An attritable aircraft is one designed to occupy the space between a reusable platform (built to survive and return) and a fully expendable munition (built to be destroyed on first use). The concept accepts that some missions will result in aircraft loss and prices the airframe low enough that this attrition is economically sustainable.
The U.S. Air Force’s Collaborative Combat Aircraft (CCA) program defines attritability as a unit cost low enough that “the loss of the aircraft in combat is militarily and economically acceptable.” In practice, this has been interpreted as a flyaway cost of 80–120 million for an F-35) but far more expensive than fully expendable airframes ($10,000–55,000). The XQ-58A Valkyrie and the Anduril Fury are representative attritable concepts.
The design implications are intermediate between conventional and expendable:
- Safety factors are reduced but not eliminated — attritable aircraft are expected to fly 10–100 missions, not one, so fatigue matters, just less than for a 20,000-hour platform.
- Materials can be automotive-grade composites and commercial electronics rather than aerospace-certified components, but still need more durability than the foam and plywood acceptable in expendable drones.
- Recovery systems are included (landing gear, typically), unlike fully expendable platforms.
- Redundancy is selective — single-string avionics may be acceptable, but the engine and flight control actuators may warrant some redundancy given the multi-mission lifecycle.
The attritable concept reflects the same underlying economic pressure driving expendable drones — that the cost of traditional military aircraft has grown faster than defense budgets — but occupies a different point on the cost-capability spectrum. Attritable platforms are capable enough to fly alongside crewed fighters as autonomous wingmen; expendable drones like the Shahed-136 or LUCAS are cheap enough to treat as ammunition.
Related terms
- Loitering Munition — a related category of expendable or semi-expendable aerial weapon
- Safety Factor — the structural design parameter that varies across the reusable-attritable-expendable spectrum
- Fatigue — the failure mode that distinguishes attritable (relevant) from expendable (irrelevant) design