Rocket & Spacecraft Simulator
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Rocket Stage Calculator
Stage 1 (Booster)
Isp (s, sea-level):
Mass Ratio (m₀/m_f):
Delta-V Loss (m/s):
Thrust (kN):
Mass (tons):
Stage 2 (Orbital)
Isp (s, vacuum):
Mass Ratio (m₀/m_f):
Delta-V Loss (m/s):
Thrust (kN):
Mass (tons):
Calculate Stage Results
Performance Metrics
Enter overall mass (tons):
Enter thrust (kN):
Calculate TWR
Recovery Terminal Velocity
Mass (tons):
Drag Coefficient (Cd):
Reference Area (m²):
Atmospheric Density (kg/m³):
Calculate Terminal Velocity
Atmospheric & Fairing Calculations
Atmospheric Density (kg/m³):
Velocity (m/s):
Calculate Dynamic Pressure
Fairing Diameter (m):
Calculate Fairing Load
Angle Calculations
Horizontal Velocity (m/s):
Vertical Velocity (m/s):
Lateral Velocity (m/s):
Calculate Angles
Mission Delta-V Calculations
LEO Insertion Δv (m/s):
Trans-Lunar Injection Δv (m/s):
Lunar Surface Takeoff Δv (m/s):
Planetary Escape Δv (m/s):
Fast Transfer Δv (m/s):
Calculate Mission Δv
Overall Simulation Summary
Calculate All