NASA-SP-8007 BUCKLING STANDARD • THIN-SHELL STABILITY HUD • GN2 TELEMETRY

Rocket Booster Tank Pressurization & Aero-Load Calculator

Simulate internal nitrogen ullage pressure, hoop stress stabilization, highway crosswind aerodynamic bending moments, and monocoque skin buckling safety factors for 40m to 75m orbital rocket stages.

Booster Geometry & Flight Parameters

Configure rocket stage length, diameter, ullage pressure, and wind conditions.

Booster Overall Length: 70.0 m

40.0m (Electron/Neutron) 70.0m (Falcon 9 Core) 75.0m (New Glenn / Starship)

Outer Tank Diameter: 3.7 m

2.5m (Small Core) 3.7m (Standard 12ft) 9.0m (Super Heavy)

Internal GN2 Ullage Pressure: 2.20 bar (31.9 psi)

0.8 bar (Unpressurized) 2.2 bar (Transit Nominal) 3.5 bar (PRV Relief)

Highway Convoy Speed: 25 mph

10 mph (Town Turn) 25 mph (Escorted Limit) 45 mph (Interstate Move)

Highway Crosswind Velocity: 18 mph

5 mph (Calm) 18 mph (Moderate Gust) 50 mph (Gale Storm)

Structural Telemetry

Monocoque Shell Stability HUD

PASS • STABLE HOOP TENSION

Internal Hoop Stress (σ_h)

135.7 MPa

Tensile Pre-Stress

Aero Bending Moment

412 kNm

Crosswind Distributed Load

Skin Buckling Margin

2.45x SF

NASA SP-8007 Factor

Critical Buckling Resistance Envelope: 78.5% Stable Capacity

1.0x (Buckling Collapse) 1.5x (FAA Safety Buffer) 2.5x+ (Optimal Rigidity)

• AEROSPACE STRUCTURAL DISPATCH ADVISORY:

Internal GN2 ullage pressure maintains positive hoop tension throughout tank barrels. Bending stress from 18 mph crosswinds is fully mitigated by internal gas pre-stress. Convoy authorized for 25 mph transit speed.

AIAA S-080 / NASA-SP-8007 • Launch Vehicle Transport Std Exspeedite Spacecraft Telemetry

Save Calculation & Request Transport FEA

Submit this structural tank model to Exspeedite Commercial Space Transport Engineering.