender and fast missile, and speculates this could be a scramjet powered Gabriel 5. If that is the case, it is something completely else than the ANAM. My personal opinion is still that the ANAM is the likely Gabriel sold to the Finnish Navy.

The quest for MTO XX

The main anti-ship weapon in the current Finnish arsenal is the MTO 85M long-range anti-ship missile. This is a version of the widespread Saab RBS15 surface-to-surface missile named RBS15 SF-III (often this designation “Third version of the RBS15 for Suomi/Finland” is mixed up with the RBS15 Mk3 designation, which denotes a newer version, more on this below).

The MTO 85M is found on both the Rauma- and Hamina-class FAC, as well as on truck-mounted batteries firing from land. Notably, Finland has not acquired the air-launched version of the missile. The MTO 85M with its 100 km range make up the outer ring of defence against enemy surface units, and is then backed up with the 130 TK turret-mounted coastal guns firing 130 mm anti-ship grenades at ranges over 30 km and short-range RO2006 (Eurospike-ER) missiles being carried by infantry squads. The short range of the latter, around 8 km maximum, is made up for by the fact that the infantry squads are extremely small and mobile, and as such can move around in the archipelago to set up ambushes at choke points or guard minefields from being swept. However, when push comes to shove, it will be the MTO 85M that will have to do much of the heavy lifting.

One of the early renders of the upcoming corvette, featuring twin quadruple launchers mounted just aft of the mast. Source: Defmin.fi
With the launch of the Squadron 2020 project, one of the main issues will be what (or which) weapons it will feature for the anti-ship role. Preliminary renders have shown twin quadruple launchers mounted amidships, not unlike those used for the US Harpoon anti-ship missile. The Harpoon has, in a number of variants, been a sort of de-facto NATO standard (together with more famous Exocet), and new versions keep being rolled out. In many ways, the Harpoon, Exocet and RBS15 are comparable. All feature a radar seeker in the nose, are comparatively large, and uses an attack profile where they approach the target at high subsonic speeds at very low altitude, skimming just a few meters over the waves. All three are available in truck, ships, and air launched variants, with the Exocet and Harpoon also being found in submarine launched variants (this obviously being a largely academic talking point in the case of Finland). A new version of one of these three could very well provide the main striking power on Finland’s upcoming corvettes, and would be in line with Finland’s rather conservative view on defence acquisitions, preferring evolutionary rather than revolutionary increments.

The joker of the pack is the NSM provided by Kongsberg, and selected (in its air-launched JSM-version) to be the prime anti-shipping weapon for the F-35. The Norwegians has a reputable reference in the AGM-119 Penguin, which is a short-ranged IR-seeker missile that has seen significant export sales, crucially as a helicopter-launched weapon to the US Navy. The system was also operated by the Swedish Navy as the Rbs 12. The NSM is altogether different though, and its performance and size places it in the same category as the above-mentioned missiles, with one crucial difference: it uses a passive IIR-seeker, making it worse at handling adverse weather conditions but potentially better at coping with modern countermeasures which have heavily focused on spoofing radar seekers. It might also have an easier time in the cluttered archipelagos of the Finnish coast.

A Harpoon missile blasts off from a US cruiser. Source: Wikimedia Commons/DoD
Another noteworthy “western” (with the word used in a very loose sense) missile is the Japanese XASM-3. Where most western manufacturers have preferred high-subsonic speeds, Soviet/Russian missiles have in several instances instead aimed at very high speeds, including up to Mach 3. The XASM-3, currently undergoing testing, is one of the few western projects specifically aiming for a high top-speed, with Mach 3 having been mentioned. The Japanese do have a history of successful locally-produced subsonic missiles, with the anti-shipping mission naturally being of high priority for the island nation. While this certainly brings something unique to the table, I still see it as unlikely that this Japanese ship-killer would find its way into the Baltic Sea.

For Finland, a number of pieces are bound to move around within the near future. As mentioned, the RBS15 SF-III is not the RBS15 Mk3 used by Poland, Germany, and Sweden, and will need to be replaced at some point. The system itself celebrated 35 years since the first launch this summer, and while it might sound much, by then both Harpoon and Exocet were already tried and proven systems in service. The important part is that the basic missiles of all three families have been continuously updated, and current versions share little except name and outward appearance with their brethren of the 80’s.

The Finnish truck-based launcher mounting the MTO 85M. Source: Wikimedia Commons/MKFI
What happens if one fails to keep abreast with current development has been clearly shown by the attacks on USS Mason during the last weeks, where the Iranian C-802/Noor missiles apparently have scored nought for six in their attempts at targeting a modern destroyer. Important is also to recognise that while many associate anti-ship missiles with the attack on HMS Sheffield in the Falkland’s War, where the 4,800 ton destroyer was sunk by a single Exocet, history have also shown that a 150+ kg warhead isn’t necessarily enough. Four years after HMS Sheffield, the USS Stark was hit by two Exocets while sailing in the Persian Gulf, but the 4,100 ton frigate managed to stay afloat despite the damage done by the impact and ensuing fire.

For Finland, the MTO 85M is bound to receive a one-for-one replacement, and not only is it likely to be introduced on the new corvettes, but it is likely that the same missile will be implemented on the Hamina-class following their MLU and to the vehicle-mounted batteries as well. The great question is the third part of what logically would be a triad, namely an air-launched weapon. Currently the Finnish Air Force is in the situation that it feature a naval fighter, but lacks any serious anti-shipping capability. There would be a seemingly simple solution, as while the JASSM has been the flagship of the newfound Finnish air-to-ground capability, another missile has also been introduced: the AGM-154C JSOW. While the missile originally was conceived as a ‘pure’ cruise missile, the latest Block III version (C-1) is able to be used in the anti-shipping role as well. The first JSOW C-1 was test-fired from a F/A-18F Super Hornet earlier this year, and upgrading to this version could provide the Finnish Defence Forces with a diverse anti-shipping capability.

While getting anti-shipping missiles for the Hornet might not be realistic, the talk about giving HX an expanded range of capabilities compared to its predecessor gives some reason for optimism. The question then is should HX be allowed to influence the choice of new AShM?

© Dassault Aviation - V.Almansa
A Rafale M takes off with a single Exocet mounted on the centre-line pylon. Source: © Dassault Aviation – V. Almansa
For the current HX candidates, they all have their local weapons of choice. In short, the F-35 comes with JSM/NSM, Gripen with the RBS15F, Rafale with the AM.39 Exocet, Eurofighter with the Marte-ER, and the Super Hornet has a whole battery of alternatives lined up, including Harpoon, LRASM (essentially an anti-ship development based on the JASSM), JSM/NSM, and JSOW C-1. Note that for several of these, the missiles aren’t integrated yet, but in different stages between coming at some point/unfounded decision/funded/scheduled/undergoing testing.

At first glance, stating that the Navy follow the cues of the Air Force to get what they’re having might seem tempting. However, there are a number of issues with that thought. To begin with, the air- and sea-launched versions not necessarily share enough components and similarities in handling to create any measurable synergies in acquisition or training. The HX and Squadron 2020 timelines are also somewhat conflicting. The main issue is that as HX likely will get a fighter with a missile already integrated, this would create a situation where a secondary weapon system of the Air Force would determine the main striking power of the Navy. While this would equate to putting the cart in front of the horse, the alternative is that Finland would pay for the integration of the Navy’s missile of choice onto the Air Force’s fighter of choice, or that the Navy and Air Force use different weapons. This is not necessarily a bad thing, sporting different weapons makes it harder for the target to know how it should respond to a threat, but the question is if this politically will be a harder sell, regardless of whether it actually is more expensive or not.

An interesting alternative is the launchers recently sold by MBDA to Qatar. The coastal launchers are remarkable in that they can employ both the Exocet MM.40 and the lighter MARTE ER. This could be an interesting solution especially for the upcoming Finnish coastal batteries, where a hi-low missile mix could make room for more reloads while still sticking with a single launcher.  The MARTE can also be employed by the NH 90, though in the Finnish case this would probably not be cost effective. To begin with, the TTH version lack a suitable search radar, and would have to rely on outside targeting data. On today’s networked battlefield this isn’t necessarily a big deal, but the bigger issue is the fact that the Army will need every single one of their helicopters for tactical transports.

So, which missile will it be that finds its way onto our new corvettes? Harpoon is slowly on the way out for the US Navy, and while it probably will still see use for the next few decades, adopting it as a new system at this point doesn’t make much sense. The JSM with its IIR-seeker probably won’t make the cut due to its limited all-weather capability, though it could be an interesting complement as an air-launched weapon, and the apparent positive experience with Kongsberg’s NASAMS and the recent acquisition of Patria by Kongsberg might well come into play when discussing this option (especially if the F-35 bags the HX-contract). This leaves the updated RBS15 Mk3 and the Exocet MM40 Block 3. With Saab’s strong position as the current supplier of both the MTO 85M and the 9LV combat management system, they seem like the favourite. Saab has also started the marketing campaign already.

A NSM being test-fired from LCS USS Coronado. Source: Wikimedia Commons/US Navy by Mass Communication Specialist 2nd Class Zachary D. Bell
But while Saab might be the favourite, MBDA should not be underestimated. The company has a wide and varied portfolio when it comes to missiles, and has the ability to offer a one-stop-shop solution for the whole missile-package for the corvettes as shown by the recent deal in which MBDA sold long-range anti-ship missiles as well as long- and short-range air-to-surface missiles to four new Qatari corvettes under a 1 billion euro deal. The deal covered Exocet MM40, Aster 30, and VL Mica missiles, which is a combination that would fit the Finnish requirements very well, and significantly boost the air defence network covering southern parts of Finland (including Helsinki). It would also supply the Finnish forces with an anti-ballistic missile capability on a platform with higher operational mobility compared to a ground-based system. Saab crucially lacks the VLS-based surface-to-air missiles, but can on the other hand bring both a state-of-the-art anti-ship missile and a modern anti-submarine torpedo developed for littoral conditions.