DESCRIPTION

The low airspeed indicator, located in the pilot instrument panel, measures and displays low airspeed up to 50 knots by horizontal (fore-aft) and vertical (lateral) direction indicators. Airspeed is sensed by the airspeed and direction sensor. The intersection of the two direction indicators is related to the circular scale to obtain resultant airspeed. A three position flag is used to indicate system operational system failure or an over range condition. The primary purpose is to provide windspeed to the FCC. Disregard forward airspeed indication when O/R flag is displayed.