▎Loyal Wingman

Sense-and-Avoid/ SAA / DAA

Capability for uncrewed aircraft to detect and avoid other airspace users.

Definition

Sense-and-Avoid—now generally Detect-and-Avoid (DAA)—is the capability for an uncrewed aircraft to maintain well-clear and emergency separation from other airspace users without a pilot in the cockpit. ACAS Xu is the emerging DAA standard for large UAS. SAA is a regulatory gating capability for any CCA expected to operate in shared airspace.

Reference attributes

Modern standard: ACAS Xu (RTCA DO-365)
Sensors: ADS-B, radar, EO/IR, acoustic

Related terms

ACAS Xu
Airborne Collision Avoidance System variant designed for unmanned aircraft.
Run-Time Assurance (RTA)
Safety architecture that monitors and overrides untrusted autonomy at run time.

#safety#airspace