Technical standards

Rules

Start with the GENERAL rules that apply to every attempt, then open the category requirements for aircraft, measurement, evidence, and validation.

Official registry attempts require timed QR checkpoints, blackbox logs analysed through B4F: FL1GHT, proof video, and a gallery thumbnail. Weight classes (Sub-250g and Open) and motor configurations (X4 / X8) each have category-specific limits. Safety, airspace, and honest evidence rules apply to every listing — registry and Public board alike. Full clause text loads below. See How it works for the attempt overview.