SOG
Speed Over Ground. This can be different to air speed.
FLIR
Forward Looking Infra Red. Cameras that detect infrared radiation usually from a heat source and translate this into visual data.
RTL / RTH
Return to Launch / Return to Home. A command that can be given to the drone to recall it to its starting position.
RTF
Ready to Fly. A drone that is already assembled and ready to fly out of the box.
RPAS
Remote Piloted Aerial System. The official term for drone used by the CAA
PIC
Pilot in Command.
PfCO
Permission for Commercial Operations. The CAA granted permissions that allow a pilot to fly their drone commercially.
OSC
Operating Safety Case. An additional set of CAA permissions allowing a pilot to operate their aircraft outside of standard permissions, at reduced distances for example.
OM
Operations Manual. A document detailing everything about a pilot's business model and operation that must be up to date and submitted to the CAA on an annual basis to maintain a PfCO
OAS
Obstacle Avoidance System. Allowing an aircraft to detect obstacles or hazards and take automatic steps to avoid collision with them.
