Interceptor Burn Rate & Depletion Analysis
Coalition missile defense interceptor stocks are being consumed at rates that far exceed peacetime production capacity. Since Operation Epic Fury began on 27 February 2026, the war has run through a six-week full-intensity phase, a ceasefire and renewed strike rounds in July–September; averaged over the whole war, burn rates still outrun production, and sourced counts put THAAD at roughly 270 of 452 remaining and Patriot interceptors under 830 of 2,330.
Interceptor Depletion Table
Inventory at the start of the war (27 February 2026), daily burn rates, days from war start until depletion at that rate, annual production capacity, unit cost, and the daily production gap (burn minus daily production). THAAD and Patriot burn rates are whole-war averages back-solved from sourced remaining stock; the other systems still use early-March estimates.
| System | War-start inventory | Burn Rate | Depletion (from war start) | Annual Prod | Unit Cost | Daily Gap |
|---|---|---|---|---|---|---|
| THAAD | 452 | 1.1/day | 410 days | 96/yr | $12.7M | 0.8/day |
| SM-3 (all) | 414 | 12/day | 34 days | 66/yr | $27.9M | 11.8/day |
| PAC-3 MSE | 2,330 | 8.56/day | 272 days | 600/yr | $4.2M | 6.9/day |
| Arrow 3 | 65 | 4/day | 16 days | 30/yr | $3.0M | 3.9/day |
| Arrow 2 | 85 | 1.5/day | 56 days | 25/yr | $3.0M | 1.4/day |
| SM-6 | 750 | 6/day | 125 days | 165/yr | $4.9M | 5.5/day |
| Iron Dome | 1,800 | 60/day | 30 days | 500/yr | $80K | 58.6/day |
Key Findings
- THAAD: 452 interceptors at war start; roughly 270 remained by mid-September (CSIS). At the whole-war average of 1.1/day that is 410 days from war start to depletion. Lockheed Martin produces only 96/year (target: 400/yr by 2029). At $12.7M per round, THAAD consumption costs $14M/day.
- SM-3: 414 total SM-3 (Block IIA + IB combined). At 12/day Epic Fury burn, depletion in 34 days. At $27.9M per round, the most expensive interceptor in the fleet.
- Patriot (PAC-3 row): 2,330 Patriot interceptors of all variants at war start, fewer than 830 left (CFR/CSIS); whole-war average 8.56/day. $9.8B contract placed Sep 2025 to accelerate production to 2,000/yr.
- Arrow-3: Israel's upper-tier BMD with only 65 interceptors. At 4/day, depletion in 16 days. Production tripled after WSJ report of stocks "running low."
Production vs Consumption
The core problem is structural: interceptor production was sized for peacetime deterrence, not sustained high-intensity combat. Even with emergency production ramps, it takes 18–24 months to expand manufacturing lines. The daily production gap column above shows how many interceptors are consumed per day net of production — all systems show negative trends during active operations.
Frequently Asked Questions
What is the THAAD interceptor burn rate?
During Operation Epic Fury, THAAD interceptors are consumed at approximately 1.1/day. With 452 at war start (roughly 270 left by mid-September) and annual production of only 96, this whole-war average leads to depletion approximately 410 days after the war began, without production replenishment.
How fast are SM-3 interceptors being used?
SM-3 interceptors (Block IIA + IB) are consumed at 12/day during Epic Fury operations. Total inventory is 414 units. At $27.9M per round, SM-3 is the most expensive interceptor system in the coalition fleet.
Can interceptor production keep up with consumption?
No. All major interceptor systems show a daily production gap during sustained combat operations. Peacetime production was designed for deterrence stockpiling, not active consumption. Emergency contracts have been placed but manufacturing ramp-up takes 18-24 months.
Which interceptor system is most at risk?
Arrow-3 is most critical with only 65 interceptors and 16 days to depletion at Epic Fury rates. THAAD follows with 410 days. Patriot stocks are down to under 830 of 2,330 despite being the largest inventory.
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