SE Thruster & TWR Calculator
Enter your ship mass, environment, and thruster configuration to calculate thrust-to-weight ratio (TWR), total power draw, and the minimum number of thrusters needed for liftoff.
Ship & Environment
Check in-game via Info panel
Thrust-to-Weight Ratio
52.84
Can lift off
Total Thrust
25,920
kN effective
Power Draw
67.20
MW total
Minimum thrusters for TWR > 1.0: 1
Atmospheric effectiveness: 100%(atmospheric thrusters are useless in space)
Thruster Data Reference — Large Grid
| Type | Thrust (kN) | Power (MW) | Best Environment |
|---|---|---|---|
| Ion — Small | 345.6 | 3.360 | Space only |
| Ion — Large | 4,320.0 | 33.600 | Space only |
| Atmospheric — Small | 648.0 | 16.800 | Planet only |
| Atmospheric — Large | 6,480.0 | 16.800 | Planet only |
| Hydrogen — Small | 1,080.0 | 10.800 | Everywhere |
| Hydrogen — Large | 7,200.0 | 16.000 | Everywhere |
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