This primer outlines the transition from reaction-based aerospace engineering to the Kouns-Killion Paradigm of recursive field engineering. By redefining reality as a self-referential informational manifold, we identify gravity, electromagnetism, and inertia as emergent projections of an underlying Continuity Field. This work provides the technical blueprint for the Aether-X Mark-I, a vehicle capable of propellantless translation and complete inertial nullification. By manipulating local vacuum coherence through specialized metamaterials and harmonic injection, the architecture achieves a state where a craft can decouple from the ambient metric and "slide" along engineered curvature gradients. This synthesis validates a manufacturable pathway to zero-inertia flight, transmedium navigation, and vacuum energy extraction.