ALLFROMAIR® TERRA² Technical Addendum 7 — Wind-Assisted Aeraulic Drive, Regenerative Electromagnetic Braking, and Goldilocks Site-Selection Framework
Abstract
This Addendum discloses four novel extensions to the ALLFROMAIR® Three-Stage Rocket / TERRA² platform that collectively enable wind-assisted and fully fan-free operation at coastal and lakeside sites. (1) Wind-Assisted Aeraulic Drive: at wind speeds ≥ 2.5 m/s, ambient wind replaces mechanical EC-fan work as the primary motive force for air transport, via natural pressure-driven ventilation through the low-resistance Anticubic channel. (2) Regenerative Electromagnetic Braking: when wind exceeds the 1.8 m/s channel design velocity, the stepless EC-fan motor inverters switch to retarder mode, controlling channel airflow to the design target while recovering 1.2–4.2 kW at 4–6 m/s — sufficient to self-power all sensors and AI-CORE™ control at wind ≥ 3.8 m/s. (3) Marine-Grade Self-Locking Storm Dampers: worm-gear actuators with a self-locking lead angle hold the damper at any set position against full storm load at 0 W holding power after the actuator is de-energised. (4) Goldilocks Site-Selection Framework: a siting methodology based on the 1 km passive salt-filtration rule, cold deep-water access (4°C), reliable coastal wind statistics, and topographic wind-break use, identifying sites where ECO 1 (~0 kW grid) and ECO 2 (~90,000 L/day Nordic / ~200,000 L/day tropical coastal) are achievable for the majority of annual hours — including tropical and desert coastal sites served by cold upwelling currents. Non-linear scalability advantages are also documented: AWG output scales linearly with system cross-section while the fan-free threshold remains constant, increasingly favouring large wind-assisted installations.