Civil Aviation Authority. The CAA came into being as an independent regulator and public corporation in 1972, before which a body known as the Air Registration Board was responsible for regulating aviation.

Beyond Visual Line of Sight. Generally a pilot is legally obligated to keep their aircraft in their line of sight, that is visible to the pilot with the naked eye. Legislation is in motion to allow pilots to fly beyond their line of sight which is seen as key to unlocking services such as drone delivery.

British Model Flying Association. The BMFA is the National Governing Body for the sport of model flying. Its aims are to promote, protect, organise and encourage model flying within the UK

Battery Elimination Circuit. A circuit that is designed to deliver electrical power to other circuitry eliminating the need for multiple batteries.

Air Traffic Control. The ground-based personnel and equipment concerned with controlling and monitoring air traffic within a particular area.

Aerial Photography - a blanket term for all photography taken from a UAV in flight.

Air Navigation Order - an Act of Parliament detailing the law as it relates to Civil Aviation in the UK

Altitude Above Ground Level

Aerodrome

Autonomous Collision Avoidance System - this allows the drone to detect obstacles and reroute or hold position in order to avoid them.