The engineering trade-offs required to power interstellar travel

Kerbal Space Program - Interstellar Quest - Episode 72 - The Ramius Mk II · 20:25 · Video: Scott Manley · Watch at the source

In short: Explore the technical pivot from Tokamak fusion to antimatter-induced fusion in the development of the Ramius Mk II. This video examines how shifting propulsion technologies impacts thrust, mass ratios, and aerodynamic stability.

To energise the Ramius II spacecraft, engineers abandoned Tokamak fusion methods for a system using antimatter-induced fusion. This shift was driven by a need for better performance metrics, specifically achieving a higher thrust-to-mass ratio by utilizing Methylox fuel as an internal source.

Despite these propulsion gains, the vehicle remains constrained by its aerodynamic design. The current configuration is noted for being poorly balanced, illustrating the constant tension between maximizing engine output and maintaining structural flight stability.

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