How a ‘Vampire’ Could Solve the US Navy’s Drone Woes

The National Interest | Stavros Atlamazoglou

The US Navy has selected L3Harris Technologies’ “VAMPIRE” counter-drone system to protect its littoral installations from increasingly lethal unmanned aerial threats. This adaptable, low-cost weapon system fires AGR-20A Advanced Precision Kill Weapon System (APKWS) interceptors to engage incoming targets. It uses advanced sensors to spot, track, and destroy hostile platforms.

Procurement of this modular technology follows lessons from the Ukraine war and Middle Eastern conflicts, where one-way attack drones have devastated critical infrastructure. Drones now dominate modern battlefields. In the Middle East, the IRGC has deployed kamikaze drones against commercial shipping in the Strait of Hormuz, highlighting the vulnerability of naval logistics. To counter this, the Navy is deploying containerized and turreted VAMPIRE variants, including the CASKET and BAT configurations, to safeguard forward operating bases and maritime assets from adversary reconnaissance and strike operations. These systems will be ruggedized to withstand harsh maritime environments.

Comment

The integration of the VAMPIRE system directly addresses the severe cost-imposition asymmetry currently plaguing maritime air defence. Deploying multi-million-dollar interceptors like the RIM-162 ESSM against low-cost uncrewed aerial vehicles creates an unsustainable financial burden during prolonged engagements. By utilising the laser-guided AGR-20A APKWS, naval forces can neutralise low-altitude aerial threats at a fraction of the cost of traditional surface-to-air missiles. This shift preserves sophisticated Standard Missile variants for high-end peer conflicts in theatres like the Western Pacific.

The economic viability of this capability relies on the conversion mechanism of the AGR-20A APKWS. This system transforms standard 70mm Hydra rockets into precision-guided munitions using a mid-body guidance section. Consequently, the US Navy leverages existing Hydra stockpiles to bypass the industrial bottlenecks that slow the production of dedicated air-defence systems like the Phalanx Block 1B.

Strategic Question for Discussion

If the US Navy widely deploys the VAMPIRE system across littoral installations, how does the reliance on the laser-guided AGR-20A APKWS affect operational readiness in degraded maritime environments where electro-optical tracking is compromised?

The trajectory indicates that reliance on laser guidance will restrict VAMPIRE effectiveness during heavy fog, rain, or aerosol-screened environments common to littoral zones. Consequently, the US Navy is expected to pair these kinetic interceptors with complementary electronic warfare systems. This dual-layered approach ensures that the AGR-20A APKWS remains reserved for clear-visibility engagements while maintaining a continuous defensive envelope.

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