France Unveils 'Rampart' Missile Shield: A Cost-Effective Defense Against Drone Swarms for Warships

France has introduced a new, cost-effective missile system named Rampart, designed to protect both civilian and military installations from the threat of drone swarms. Developed by Naval Group, Rampart establishes a defensive perimeter around warships by utilizing a high volume of low-cost, laser-guided rockets. This approach contrasts with the use of expensive interceptors, such as Patriot missiles, which were rapidly depleted during the Iran war.

The system has successfully completed sea trials in the Mediterranean, including participation in a French Navy counter-drone exercise near Toulon. Stephan Meunier, a former French navy commander involved in the project, stated, "It is designed to build a defensive shield around a warship in drone warfare."

Naval Group anticipates producing up to 10,000 Rampart systems by 2028. During testing, the system demonstrated its capability by neutralizing an aerial drone and unguided rockets targeting surface vessels. The Rampart system fires laser-guided 68mm rockets equipped with proximity fuses, offering a range of up to 6 kilometers. The launcher comprises four modules, each holding 20 projectiles, allowing for a maximum capacity of 80 rockets. It can be armed with a mix of munitions, including surface-to-air and surface-to-surface missiles, decoys, or precision-guided munitions. An experienced crew can reportedly reload a 20-round module in approximately 10 minutes.

Weighing around four tonnes, the Rampart system is suitable for integration onto smaller warships, such as corvettes. The system's effectiveness is highlighted by its 'cost-to-kill' ratio. In contrast to the Iran war, where Western forces expended costly interceptors against inexpensive drones, Rampart offers a more economical solution. For instance, Patriot missiles, costing over $4 million each, were used against Shahed-136 drones priced at approximately $35,000, a cost comparable to a guided 68mm rocket. "The cost-to-kill ratio is very effective and it can tackle a drone swarm attack," Meunier noted, adding, "Rockets are cheaper and more efficient."

The growing threat of drone attacks in regions like the Arabian Gulf and Red Sea, potentially launched from Iran or by the Houthi rebels, makes naval protection crucial. Naval ships equipped with Rampart could provide vital close-in defense. Beyond maritime applications, Rampart can also be deployed as a ground-based system to safeguard airports, military bases, and civilian areas. "This system would provide good defences for fixed installations such as airports and to protect urban centres or military camps in the Gulf as well as on board warships," Meunier commented.

Naval Group has also developed a single Rampart module for its Sirenha unmanned surface vessel, enabling an autonomous drone boat to enhance defensive capabilities. Furthermore, the company is collaborating with Emirates' defense group Edge on trials for the UAE-developed SkyKnight air-defence missile, with land trials preceding maritime testing next year. SkyKnight boasts a range of up to 10 kilometers against aerial threats, potentially offering Rampart a more advanced missile option alongside its 68mm rockets. There is also a possibility that Rampart could be deployed in Ukraine, where air defense systems are critically needed against daily Russian drone and missile attacks. A successful deployment could significantly advance the low-cost defense of critical military and civilian sites against drone saturation attacks.