Warhead economics: how a $400 FPV with an RPG warhead rewrote cost-exchange math

The headline number is almost too neat: a few hundred dollars of airframe and hobby-grade electronics, mated to a shaped charge that has been in inventories for decades, routinely removing vehicles whose replacement cost runs into the millions. It is tempting to treat that as a curiosity of one conflict. We think that reading is wrong. What the FPV-with-RPG combination actually demonstrates is that the binding constraint in modern tactical combat is no longer the ability to build a precise weapon — it is the ability to build one cheaply enough that losing it does not matter. That is a procurement problem before it is a technology problem, and it is already reshaping how ministries think about armor, air defense, and the industrial base that supports both.

The mechanics are worth stating plainly, because the economics only make sense once the engineering is clear. A first-person-view drone is, at its core, a small quadcopter flown by a pilot wearing video goggles, receiving a live feed from a camera on the airframe. It is not autonomous in any meaningful sense; the human in the loop is the guidance system. That keeps the unit cost low, because it eliminates the seeker, the processor, and much of the software certification burden that dominates the price of a conventional guided missile. What remains is a frame, motors, a battery, a radio link, a camera, and a warhead. The warhead in this case is a shaped charge — the same class of munition found in rocket-propelled grenades and anti-tank guided missiles — which uses a metal liner collapsed by explosive into a high-velocity jet capable of penetrating substantial armor. Mounting one on a small drone does not require new physics. It requires a mounting bracket, a fuzing solution, and a pilot willing to fly the aircraft into the target. The result is a precision anti-armor effect delivered at a cost that is closer to a consumer electronics purchase than to a missile buy.

That cost structure is what makes the exchange ratio so lopsided. A main battle tank, an infantry fighting vehicle, or a self-propelled gun represents not just its sticker price but years of industrial lead time, a trained crew, a logistics tail, and a place in a force structure that assumes it will survive contact. When a weapon that costs less than a smartphone can credibly threaten that asset, the defender faces a choice that is uncomfortable in budget terms: spend more on protecting the vehicle, spend more on intercepting the drone, or accept losses. Each option has a different cost curve, and none of them is cheap. Armor add-on kits, active protection systems, and cage armor all add weight, cost, and maintenance burden. Counter-drone systems — radio-frequency detection, jamming, and short-range interceptors — are themselves a growth market, but they are priced against a threat that can be replaced for hundreds of dollars. That asymmetry is the real story.