Simulate orbital upper-stage transport via Self-Propelled Modular Transporters (SPMT), crosswind aero moments, tower chopstick crane hoist equilibrium, hold-down pin insertion, and launch-mount umbilical alignment.
Starship presents a 50-meter cylindrical sail area with a 9-meter diameter. Even dry at ~108 metric tons, gusts over 32 knots produce over 850 kN·m of overturning moment around the SPMT transport stance or the chopstick pin clamps.
Two giant hydraulic mechanical arms lift the vehicle via hardened lifting pins positioned above the center of mass. Flap rigging angles alter wind pressure distribution, requiring dynamic cable load balancing between the carriage winches.
The Quick-Disconnect (QD) plate feeds sub-cooled liquid oxygen and liquid methane at 6,000+ kg/min. Final vertical drop onto the launch mount requires <15 mm lateral pin tolerance before hydraulic umbilical lock.
Each newly designated orbital vehicle (such as Ship 41) represents months of assembly, tile application, and cryo-proof validation in the High Bay and Mega Bay. Rolling the vehicle over 5 miles to the launch pad tests highway transport axle loads, introduces it to South Texas Gulf crosswinds, and marks the transition into full static fire testing and flight integration atop the Super Heavy booster.
The model computes real-time drag based on Rayleigh airflow equations ($F_d = \frac{1}{2}\rho v^2 C_d A$), models flap angular deflection on frontal area and center of pressure ($C_p$), derives ground support normal reactions across 32 SPMT wheel lines, and tracks shear pin insertion distance to launch mount hold-down clamps.