Compare rockets
Put up to six launch vehicles side by side: drawn to the same scale, then size, performance, cost and track record. The best figure in each row is highlighted. Share the address to share the comparison.
| Figure | Firefly Alpha Block 2 Firefly ✕ |
|---|---|
| Size | |
| Height | 31.6 m |
| Diameter | 1.8 m |
| Stages | 2 |
| Launch mass | 54 t |
| Performance | |
| Thrust at liftoff | 736 kN |
| Thrust-to-weight | 1.39 |
| Payload to LEO | 1,030 kg |
| Cost | |
| Launch cost | ~$15M |
| Cost per kg to LEO | ~$14,563 |
| Track record | |
| Launches | 0 |
| Successes | 0 |
| Failures | 0 |
| Success streak | 0 |
| Family launches | 7 |
| Upcoming launches | 6 |
Figures from Launch Library 2. A dash means it has no value for that rocket yet; thrust-to-weight and cost per kilogram are worked out from its figures. Launch costs are rough public estimates. The drawings are to scale but simplified: boosters and fairings follow rounded public figures.