Structural Parameters 
Payload Mass (no structure)  
kg 
Mass Ratio  
fuel:(payload+structure) 
Spacecraft Length  
m Used only for hull thickness 
Spacecraft Beam  
m Used only for hull thickness 
Spacecraft Volume  
m^{3} 
Maximum Acceleration  
Gs 
Fuel Density  
kg/m^{3} 
Hull Materials using Ultimate Strength


Hull Materials using Yield Strength


Hull Material Toughness  

Density of Hull Material  
kg/m^{3} 
Epsilon (error tolerance in calculations)  

Method 
With Buckling
(may not
scale well for payloads > 10 tons)
Only Vsr (may
scale better
for payloads > 10 tons)

Options 
Assume fuel is
included
with payload mass.
Iteratively
calculate fuel from total mass (Payload + Structure)

