A Framework for Hyper-Velocity Interplanetary Propulsion: The Cascade Combustion Ion Technology (CComIT) Drive

Abstract Current interplanetary propulsion systems present a trade-off between thrust and efficiency, fundamentally limiting humanity's capacity for rapid, deep-space missions. This paper introduces a novel propulsion paradigm, the (Cascade) Combustion Ion Technology (CComIT) Drive, designed to achieve hyper-velocities approaching a significant fraction of the speed of light (c). The CComIT Drive overcomes the limitations of traditional systems by generating a sequence of self-amplifying momentum pulses. The core principle involves using an initial momentum-injection pulse to structure a plasma medium behind the spacecraft, which is then excited by a secondary pulse into a coherent magnetosonic wave. This wave acts as a dynamic, artificial nozzle, focusing the energy of a final, high-power ion pulse to generate a hyper-velocity exhaust and an immense thrust impulse. Operational Safety Note: While theoretical cascade amplification can approach 0.3c, practical missions implement automated drive cutoff at predetermined velocity thresholds based on mission profile: interplanetary missions typically limit to 500-5,000 km/s, with a mandatory safety maximum of 100,000 km/s (0.33c) to prevent accidental FTL overshoot without warp field protection. Interstellar missions may operate up to 0.9c (~270,000 km/s) with full relativistic mission planning and crew preparation. Each cycle builds upon the momentum of the last, creating a cascade effect that enables a quasi-linear acceleration to velocities on the order of 100,000 km/s. We present the complete theoretical foundation of the drive, underpinned by Magnetohydrodynamics (MHD), and provide a rigorous mathematical model of the cascade amplification process. Furthermore, we define the engineering architecture of the system using the Architectural Relational & Coordinate (ARC-File) Framework, ensuring verifiable and reproducible design. A case study for a planetary defense interceptor demonstrates the transformative potential of this technology for ensuring planetary security and enabling a new era of deep-space exploration.