SpaceShipTwo vs Soyuz FG
Side-by-side comparison across specs, pricing, and overall score — every value traced to a source.
Verdict: Soyuz FG ranks highest overall (#9) with a score of 51.0.
The best choice still depends on which specs matter for your workload — per-metric winners are marked below.
What the numbers hide
Computed from the published values below — no estimates, no generated claims.
Fragile verdict
The overall winner flips to SpaceShipTwo if Successful Launches is weighted at 45% (it counts for 31% today). If successful launches drives your decision, the ranking above may not be your ranking.
Fragile verdict
The overall winner flips to SpaceShipTwo if Diameter is weighted at 25% (it counts for 6% today). If diameter drives your decision, the ranking above may not be your ranking.
Real tradeoff
SpaceShipTwo clearly beats Soyuz FG on Successful Launches but clearly loses on LEO Capacity — this pair is a priorities question, not a quality question.
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| Metric | SpaceShipTwoVirgin Galactic | Soyuz FGProgress Rocket Space Center |
|---|---|---|
| Overall OptiSift Score | 16.2#19 | 51.0#9 |
| LEO Capacity | 0 | 6,450 |
| Successful Launches | 62 | 59 |
| Failed Launches | 5 | 1 |
| Launch Mass | 9 | 305 |
| Length | 18 | 49.5 |
| Diameter | 8.2 | 3 |
| Reusable | Yes | No |