| KC-46A | A330 MRTT+ | Medium BWB | Medium Reduced Signature | CTA | |
|---|---|---|---|---|---|
| Empty weight (lb) | 206,000 | 285,500 | 155,000 | 100,000 | 50,000 |
| Fuel capacity (lb) | 212,000 | 245,000 | 300,000 | 125,000 | 75,000 |
| Fuel fraction | 51% | 46% | 66% | 56% | 60% |
| Required C-17 parking spots | 0.84 | 1.37 | 0.57 | 0.40 | 0.32 |
| Research, Development, Test, and Evaluation (RDTE) cost range (billions) | $1–3 | $1–3 | $6–8 | $10–15 | $4.5–7 |
| Average Procurement Unit Cost (APUC) (millions) | $310 | $315 | $250 | $295 | $80 |
| Total RDTE and procurement program cost (billions) | $79.50 | $80.75 | $69.50 | $86.22 | $25.75 |
| Program Average Unit Cost (PAUC) (millions) | $318 | $323 | $278 | $345 | $103 |