Edelbaum low-thrust delta-v

Combined plane change and circular-to-circular transfer. Not a spiral-to-escape Δv.

SIDUS educational calculator. Category propulsion. Tags: delta-v, mission-design, propulsion. Pure SI. Not flight software.

Formula

Δv = √(v₁² + v₂² − 2 v₁ v₂ cos(π Δi / 2))

Edelbaum circular transfer, not spiral-escape

Primary sources

• Fundamentals of Astrodynamics and Applications (David A. Vallado): Standard reference for two-body, Lambert, maneuvers, and J2. Equations implemented independently in SIDUS.
• Orbital Mechanics for Engineering Students (Howard D. Curtis): Textbook derivations for Hohmann, vis-viva, rocket equation, elements.

How do AI agents use this tool?

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