ISC Defence Intelligence title card. Eurosatory 2026 open-source technical assessment, 20 June 2026.

Nammo arms a loitering drone with a 66 mm shaped-charge warhead: the N7 modular strike system at Eurosatory 2026

Technical Summary

At Eurosatory 2026, held in Paris from 15 to 19 June, the Norwegian energetics and ammunition manufacturer Nammo unveiled a modular strike system that pairs a 66 mm N7 High-Explosive Anti-Tank (HEAT) warhead with the Orqa MRM2-10AI uncrewed aerial vehicle (UAV) built by the Croatian firm Orqa. The configuration packages a precision anti-armour effect onto a low-cost, attritable airframe, an approach that reporting from the exhibition states Ukrainian units have already fielded in six-figure quantities.

The N7 belongs to Nammo's modular N-series warhead family, which also includes the 40 mm N4. Open sources describe the N7 as a copper-cone shaped-charge warhead weighing approximately 1.5 kg and credited with perforating more than 450 mm of Rolled Homogeneous Armour (RHA). It mates to a UAS-agnostic Nammo fuze, roughly 100 mm long, 40 mm wide and 80 g, that the operator safes and arms with a single twist and that offers both a one-way standalone mode and an air-vehicle-powered mode allowing recovery of the UAV when no target is engaged. One source variance is noted and carried: material from SOF Week 2025 lists the N7 as a 70 mm nature, whereas Eurosatory 2026 reporting cites 66 mm. Both figures are recorded here pending a primary specification.

Open-source reporting credits the 66 mm N7 shaped-charge warhead with perforating more than 450 mm of Rolled Homogeneous Armour, a penetration consistent with the established rule that a competent shaped charge defeats five to eight cone diameters. ISC technical assessment, Eurosatory 2026

Analysis of Effects

The N7 functions by the shaped-charge (Munroe) effect: detonation collapses the copper liner into a hypervelocity jet that perforates armour by hydrodynamic penetration rather than by kinetic impact. A figure above 450 mm RHA from a nominal 66 mm charge is consistent with the established benchmark that a competent shaped charge defeats five to eight cone diameters; 66 mm at roughly seven diameters yields about 460 mm, so the claim is technically plausible rather than exceptional. Footage shown at the exhibition reportedly depicted the warhead striking a Multiple Launch Rocket System (MLRS), with the jet initiating the rocket motor propellant and producing a sympathetic reaction far larger than the warhead's own charge, a reminder that terminal effect against a loaded target is governed by what the jet ignites, not by the warhead alone.

The Orqa MRM2-10AI carrier offers fibre-optic, digital radio or analogue control, a redundancy set chosen to defeat the electronic-warfare jamming that now dominates the contested airspace over Ukraine. A tethered fibre-optic link is immune to radio jamming and radiates no detectable signal, at the cost of range bounded by spool length. Net Explosive Quantity (NEQ) and the explosive fill type are not disclosed in open sources and are recorded as data gaps; the warhead mass of about 1.5 kg places its energetic charge in the same broad class as a shoulder-fired 66 mm anti-tank rocket rather than a recoilless-gun or guided-missile warhead.

Personnel and Safety Considerations

A drone-delivered HEAT warhead that fails to function on impact becomes a high-hazard Unexploded Ordnance (UXO) item: a shaped charge with an armed impact fuze, lying at an unpredictable orientation, and potentially sensitive to disturbance. The Nammo fuze's one-way mode, once armed, cannot be re-safed, which removes any simple render-safe by reversion and places a failed round firmly in the Explosive Ordnance Disposal (EOD) domain. In a United Kingdom storage and transport context the system would fall under Defence Safety Authority regulation DSA 03.OME (Ordnance, Munitions and Explosives), with a Hazard Division (HD) and Compatibility Group (CG) assigned against the as-packaged configuration. Neither HD nor CG is published for this system, and assignment would depend on the fill, the fuze train and the shipping state.

Data Gaps

Open sources do not disclose the N7 explosive fill type or its NEQ; the definitive calibre, given the 66 mm and 70 mm figures in circulation; the HD and CG of the packaged munition; the fuze designation and whether a self-neutralisation or self-destruct function is fitted; the dud or failure rate observed in service; or the unit cost. Each gap is material to a safety case and to any comparative assessment against competing loitering anti-armour munitions. Figures above should be treated as manufacturer-attributable claims pending a primary specification.

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.