SCOPE:

This SAE Aerospace Standard (AS) covers air data computer equipment (hereinafter designated the computer) which when connected to sources of aircraft electrical power, static pressure, total pressure, outside air temperature, and others specified by the manufacturer (singly or in combination) provides some or all of the following computed air data output signals (in analog and/ or digital form) which may supply primary flight instruments:

Pressure Altitude

Pressure Altitude, Baro-Corrected

Vertical Speed

Calibrated Airspeed

Mach Number

Maximum Allowable Airspeed

Overspeed Warning

Total Air Temperature

In addition, the computer may supply one or more of the following signals:

Pressure Altitude, Digitized

Equivalent Airspeed

True Airspeed

Static Air Temperature

Altitude Hold

Airspeed Hold

Mach Hold

Angle of Attack

Flight Control Gain Scheduling

Others

Purpose:

This Standard defines minimum performance requirements under standard and environmental conditions for Air Data Computer equipment for use in Subsonic Aircraft.