The study of Unidentified Anomalous Phenomena (UAP) has introduced ground-breaking considerations regarding their capacity to transition seamlessly between different physical environments, including air, water, and space. A key aspect of UAP behaviour is their apparent ability to navigate energetic fields with minimal resistance to inertia and gravity. This paper explores the hypothesis that such trans-medium craft must possess a specialized permeable surface membrane capable of harnessing and manipulating energetic fields. By examining the properties of this membrane-particularly its structural composition and interactions with electromagnetic (EM) and scalar fields-this research aims to infer potential principles governing advanced propulsion systems. The paper proposes that a biopolymeric, crystalline outer layer may enable UAP-like manoeuvrability through dynamic electromagnetic manipulation, directional energy control, and resonance harmonization. The implications of these findings extend to the fields of aerospace engineering, quantum mechanics, and theoretical physics.