Document ID: chunk:federal_register_of_legislation:F2025C00187:reg:2
Version: federal_register_of_legislation:F2025C00187
Segment Type: reg
Provision Reference: reg 2
Character Range: 297320–297987

2     Pressure altitude     1. The equipment must:
                               (a) have an adjustable datum scale calibrated in millibars or hPa; and
                               (b) be calibrated in ft, except that, if a flight is conducted in a foreign country which measures FLs or altitudes in metres, the equipment must be calibrated in metres or fitted with a conversion placard or device.
                            2. The equipment must be capable of being connected to:
                               (a) an alternate source of static pressure that is selectable by a pilot; or
                               (b) a balanced pair of flush static ports.