While the Impulse Needle (HIN) utilizes "Forward-Stretch" for deep-space travel, this methodbecomes turbulent within a planetary atmosphere. The HAH Protocol introduces a secondary flightmode: Laminar Displacement. By shifting the Hex-Cell Reactor (HHR) frequency to match thelocal Atmospheric Refresh Rate, the ship creates a "Vortex Bubble" that moves through the airwith zero friction, zero sonic boom, and absolute silence.
Rafael Habryka (Wed,) studied this question.