Is this flight software?

No. SIDUS models are educational reimplementations. Cross-check before any flight decision.

Sutton-Graves heat flux

Stagnation-point convective heat flux q̇ ∝ √(ρ/R_n) v³: entry heating order of magnitude.

SIDUS educational calculator. Category utilities. Tags: aero, entry, mission-design, structures, utilities. Pure SI. Not flight software.

q̇ = k √(ρ/R_n) v³

Sutton-Graves entry heat flux

NASA Glenn Research Center: Beginner’s Guide to Aeronautics (NASA GRC): Ideal rocket equation, specific impulse, thrust equation, dynamic pressure education pages.
AeroVia Aerospace Tools (AeroVia (public calculators)): Public catalog of ISA, dynamic pressure, launch azimuth, RF link, SSO-class tools (domain demand reference).
Fundamentals of Astrodynamics and Applications (David A. Vallado): Standard reference for two-body, Lambert, maneuvers, and J2. Equations implemented independently in SIDUS.

Read /llms.txt or call https://sidus.tools/api/mcp. Open the interactive page for live SI inputs.