ESSM for the Pohjanmaa-class

Yesterday the Finnish MoD announced that the RIM-162 Evolved SeaSparrow Missile (ESSM) has been chosen as the main air defence weapon for the upcoming Pohjanmaa-class corvettes.

The weapon systems already acquired for the Pohjanmaa-class include Torped 47 ASW-torpedoes (Sweden), Gabriel anti-ship missiles (Israel), and ESSM surface-to-air missiles (USA). Source: Finnish MoD

The DSCA cleared the ESSM for export already a year ago, and crucially this was for the quad-packed Mk 25 launcher. This is fitted into the Mk 41 VLS launch system, which is a module of eight box-shaped shafts in which the missiles are stored until launch. The Pohjanmaa-class will be the smallest operational vessel fitted with the system by some margin (Taiwanese test bed LCC-1 Kao Hsiung is roughly same size), and interestingly enough it seems the full strike-length cells will be fitted.

This will give the corvettes a total of 32 ESSM per vessel (the astute observer will notice that the DSCA request only cover 68 missiles, meaning that further orders are to be expected), a significant upgrade in both range and numbers compared to the Hamina-class. While the Hamina’s Umkhonto have an IR-seeker, the ESSM have a passive radar seeker, which gives better performance in bad weather. When it comes to active versus passive radar seekers, unlike the situation in air-to-air combat where requiring the launching platform to keep it’s radar on target conflicts with the need to evade incoming fire, on a surface ship it isn’t necessarily as much of a problem as the radar stays active in a 360° search sector throughout the engagement.

Range is another major factor. The increase in range from 12 to 50 km gives a 17 times greater theoretical area covered. It has also been announced that the vessels, both as sensors and as shooters, will be integrated as part of the joint air defence network of the Finnish Defence Forces. This will give a significant boost to the air defences around the southern coastline, a key area for the country due to its concentration of population centres, ports, and heavy industry. This would be of particular importance in the early stages of a conflict, where the ground based systems of the Army might not have had time to deploy in the field.

The Mk 41 also allows for significantly larger missiles to be used, including the Standard-family of the US Navy and land-attack weapons such as the TLAM. However, with only eight available cells per corvette, swapping out a quad-pack of ESSM for a single longer-ranged SAM has serious effects on the ability of the vessel to fend off prolonged attacks. The Mk 41 could be used as a platform for missile defences to target systems such as the Iskander. E.g. Denmark is planning on doing this, but this would effectively tie up our limited number of corvettes in point defence missions along the southern shore.

An important factor in the choice was likely the widespread use of the Mk 41 and ESSM-combination, which ensure the ability to quickly fill up stocks if the need arises (i.e. we can hopefully get more missiles from US or even Norwegian stocks if we get dragged into a war).

The choice of ESSM will also have indirect effects on the Army’s GBAD program for a medium-range SAM-system. The inability of MBDA to secure a naval CAMM-order from Finland will likely impact the chances for the same missile on land as well. The NASAMS-compatible AMRAAM-ER in turn got a further boost, as it share some parts commonality with the ESSM (the ESSM can also be fired from the NASAMS launcher, though it is dubious if the Army wants a passive seeker head). Overall, MBDA has had a surprisingly hard time in securing any kind of orders in Finland. Time will tell if HX changes this.

On a final note, it is nice to finally see the MoD and Navy fully switch to referring to the vessels as the Pohjanmaa-class. The name has been known for quite some time, and in building a connection between the general public and the project it certainly has a nicer ring to it than the formal Squadron 2020.

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Naval Defence Day 2018 – Only Change is Constant

The annual Finnish Naval Defence Day was held a week ago, with the usual crowd of Naval officers, reservists, and stakeholders meeting up for a day of lectures and discussion on the current state of the Navy and its reserve, as well as topics of general interest to the crowd.

The Finnish Navy and the Baltic Sea

The year so far has seen the continuation of several of the programmes initiated earlier. Two Haminas are currently undergoing their MLU, with the other two awaiting their turn. The programme is largely on schedule, with the small delay in the PTO 2020 anti ship missile programme translating into a slight setback for the Hamina-upgrade. The other major new weapon system, the light torpedo, is on the other hand on schedule, with the first batch of Finnish Naval personnel currently in Sweden undergoing training. The training deal both with the particular system (or rather systems, as Finland first will lease and operate the current Torp 45 before switching to the acquired Torp 47 once they start coming of the production line), as well as general ASW tactics which is something of a new field for the Finnish Navy.

The New Lightweight Torpedo, still awaiting its Finnish designation, will provide a giant leap in Finnish ASW-capabilities. Picture courtesy of Saab Ab

For the Gabriel, the Navy remains as tight-lipped as they were when first announcing the decision. The message that Gabriel was the overall best performer in all categories was reiterated, with a comment that the fact that it did so at a very competitive price was an important additional factor. And while no new information was given, the excitement amongst the officer corps regarding the new system was palpable every time one brought up the topic.

Squadron 2020 is moving on slowly but steadily, with the contract date with the yard being planned for January/February 2019. This has dragged on a bit, due to the demanding situation of there being only one supplier. As this means there are no pressure on price and risk-taking from the competition, the negotiations have proved trickier than expected, but the Navy is confident that a good contract will be signed. For the combat management system the situation is more traditional with three suppliers shortlisted, and here the tender has been delayed a bit to be in lockstep with the shipbuilding negotiations. On the whole the project is moving along more or less as expected, the delays in signing the shipbuilding deal aside.

The inside of the TK 130 gun barbette during operation. It is the most modern turreted coastal defence gun worldwide and more survivable than generally perceived, but it is still approaching retirement. Source: Merivoimat FB

Past Squadron 2020 and the Hamina MLU further modernisation programs awaits. The 130 TK fixed coastal artillery will have to be replaced during the second half of the 20’s, and as some batches of the manportable short-range coastal defence missiles (Eurospike ER / RO2006) will start to reach the end of their shelf-life in the same timespan the Navy is taking a look at the larger picture when it comes to coastal defence and what possibilities there currently are on the market to replace the outgoing guns and missiles.

Another topic is new vessels, where the logistics of supporting troops in the archipelago holds its own challenges. One topic is how these smaller auxiliaries should be acquired, as the tendering process naturally differs from how corvettes and fast attack crafts are planned and bought. And speaking of buying fast attack crafts, on the horizon the first studies for the eventual Hamina-replacement are starting to take place.

The export variants of the 3M-14 land-attack and 91R1 ASW versions of the Kalibr-family. Source: Vitaly V. Kuzmin via Wikimedia Commons

But it is not only Finland that is actively modernising and practicing. The Russian Baltic Fleet is receiving new equipment, and the Baltic Sea is also home to many temporary high-end visitors when newbuilds are performing sea trials here. Amongst the systems mentioned by name we had the Steregushchiy-class corvettes and Project 636 “Kilo II”-class submarines, as well as the 3M-54 and 3M-14 Kalibr (which are the anti ship- and land-attack versions of the same missile) and the Redut-family of surface-to-air missiles. The Kalibr-family it was noted is in fact an issue for the whole of the Finnish Defence Forces and not the Navy alone, considering the fact that the range from Kaliningrad and the Barents Sea puts large parts of southern and northern Finland respectively inside the strike range of the ship- and sub-launched cruise missiles.

On the other hand 2018 has been largely uneventful in the Baltic Sea when it comes to major incidents, and while Russian activity remain at a high level, Northern Coasts 18 as an example took place without anything out of the ordinary. While the increased level of readiness has been taxing on the Finnish Navy, they are proud of their work in not letting any vessel move in waters “close to us” without being identified (no word on how far out the “close” reaches). To ensure this the Navy is employing a range of measures, including not only own vessels and sensors, but also cooperation with the Border Guards and the NH90 helicopters of the Army Aviation.

Unmanned technology underutilised?

Unmanned and autonomous systems was the main topic of discussion, with a particular focus on the utilisation of these technologies in the maritime domain. The rapid minituarisation and commercialisation throughout the field means that even smaller countries such as Finland are able to start investing in unmanned technology on a broader scale. It is also notable that this will not, or at least should not, simply lead to pulling people out of today’s systems and replacing them with computers. Rather a completely new set of options open up, with the ability to have platforms measured in centimeters and decimeters instead of tens of meters. Additionally endurance isn’t necessarily a limiting factor anymore, especially for surface and subsurface platforms which can wait and float freely for prolonged periods of time. On the other hand, even with improved machine learning and autonomy amongst machines, robots are still extremely good at handling a specific task or scenario but significantly poorer at reacting to surprises. As such we are increasingly entering an age where the human player is needed not for the expected tasks, but as the flexible element to take control when the unexpected happens.

Saab’s AUV62 AT is an underwater target which can mimic different submarines. As part of ASW exercises the AUV62 is let loose, after which it operates fully independently for several hours, relying on dead reckoning and reacting intelligently to enemy actions, all while recording everything that happens. Imagining a reconnaissance role for a similar system is not difficult. Picture courtesy of Saab

While drones currently are sub-systems rather than main systems, their revolutionary nature shouldn’t be underestimated. In the naval domain, getting a lightweight synthetic aperture radar up in the sky aboard a lightweight drone is suddenly a serious alternative to the traditional mast-mounted surface search radar, providing both over-the-horizon range and having the added benefit of letting the host vessel’s sensors remain silent. An interesting example is Israel who has retired manned maritime patrol aircraft and completely replaced them with remotely piloted ones.

On the other end of the scale we have commercial off-the-shelf systems which has seen use in both Ukraine and Syria both to provide targeting data, perform reconnaissance, and for direct attacks with grenades or fixed warheads (the later use starting to blur the border between UAS/UAV and cruise missile). In the Ukrainian case, the targeted attacks against ammunition depots have shown that simple and cheap system can take on operational/strategic roles (Yes, this is something that the Finnish Defence Forces have recognised in their current operational planning. No, you won’t get further details).

But while everyone recognises that unmanned systems are here to stay and will only increase in both numbers and importance, in many ways the final breakthrough has not necessarily taken place. Comparisons were made to the state of aircraft at the outbreak of the First World War, where no-one really knew what worked and what didn’t, but after a few years of fighting the air war had reached a form which it would keep for decades. Similarly, at the outbreak of the Second World War much of the technology that would transform the battlefield between 1939 and 1945 was already available, but only the outbreak of the war led to inventions such as the jet engine being rushed into service. Currently a number of unmanned technology demonstrators are making rather slow progress in getting into widespread use, partly because lack of funding, and partly because of questions regarding artificial intelligence and the authorisation of use of force. If a significant peer-vs-peer conflict would take place, it is likely that a rapid roll-out of these existing cutting-edge technologies into operational systems would take place.

The killer robots amongst us? Here PM04, a smart impulse sea mine in operational use by the Finnish Navy since well over a decade ago. Source: MKFI via Wikimedia Commons

But as we consider the moral implications of ‘killer robots’, are we just overlooking the developments that has already taken place? What is the principal difference between an autonomous armed UAV, and modern impulse mines? These have sensors and a certain level of logic allowing them to discern between targets, and once deployed they will fully autonomously perform their mission, no surrenders accepted. Did we actually deploy armed killer robots over a decade ago, without ever noticing?

The Rocketeers

In the midst of the strategic acquisitions it is easy to get locked in on the choice of platform, whether it is the HX fighter or the Pohjanmaa-class corvettes. But someone has to supply the teeths to make them able to bite, and this is where companies such as MBDA come in to the picture.

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A Dassault Rafale being armed. Picture courtesy of: © Dassault Aviation – V. Almansa

MBDA is yet another of the numerous joint ventures created in Europe in a time when not even the major regional powers can muster enough of a demand to warrant developing their own high-performance weaponry. However, the company is something of an outlier in that several of the products they have on their shelf have a good reputation both when it comes to project management and the cost/capability ratio of the final product.

Arming HX

Our basic philosphy is that we are platform agnostic, we serve everybody

MBDA has a product integrated or somewhere down the propsed upgrade paths on most HX-candidates. The flagship is without doubt the very-long range Meteor, largely held to be the most capable weapon in beyond-visual range engagments against fighter-sized targets currently operational. The introduction in service aboard the JAS 39C Gripen as part of the MS20 upgrade “changed the behaviour over the Baltic Sea”, both on the part of the Swedish fighters carrying them as well as for the Russian aircrafts they meet there. Courtesy of the ramjet engine and the 100+ km range, it provide “at least three times the no-escape zone” of current medium range missile (read: AIM-120C AMRAAM). The missile will find itself under the wings and fuselages of the Rafale and Typhoon within the next few years in addition to Gripen (both Charlie and Echo), creating an interesting dilemma for a manufacturer supplying highly complex equipment which is to be integrated into competing platforms. MBDA’s solution is to assign each aircraft and country it’s own manager, making sure that there are watertight bulkheads between any platform specific information entering the company.

For Gripen in HX, that man is Peter Bäckström, MBDA’s director exports for the Nordic region. An engineer by trade, he worked on a number of subsystems for the Meteor and TAURUS KEPD 350 before moving into sales. He has a clear view about what made the Meteor different from so many other projects. “It was born out of a requirement, a need for a 100+ km capable missile”, he notes, before continuing. “Game changer is a worn-out term, but this really is. It establishes a new set of rules.”

For the Gripen E, the Meteor and the increased number of hardpoints changes what has often been decried as a light fighter into a serious BVR-force, with a maximum load of seven Meteor and two short-range IRIS-T on the wingtips. While the maximum load might not be suitable for everyday carriage (if nothing else then due to budgetary constraints), it still places the air-to-air weapons load more or less on par with e.g. the Rafale.

Meteors
The fulls-scale Gripen ‘Echo’ mock-up showing three belly-mounted Meteors. Source: Own picture

But Meteor is far from the only thing MBDA has to offer for HX. ASRAAM is also found in their arsenal, a rather unique missile in being designed for ranges which are usually the realm of radar-guided ones. Given this, I have to ask Bäckström if there is any truth to the rumours that it can outrange the AIM-120 AMRAAM. Bäckström just smiles, and simply quips “It’s a very good missile”. In roughly the same class, the MICA-family (with both IR- and radar-guided versions) is set to be upgraded within the next decade. Unlike the Meteor, from the viewpoint of HX MICA is tied to Rafale. If Finland buys Rafale, we will likely get the MICA as well, but if any other aircraft takes home HX the MICA likely won’t make it’s way into the Finnish inventory (though it isn’t ruled out).

For heavy cruise-missiles, there’s not one but two options. The best known is likely the combat-proven SCALP/Storm Shadow, sporting inertial/GPS/terrain reference guidance and an IIR-seeker for terminal guidance. The different parameters which can be set include fusing (air burst, impact, or penetration) and dive angle. The missile is designed to feature a very high level of automation on the part of the pilot, meaning that it is suitable for single-seat fighters as well as twin-seaters.

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A TAURUS KEPD350 being loaded onto a Sapnish F/A-18 Hornet (C.15). Source: Ejército del Aire Ministerio de Defensa España via Flickr (CC BY-NC 2.0)

The Taurus KEPD 350E is the other alternative, being built to a different requirement for the German and Swedish Air Forces (though Sweden is yet to acquire and put the weapon into operational use). The ‘350’ in the name comes from the requirement of 350 km range in all conditions at all drop heights. In practice, this means that the range when dropped from height is well above 500 km. It can be dropped from as low as 100 meters, which often is little more than a gimmick for stand-off weapons. However, for Finland this might actually be a useful feature, as there is value in staying below the radar horizon of the Russian ground based air surveillance radars. The 480 kg MEPHISTO penetrating warhead with pre-charge is also described in grand terms.

This is a real penetrator, not a ‘put down it down in a hole and blow it up’-warhead

TAURUS actually did compete for the contract which was won by the JASSM regarding integration into the Finnish Air Force F/A-18C Hornets. It is hard to tell what made the TAURUS come in second back then, whether there were particular political considerations or ease of integration (US fighter – US missile, though ROKAF has opted for the TAURUS for their F-15K Strike Eagles and Spain is integrating it on the Hornet) which played into the decision, or whether it was purely based on performance of the missile in question. In any case, the TAURUS is set to be integrated on Typhoons and not completely unlikely to appear on the 39E Gripen, so it wouldn’t be altogether surprising for it to fill that JASSM-shaped void after the retirement of the Hornet.

Ground-/Ship-based

While the airborne systems grabs all the attention, the question of air defence system for the Pohjanmaa-class (Squadron 2020) is still unresolved. The last of the major weapon systems open, it will pit ESSM against the CAMM-ER (Barak 8 has been mentioned in the speculations, but is likely too large. I-Derby might be on offer instead). CAMM and CAMM-ER shares some of the same ancestry as the ASRAAM, but has developed into a rather different beast. The weapon feature a newly developed radar seeker, and is able to be quad-packed into a Mk 41 (or the smaller and lighter ExLS) just as the ESSM. From there the CAMM+family is soft-launched, and sports ranges in the 25 to 45 km class, depending on exact version and target. Interestingly enough, packed into the launcher it is completely maintenance free for a decade. This also ensures that once Finland has gotten the missiles, it is possible to operate them completely independently from the supplier. Or as Bäckström describes it:

A sovereign supply solution.

The weapon is already operational with the Royal Navy (and has been sold to other nations), but perhaps even more interesting is that the British Army performed their first firings of the Land Ceptor (known as EMADS in mainland Europe) earlier this year. If MBDA manages to get the CAMM-ER chosen as the main air defence weapon for the Finnish Navy, MBDA could suddenly claim synergy effects in the race for a longer-ranged ground-based air defence system for the Finnish Army. So far the ability of the NASAMS systems (already in Finnish service as the ITO12) to fire the longer-ranged AMRAAM-ER has made it a favourite, but questions has also been raised if that would mean putting too many eggs in the same basket. Notably the CAMM-ER would also provided the altitude coverage the Finnish Army is looking for following the retirement of the Buk-M1. A Land Ceptor solution able to use a joint missile stock with the Navy’s corvettes might suddenly be a very interesting proposition.

Land ceptor
Land Ceptor during test fires in Sweden earlier this year. The time lapse shows the cold launch sequence in which the missile is flung upwards out of the tube, and only then firing its engine. Source: UK MoD (Crown copyright/OGL)

Another interesting thing to note is that MBDA is quick to point out that the missile would fit nicely into the Swedish organisation as well, as an all-weather mid-tier missile between the Patriot and the IRIS-T. While currently all light is on the Patriot-deal, it is clear that two understrength air defence battalions won’t provide the air defence coverage needed by the Swedish Army, and MBDA raising the benefits of a joint Finnish-Swedish buy (either of whole systems or missiles) might be worth keeping an eye on. Normal caveat about companies liking to market that they are in negotiations/close to a deal applies…

The draft text has been read through by MBDA, to make certain that it only contain non-classified information and general comments. Minor changes followed as part of the feedback received from them.

Gabriel announced for PTO2020

The decision on one of the most important weapon systems for the Finnish Navy has become public today with the surprise announcement that Israeli Aircraft Industries’ Gabriel has been chosen for the PTO 2020-contract. The PTO 2020 will be the main ship-killing weapon of the Navy, being used on the Hamina-class FAC and the Pohjanmaa-class corvettes (Squadron 2020) as well as from truck-mounted batteries ashore. As such, it will replace the current MTO 85M (the RBS15 SFIII, a customised RBS15 MkII). This also effectively kills alls speculation that there would be a joint anti-shipping weapon operated by the Navy and by the Air Force, as there seems to be no air-launched version available for fast jets.

First a short discussion regarding the designations: IAI never mention Gabriel on their homepage, but they do market the Advanced Naval Attack Missile, and most sources agree that this is the Gabriel V. The odd one out is CSIS, which lists two versions of the Gabriel V, of which the ANAM is a shorter-legged and newer version of the original Gabriel V, which instead is designated Advanced Land Attack Missile. Also, the version of Gabriel bought is not publicly confirmed by the Finnish MoD, but there’s few possibilities. My working hypothesis is that while there might be slightly different versions the missile most commonly described by the Gabriel 5 / Advanced Naval Attack Missile designations is in fact the one bought by the Finnish Defence Forces.

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Probable Gabriel V launch from a Sa’ar 5-class corvette during Israeli SINKEX in 2016. Screenshot: IDF exercise video

Looking at the field, it was clear from the get-go that the big dividing line was between the IIR-seeker of the NSM compared to the traditional radar seekers of the rest of the field. Coupled with the stealthy body of the missile, this allows the NSM a completely passive approach. The phrase “they never knew what hit them” has never been truer. However, the world of physics also dictate that IIR-seekers perform worse in adverse weather conditions (snow, rain, fog, …) compared to radar ones, a serious drawback for any weapon designed to operate in the northern parts of the Baltic Sea. While Kongsberg always claimed that the NSM offers true all-weather capability, it has remained impossible to judge the true differences based on open sources. Also, the Finnish Defence Forces is known as being somewhat conservative when adopting new technology, preferring evolution over revolution. This became evident once again with the decision to opt for the tried and tested radar seeker, and notably stealth isn’t as important for a sea-skimming missile were detection ranges are extremely short.

The Gabriel has an interesting history. A month after the end of the Six Day War in 1967 the Israeli (ex-Royal Navy) Z-class destroyer was attacked without warning by three P-15 Termit anti-ship missiles from an Egyptian Project 183R Komar-class vessel sitting inside the harbour of Port Said. While tactical lessons of a WWII-vessel being hit by three missiles fired from inside a port basin might be discussed, it was clear for the IDF that a modern anti-ship missile was needed, and the Navy took over the failed Luz-program of surface-to-surface missile to produce what became the first version of the Gabriel. This proved to be an excellent weapon in the Yom Kippur War of 1973, where the Israeli Navy was the sole service branch to completely sweep the floor with the enemy.

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The Gabriel missile was already once on its way out. Here the launcher of INS Mivtach, an ex-Israeli FAC currently a museum ship in Haifa which originally sported the Gabriel but changed to Harpoon from 1984 to its decommissioning in 1996. Source: Own picture

Development of the Gabriel continued, but by the mid-80’s the Harpoon was being introduced in Israeli service, and it looked like it spelled the end of the indigenous weapon. However, in a country famous for resurrections, death should never be taken for granted, and by the early years of the new millennium analysts where starting to question why Israel wasn’t upgrading their stocks to the new RGM-84L standard. Rumours started spreading about a new weapon being development.

The exact specifications of the Gabriel V are shrouded in secrecy, but it seems to be built according to generally the same form factors as the Harpoon. The first relatively confirmed sighting of the new weapon came two years ago, when a SINXEX involved the Israeli Navy firing a Harpoon followed by a new weapon. The stills are blurry to say the least, which seems to indicate a faster launch speed and/or worse camera than used to shoot the corresponding Harpoon launch. Another one of the few publicly available pictures/renders is found in this video, where an unspecified anti-ship missile is available as part of the IAI Skimmer-package for maritime helicopters. An air intake below the missile fuselage is found on the helicopter video but not visible upon launch in the SINKEX, but might be retractable or specific to the air-launched version.

Gabriel
A twin launcher for the original Gabriel with the carachteristic twin X-array of fins. The first generations of the missiel bear nothing but the name in common with the missile now acquired by the Finnish Defence Forces. Source: Own picture

On their homepage, IAI offers a few choice insights into the weapon. It does sport and active radar seeker, and while Israel has no archipelago whatsoever, they are situated close to one of the world’s busiest shipping lanes with the number of civilian and neutral vessels vastly outnumbering those of potential targets at any given time. This means that the missile should feel right at home in the Baltic Sea. The weapon also reportedly “copes with rapidly evolving tactical situation”, which can only mean that it sports a datalink.
It also “penetrates hard-kill defenses”, which likely is a cover phrase for end-phase maneuvering. From the video of the SINKEX the impact point low on the hull is visible, though it is impossible to tell whether the missile shown impacting the tanker is in fact the Harpoon or the Gabriel. On the cutaway it is evident that the weapon has a jet engine.

The size of the warhead is unclear. RBS15 sports an impressive 200 kg warhead, while Exocet sports a 165 kg one, the Harpoon ER has shifted down from a 220 kg to a 140 kg warhead, with NSM also having a 120 kg one. The question of what kind of destructive firepower is needed for the Navy to effectively stop the Baltic Fleet short in their tracks is an interesting one. In short, 200 kg of explosives going off won’t send a frigate or destroyer-sized target to the bottom of the Baltic Sea. A good example here is the attack on the Iranian 1,100 ton frigate Sahand. which was hit by five 220 kg warheads (including three Harpoons) and cluster bombs, and still floated for hours before fires reached the magazines of the ship. A common theme is that fires might however prove troublesome, as was seen with both the Swift, hit by an Iranian C-802 near Yemen, and the HMS Sheffield hit by a single Exocet in the Falklands war. In both cases the ensuing fires caused significantly more damage than the warheads themselves. In the case of the Sheffield, the warhead seems to have failed to detonate, but the impact put the main firefighting systems out of action, severely hampering the fire-fighting effort.

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Probable Gabriel V in the leftmost picture. Screenshot from IAI marketing video

If I had to take a guess, the warhead size of the Gabriel is likely closer to 120 than 200 kg. However, it can be argued that A) vessels need not be sunk to be effectively put out of action, and B) the majority of the vessels of the Baltic Fleet are relatively small compared to blue water ships such as destroyers. Also, modern warheads do pack a larger punch compared to similarly sized ones dating back to the 80’s. All in all, the choice to downsize from the current warhead size probably wasn’t a major factor in deciding the lethality of the Finnish Navy

One thing that has potentially been seen as an issue for the Gabriel has been the lack of shore-based systems. While the technical difficulties of creating a new launching system by mounting the tubes on a truck aren’t overwhelming, the certification process still will require some additional funding. Apparently this still fit within the given cost/capability brackets, especially as the MoD states that the deciding factors have been “performance vis-à-vis acquisition costs and schedule, lifecycle costs and security of supply, and compatibility with existing infrastructure and defence system”. Notably the maintenance will be done in Finland.

The Gabriel was decidedly something of an underdog, but it is clear that the Navy went into the project with an open mind and looking for the best option instead of just continuing in the tried and tested tracks of the next RBS15. Following the Polish and German export orders for the RBS15, diversifying the anti-ship missiles of the western countries around the Baltic Sea is also a good thing, as this makes it harder for the Baltic Fleet to optimise countermeasures.

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INS Haifa (S322) firing an early Gabriel. Source: Nir Maor via Wikimedia Commons

The weapon also has a secondary land-attack capability, although the damage of the comparatively light warhead deals to any kind of hard target isn’t too impressive and the missile comes with a relatively hefty price tag. It could potentially have a role in taking out soft high-value targets, such as the kind of long-range radar systems. This demonstrates another case of a Finnish defence program moving into what the US likes to call ‘cross-domain’. In other words, joint capabilities where the ground, naval, and air domains interact over the boundaries to support each other either through kinetic effect or by providing targeting data for each other. As such, it does provide another part of the Finnish deterrence picture, further strengthening the ability of the Finnish Defence Forces to hit targets at long-ranges (most sources seem to agree upon at least 150 km range).

Imagine the following scenario: an HX-fighter identifies an enemy brigade headquarter being temporarily set up in the terrain close to highway E18, outside of the range of the Army’s long-range multiple rocket launchers. The maritime threat level is however low, and the Navy dispatches two Hamina-class FAC’s which in a few hours travel from their hiding locations near Örö, to take up positions west of Suomenlinna within the air defence umbrella created by the Army’s ground-based SAM systems covering the capital. From there they fire a salvo of PTO 2020’s, which strike the target 150 km east, not necessarily putting it out of action but dealing severe damage to it. While the missiles are still in the air, the Haminas retreat back to the safety of the cluttered archipelago, stopping for a refill of missiles at one of the several smaller ports found along the Finnish coastline. The whole operation is over well within 24 hours from that the fighter first spotted the target. That is cross-domains fires and joint capabilities.

9LV offered for Squadron 2020

1.2 billion Euros. That’s the quoted cost for Finland’s four new Pohjanmaa-class corvettes being built under the Squadron 2020-project. An estimate thrown around is that roughly half of that sum is the ship itself, and the other half is the naval specific items. While Rauma Marine Construction, RMC, has more or less secured the shipbuilding contract, the fight is still on for the “battle system”. This consists of the weapons, sensors, combat management system, and their integration into the vessel, and with a contract likely coming in at over half a billion Euros, it has certainly grabbed the attention of the shortlisted companies.

One of these is Saab (the other two being Atlas Elektronik GmbH and Lockheed Martin Canada Inc), and this means that I find myself together with a small group of Finnish journalists and their photographers in a nondescript conference room at Saab’s facilities in Järfälla just outside of Stockholm. The large site include a number of different production as well as R&D facilities, and everything is designated a protected site by the Swedish authorities, meaning that we have to pay close attention to what we are allowed to take pictures of. The reason is simple.

Things happen quite often, more than you know.

What exactly happens is left open to imagination, but it is clear that it includes both cyber security as well as people physically moving around in the vicinity of the site.

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A Trackfire in ‘Western’ configuration with a heavy M2 Browning machine gun an a light FN MAG machine gun. The Finnish ones mount the NSV and PKM for these roles respectively. Source: Own picture

But if Saab isn’t too keen on discussing the details of attempts at intelligence gathering directed against them, they are very keen on discussing Finland. “It’s almost a home market for us”, senior director for Naval Combat Systems Mickael Hansson explains. “We are very proud of that as well” he says and points to the currently installed product base in the Finnish Navy. This covers everything from the Trackfire remote weapon system which the Navy has developed something of a love affair with (it has been bought for all three classes being built or undergoing MLU’s during the last years), via radars, remotely operated vehicles, communication systems, missiles, and on to the 9LV combat management system.

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Jonas Widerström has got a computer with way cooler games than yours. Source: Own picture

The 9LV is found in the Rauma-class, and soon in the Hamina as well as the system was chosen for the MLU. When asked what he believes were the deciding factors, Jonas Widerström, Saab’s Naval Sales Director Finland, mentions price, harmonisation with the Rauma-class, and above all the robustness of the system. Widerström should know, being a retired naval anti-aircraft officer having served aboard Swedish corvettes he has ample experience of the 9LV. Interestingly enough, the Hamina-class currently sports Atlas Elektronik’s ANCS 2000 but instead of upgrading this the Finnish Defence Forces chose to tear it out and replace it with Saab’s offering. While the Hamina MLU technically isn’t related to the Squadron 2020 CMS contract, it is clear that the MLU-contract means that Saab is the favourite for the larger deal as well. And Saab doesn’t beat around the bush when it comes to this.

We want to win this.

How is Saab then planning on doing this? The talking points comes as no surprise. They include a “comprehensive industrial participation package” and the value of having a harmonised C3I system with not only the Hamina-class but with the Swedish ships of the Swedish-Finnish Naval Task Group (SFNTG) as well. The 9LV is also sporting “pretty advanced” capabilities when it comes to converting between national and international data links and “very good sensor fusion software” with a rapid response time. Saab also points out that they have worked with the ESSM before on the Halifax-class (ironically as part of a team led by Lockheed Martin Canada), a system which “can be, maybe be on the SQ2020”.

To top off the offer Saab is bringing their own sensor suite. This is centered around the Saab Lightweight Integrated Mast (completely unironically abbreviated SLIM) which will be manufactured by Saab and delivered as a complete subassembly to the yard for installation aboard the ship. As a parenthesis, Saab explained that the renders showed this particular SLIM-setup “on another ship” and not on the Pohjanmaa-class. Hmm, I wonder what ship that could be…?

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Pontus Djerf – if you need a radar, he’s got something to sell to you. Source: Own picture

The mast sports a number of sensors and communication antennas, the most important of which are the vessels main active sensors: the Sea Giraffe 4A FF (Fixed Face) and a single rotating Sea Giraffe 1X found inside. Keen readers of the blog will remember that Saab originally planned for a setup with a single rotating 4A accompanying the rotating 1X, and while the head of marketing and sales for Surface Radar Solutions Pontus Djerf (another retired commander) maintain that it is an solution that’s “often good enough”, the fixed face version is more future proof and provides additional benefits. As the project has proceeded, this has led Saab to swap out the rotating 4A to the FF. The fixed 1 x 2 meter AESA-arrays cut response times, but it does not replace the need for the 1X. Instead the two complementing radars operate in S- and X-band respectively (in addition any CEROS FCS-systems would bring a Ku-band radar to the ship) which brings a certain amount of redundancy and jamming resistance while also providing radars optimised for slightly different roles. In short, the 4A looks at the larger picture, while the 1X has shorter range but better resolution. Notably both radars sport features borrowed from Saab’s work with artillery location radars and small targets (such as UAV’s), or C-RAM and ELSS respectively.

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A wild Giraffe 100 AAA appears! Finland operate a number of older Giraffe-radars, including the Army’s LÄVA short-range air surveillance radar. Source: Own picture

These are all interesting features for the Finnish Defence Forces, because as opposed to blue water fleets, the Finnish Navy is very much a force present on the right flank of the battlefield in any potential conflict. As such, the corvettes will play an important role in the grander picture (‘joint’ is a keyword for both the Squadron 2020 and the HX-programs) when it comes to establishing situational awareness and providing medium-ranged anti-aircraft support around the most populous areas of Finland. To be able to fill the needs of higher command, a serious sensor array of both active and passive systems coupled with an effective combat management system and the datalinks to share this information. Saab seems confident that they have the solution, and that they do so at a balanced cost/performance-ratio. We will have to wait for a few months and see if the Finnish Navy agrees.

RBS15 – on the road to the Next Generation

“Psychedelic” is the word I hear someone standing next to me use to describe the room. I agree. We are standing inside what is roughly a 13 m long cube, with all the surfaces being covered with soft blue spikes of different sizes. The room is completely void of echoes, and they say that if you stand here alone, you will eventually hear your heart beating. Loudly. The only objects standing out is a large frame mounted halfway up one wall, and a pattern of blank discs mounted opposite the frame, these being the flight motion simulator and the antenna wall respectively.  We are in the anechoic chamber at ELSI, and I almost expect GLaDOS to start talking to us.

ELSI, or the Electrical Warfare Simulator, is at the hearth of Saab’s anti-ship missile program. The seeker-head of the RBS15 missile is mounted on the flight motion simulator, which moves the seeker in 3-axises as it ‘flies’. On the other end of the room the antennas sends out signals corresponding to what the seeker would see at any given moment during its course. This includes not only target signatures, environmental effects, and countermeasures in the form of false targets and active jammers. All this, coupled with the seekers simulated position and real-world direction, are then used to create the model, which is fed to the antenna wall’s signal generator which creates artificial radar returns for the seeker head. As noted, it is very much a case of the actual hardware being in the loop during testing.

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RBS15, sporting a 200 kilogram warhead to dissuade enemy ships from getting within 200 kilometers of your waters. Source: Own picture

The story of ELSI goes back to the early 90’s, when the board decided upon the investment, partly to ensure that Saab would be able to expand their share of the export market in an age of shrinking defence budgets. 1994 the site was running its first tests, and four years later it was operating at the desired level, a host of teething problems having been fixed.

Finland is no stranger to the RBS15, having operated the first generation of the missile from ship and shorebased batteries under the local designation MTO-85 since the late eighties. As such, a Finnish delegation visited ELSI early on in 1999, with the latest Finnish threat pictures. The purpose was to run a comprehensive round of tests with the MTO-85 seeker, which then provided the basis for an upgrade program launched at Saab. The upgraded seeker was then run through the same set of tests the following year. The tests can’t have gone too bad, as two years later the upgraded RBS15 SFIII, a customised RBS15 MkII, was introduced in Finnish service as the MTO 85M.

Now the RBS15 is a hot topic again for Finland. The anti-ship missile is one of the candidates for the PTO2020-program, the current acquisition to replace the MTO 85M on the Hamina-class following their ongoing MLU and in the truckmounted batteries, as well as becoming the main surface-to-surface weapon for the new Pohjanmaa-class corvettes (Squadron 2020). And Saab is confident that the RBS15 will be a prime candidate this time as well.

Saab has two distinct versions on the table. Noting that the baseline version was nearing the end of its life, Saab embarked on an ambitious upgrade program. While the step from MkI to MkII was an upgrade, the Mk3 was a radical redesign resulting in what was basically a completely new missile. Following a four-year test program it was adopted by the German Navy, and shortly after that by the Poles. The Swedish Navy is still soldiering on with the MkII, and would have been happy to adopt the Mk3. However, the Swedish Air Force had other thoughts, and had a requirement for the weapon to be lighter to allow four missiles to be carried simultaneously by the upcoming 39E Gripen. The result was the RBS15 ‘Next Generation’ (still lacking an official designation, though Mk4 wouldn’t come as a surprise), which is an upgraded Mk3 with a lighter launch weight, longer range, and generally improved performance. The weapon is contracted for introduction into Swedish service for both the Navy and the Air Force during the next decade, and Saab doesn’t mince words: “It is the most capable and advanced anti-ship missile on the market”, as was explained to us during a briefing.

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The new launch tubes for the RBS15 Mk3 are seemingly of a more complex shape than the older ones, but under the surface ease of manufacture actually means they are cheaper. Source: Own picture

The new launchers are a chapter for themselves, with the original box-like launcher having been replaced by octagonal tubes. The reason behind this is cost-savings, as the original box held the missile tilted 45° to one side, meaning that the railings holding the missile inside the box have very demanding tolerances. The newer launch tube instead holds the missile level, which is somewhat more forgiving on the structures. But it in turn leads to new questions. “The Visby-class will fit the NG, but we have already cut square holes in the side for the MkII, so in that case we will use the old launcher,” a technical sales support engineer explained. “The missile itself doesn’t really care, it can handle both positions.”

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The humble MSU (Missile switching unit) is the only major piece of hardware except the launch container that is needed aboard a vessel to be able to fire RBS15. Source: Own picture

What then is so special about the RBS15? From a Finnish standpoint, the Baltic Sea as the design environment of choice is interesting. The often poor weather combined with a cluttered archipelago and lots of civilian traffic makes for a challenging battlefield, and Saab is one of very few companies designing their anti-ship missiles from the outset for littoral waters as opposed to the open sea. This is also where ELSI comes into play. allowing for advanced simulations of the performance of the seeker, something which plays a key role in evaluating parameters such as ECCM and target discrimination. The weapon is also capable of performing the land-attack role against ‘soft’ targets, though it is not optimised for the role in the same way as ‘true’ land-attack cruise missiles.

The ships we are firing against are not that keen on being hit.

The flight path of the missile is guided through a number of pre-set 3D waypoints, and the missile then navigates using both GPS and inertial navigation to make sure it hits all waypoints on time. Timing is key for features such as simultaneous time-on-target, a default feature for the RBS15, and as such the missile will throttle up and down in flight as needed to hit all waypoints on the exact time given. The exact height of the sea-skimming part of the trajectory also varies according to sea state, with larger waves naturally forcing the missile to fly at higher altitude. And in case the missile misses its target, it will swing around and do a reattack. If no target is found at all, it will eventually head off to a pre-set destruction point, which can be altered by the operator to make sure the missile doesn’t fly off and self-destruct over the nearest town.

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Saab’s technology demonstrator 39-7 displaying the capability to carry two RBS15 under each wing, giving a four-ship of Gripen E an almost unrivalled firepower against enemy shipping. A full salvo will be devastating against enemy warships, but also comes at a hefty price. Picture courtesy of Saab Ab

For PTO2020, Saab hasn’t offered a specific variant, but instead opened the shop and described the Mk3 available today and the NG available tomorrow. The systems will also be interoperable, with NG launchers able to fire Mk3 and Mk3 launchers able (after a software update) to launch NG missiles. Customisation, as has been the case with the earlier Finnish versions, is also an option, but Saab notes that less and less countries are willing to pay the premium of having a customised missile. From a Finnish perspective, the supply chain is interesting. Diehl in Germany handles final assembly, with Saab building many major subassemblies and handling much of the development work and testing in Linköping. However, a new location on the map is Saab’s brand new technology centre, the STC, in Tampere, which is heavily involved in the electronic warfare side of the technology for the RBS15 NG.

The first draft of the text and pictures has been provided to Saab for screening to ensure that no classified, export controlled, or company confidential information is included.

Ballistic Missile Defence for Pohjanmaa?

As was noted earlier Finland has requested the export of quad-packed ESSM surface-to-air missiles for fitting in the Mk 41 vertical launch system (VLS). In itself the request was rather unsurprising, but I did find it odd that the Navy was asking about the canister designed for the Mk 41 and not the dedicated Mk 56 ESSM VLS.

Operation Iraqi Freedom is the multi-national coalition effort to liberate the Iraqi people, eliminate IraqÕs weapons of mass destruction, and end the regime of Saddam Hussein.
Mk 41 Strike length launchers in action, as the destroyer USS Donald Cook (DDG 75) fires a TLAM cruise missile against Iraqi targets in 2003. Source: US Navy via Wikimedia Commons

This week a key part of the answer was revealed, as the DCSA report for the Mk 41’s themselves was released. The Finnish request is for four 8-cell Mk 41, of the full-long ‘Strike length’ version. This is the same as carried by US Navy (and Japanese) destroyers and cruisers, as well as by a number of NATO frigates. The options for the strike length launcher include a large variety of US-built surface-to-air missiles, as well as the TLAM (Tomahawk) long-range cruise missile and the VL-ASROC anti-submarine weapon (a rocket which carries a parachute-retarded anti-submarine torpedo out to a considerable range). The downside is the size. To fit the large missiles, the cells are 7.6 m long. The logical choice if one want to fit Mk 41 solely for use with ESSM’s into a corvette is the 5.2 m Self-defense module. In between the two is the 6.7 m Tactical length cells, which add the SM-2 long-range SAM and the ASROC, but is unable to fit the TLAM or the SM-6/SM-3/SM-2 Blk IV (SM-2 with a booster). The SM-2 Blk IV and SM-3 are able to target ballistic missiles, while the SM-6 is a longer-range missile against airborne targets.

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Concept render showing the key combat systems of the vessel. Note the placement of the surface-to-air missiles. Source: Finnish MoD

Now, as late as last week I said in a discussion that it is not possible to fit the Strike length cells on the Pohjanmaa-class, as they are too long for a corvette. In all renders so far the VLS cells have been fitted in front of the superstructure, on deck level. Considering the low draft of the Pohjanmaa-class corvettes, just over 3 meters, it is doubtful whether the cells can be fitted within the confines of the bow. However, if the single cell is mounted along the centreline as opposed to across it, and if it gets a stepped platform a’la Type 26, it just might be doable (or a reshuffle with the Mk 41’s moving into the superstructure and the SSM’s moving to the foredeck/mission bay/further forward/aft/somewhere else).

So why would the Navy be interested in a cell that is two sizes larger than the missile they are planning on pairing it with? The answer is likely that they want to keep all options open. While I very much doubt that the ASROC would fit Finnish doctrine, the TLAM could open up new possibilities. However, if the Defence Forces want more cruise missiles, buying more of whatever will replace the JASSM on the winner of the HX-program is likely the better option (or alternatively buying a long-range weapon for the M270 MLRS). However, the possibility to provide some measure of protection against ballistic missiles might be of interest. While it certainly would be a major undertaking, the vessels will be in service for a long time and “fitted for but not with” is a time-honored tradition when it comes to naval shipbuilding. It should be noted that all kinds of ballistic missile defences are politically highly sensitive. Analysts have noted the similarities to the acquisition of the multirole F/A-18 Hornet back in the day, where even if the fighters were capable of flying ground attack missions, political considerations meant that the capability was only taken into use at a later stage, with the MLU2 mid-life upgrade.

The strike length cells also open up the possibility to fit some interesting anti-ship missiles in the future, as both the LRASM and the JSM are currently being tested in configurations suitable for launch from the Mk 41. Being able to swap out a number of SAM’s for more anti-ship missiles might be an interesting option at some point down the road (or at least interesting enough that the Navy doesn’t want to close the door just yet).

I will admit that the latest development have taken me by surprise. However, it does seem like the Navy is serious about fitting the vessels with systems that will allow them to field firepower to rival some significantly larger vessels. The question is whether the budget will live up to the ambitions?