Indian Navy Tests Drone Reloading of Warship VLS at Sea

India’s Navy explores drone technology to reload vertical launch systems (VLS) at sea, addressing rapid surface-to-air missile depletion amid rising aerial threats. This initiative aims to enhance warship endurance and responsiveness against low-cost drone and missile attacks.

The Indian Navy has initiated a project titled ‘Rearming by Drone (REARM-D) at Sea’ to develop multi-rotor drones capable of reloading surface-to-air missiles (SAMs) into vertical launch system (VLS) cells on warships while underway. This capability seeks to overcome the current limitation where warships must return to port or rely on supply ships for missile replenishment.

The project responds to the tactical challenge posed by rapid SAM depletion when countering swarms of low-cost drones and missile threats. As modern naval warfare increasingly involves saturation attacks, sustaining missile readiness at sea is critical for maintaining air defense integrity.

Strategically, drone-enabled reloading could significantly increase operational endurance for Indian Navy surface combatants, reducing vulnerability windows and enhancing sustained combat capability in the Indo-Pacific theater. This reflects India’s broader push to integrate autonomous technologies into naval logistics and sustainment.

Technical developments focus on designing drones that can operate safely in complex maritime environments, handle heavy missile canisters with precision, and dock with VLS cells aboard moving vessels. The drones must also exhibit high reliability and resistance to harsh conditions at sea.

If successful, REARM-D could set a new standard for at-sea logistics and resupply, potentially influencing naval practices worldwide. This innovation may also prompt competitors and allies to accelerate their own maritime autonomous logistics programs, altering naval operational doctrines.