The Slade Layered Propulsion Architecture (SLPA) is a complete end-to-end space logistics framework that treats heat as a regenerative resource. Through the integration of the RTC (Regenerative Thermal Core), the STIP multi‑mode propulsion system, and the EMU (Extraction & Mass Uplift) tubes, SLPA enables a scalable, self-sustaining transport network across the solar system.
The RTC is a vacuum‑insulated thermal reservoir capable of storing solar heat for months or years. It provides reliable energy for propulsion, life support, and depot operations. Because RTCs can be produced from regolith-derived materials, they reduce reliance on Earth-launched systems and offer continuous power from Earth orbit to the outer planets.
STIP converts RTC heat into thrust using simple, abundant gases such as CO₂, steam, or mixed-gas blends. By stacking thermal, chemical, and optional plasma heating stages, STIP delivers low-thrust stationkeeping, efficient cruise, and high‑Isp deep‑space propulsion in a single unified system.
EMU tubes provide a continuous supply of water, CO₂, and raw materials by uplifting 5–10 kg frozen packets from subsurface deposits into orbit using solar‑heated steam or gas pressure. Built directly into ice layers on the Moon, Mars, or icy moons, EMUs create a low‑cost, rocket‑free mass export pipeline that feeds orbital depots and supports industrial expansion.
Together, these systems form a closed industrial loop: local resources power local infrastructure, which fuels interplanetary transport that enables further expansion. SLPA is therefore not just a propulsion method—it is a full-scale, regenerative architecture for solar system development.