RCH 155 wheeled howitzer on trials. Photo: Rheinmetall AG press material, released with the company announcement of 31 July 2026 and reproduced for editorial reporting on that announcement. No endorsement implied.

The Gun Comes From Telford: Rheinmetall Books the 72 Elevating Masses for Britain’s RCH 155

Rheinmetall confirmed on 31 July 2026 that it holds the supply contract for the weapon systems fitted to the British Army’s 72 RCH 155 wheeled howitzers. The award was made in the second quarter of 2026 and sits in the low three-digit million euro range. It covers 72 elevating masses and on-board tools, manufactured at Telford, with deliveries running from May 2028 to June 2031.

Technical Summary

Rheinmetall AG announced on 31 July 2026 that it had been awarded the supply contract for the weapon systems on the British Army’s RCH 155 wheeled howitzer fleet. The award was placed in the second quarter of 2026 and the company puts its value in the low three-digit million euro range. The scope is 72 elevating masses and the associated on-board tools, plus support in preparing training material and technical documentation. Deliveries are scheduled between May 2028 and June 2031, and manufacture takes place at Rheinmetall’s new large calibre gun facility in Telford, Shropshire. The company states that both Germany and the United Kingdom are currently qualifying the 155 mm L/52 RC (remote controlled) weapon system, and that supply follows verification.

The elevating mass is the part of an artillery piece that matters most to an ammunition technician. It is the assembly that recoils and elevates as a unit: the 155 mm L/52 tube, the muzzle brake, the breech mechanism and obturation, the recoil and recuperator system, the cradle and the trunnions. Everything the propelling charge does happens inside it. British contract documentation calls the same assembly the height adjustable mass, and defines it in exactly those terms. The RCH 155 mounts this ordnance in an unmanned, fully automated turret derived from the Panzerhaubitze 2000 weapon system, carried on the GTK BOXER (Gepanzertes Transport-Kraftfahrzeug, armoured transport vehicle) drive module. ARTEC GmbH, the joint venture between Rheinmetall and KNDS Deutschland, holds the prime contract for the vehicle; the two shareholders act as subcontractors to it. That structure is why a separate Rheinmetall supply contract exists at all, and why it was announced eleven weeks after the platform order.

Seventy-two elevating masses, made in Telford, delivered from May 2028 to June 2031. The platform contract was signed in May. The ordnance contract, which decides whether any of it actually fires, was placed in the quarter that followed. ISC assessment of the Rheinmetall supply contract, 31 July 2026

Analysis of Effects

Read against the platform award, this is the ordnance half of a programme the ISC has been tracking since the spring. In May 2026 the United Kingdom placed an order for 72 RCH 155 systems worth close to £1 billion through the Organisation for Joint Armament Cooperation, covered in the Trinity House procurement analysis, with QinetiQ picking up an £18 million test and evaluation package days later, covered in the mobile fires test contract assessment. Neither of those contracts buys a gun. This one does. The qualification of the 155 mm L/52 RC weapon system is the gate that both Germany and the United Kingdom now sit behind, and Rheinmetall has been explicit that supply follows verification rather than running in parallel with it. A qualification slip therefore propagates straight into a delivery window that starts in May 2028, which is the same year the Ministry of Defence has publicly committed to first deliveries.

There is a prior tranche that complicates the arithmetic. In March 2026 the Organisation for Joint Armament Cooperation placed a £53 million order with ARTEC GmbH for 37 weapon systems, described in the British paperwork as height adjustable masses and defined as the 155 mm barrel, muzzle brake, breech mechanism, recoil system and trunnions. Roughly £30 million of that sum went into the Telford Gun Hall itself rather than into hardware, funding the large calibre barrel line and about 100 skilled posts. Whether the 72 masses announced on 31 July subsume those 37 or sit on top of them has not been stated by either party, and the answer changes what the low three-digit million euro figure actually buys per unit. That question is recorded below as a data gap rather than resolved by inference.

The performance numbers need care. Open manufacturer data for the RCH 155 gives more than eight rounds per minute, an on-board stowage of 30 fuzed projectiles and 144 modular charges, and a combat weight under 40 tonnes. Range is where the loose reporting starts. Roughly 30 km applies to a standard high explosive nature, about 40 km with a base bleed unit, and about 54 km with a velocity-enhanced long-range artillery projectile. The 70 km figure that has attached itself to the British order in general coverage is a guided ammunition figure, achievable with a Vulcano-class course-corrected round, not a property of the gun firing conventional stores. The barrel itself is declared compatible with the Joint Ballistics Memorandum of Understanding, which is the practical reason a British gun can be expected to digest allied 155 mm charge systems at all. That interchangeability is thinner in practice than the paperwork suggests, a point set out in the ISC assessment of the NATO 155 mm interchangeability gap.

Programme Lineage

Personnel and Safety Considerations

An unmanned turret changes the drills, not the hazard. Two crew sit in an armoured cab, physically separated from a magazine holding 30 fuzed projectiles and 144 modular charges, and the automation handles ramming and charge loading. That removes the crew from the gun bay during normal firing, which is a real gain. It also means that a misfire, a hangfire or a jammed charge element cannot be dealt with by a number in the bay looking at it. The immediate action becomes a remote sequence followed by a controlled approach under a waiting time, and the training material and technical documentation named in this contract are where those procedures live. Hazard classification for the natures the British Army will actually fire is not in the public record. Modular charge systems in this class are typically assigned Hazard Division 1.3, Compatibility Group C, and 155 mm high explosive projectiles fall in Hazard Division 1.2 or 1.1 depending on fill and packaging state, but the UK codification for this platform has not been published and is recorded below as a data gap. Storage and transport of the natures, and the licensing of the sites that will hold them, sit under DSA 03.OME, which replaced the withdrawn JSP 482. The packaging end of that chain is a live British Army problem in its own right, examined in the ISC piece on artillery ammunition packaging.

Data Gaps

Contract value is given only as a range, so unit cost per elevating mass cannot be derived. Neither party has said whether the 72 masses announced on 31 July include the 37 ordered in March 2026 or are additional to them. The specific qualification standard and test schedule for the 155 mm L/52 RC weapon system are not published, nor is the authority signing the qualification off for the United Kingdom. UK hazard division and compatibility group codification for the projectile and charge natures is not in the public record. The barrel life in equivalent full charges, the wear management regime and the number of spare tubes in the support package are unstated. Whether the on-board tools item includes bore evacuator, breech and chamber gauging equipment is unstated. The split of work between Telford and Rheinmetall’s German gun facilities, and the local content percentage attributable to the Telford line, are not broken out. Finally, no fuze or charge system designations have been announced for the British fleet.

Corrections & updates welcome. If you hold open-source data that refines or corrects any parameter in this article, please contact [email protected] citing the specific claim and your source. Verified corrections will be incorporated and credited in the revision history. AI-assisted technical assessment based on open-source material. Not a formal intelligence product.