Night VFR equipment

Required Instruments

CASR Part 91 MOS Division 26.3

An aeroplane subject operating under the visual flight rules (VFR) by night is subject to the following instrument carriage requirements:

  • indicated airspeed;
  • pressure altitude;
  • magnetic heading;
  • time;
  • Mach number — but only for an aeroplane with operating limitations expressed in terms of Mach number;
  • turn and slip;
  • attitude;
  • vertical speed;
  • stabilised heading;
  • outside air temperature;
  • whether the supply of power to gyroscopic instruments (if any) is adequate.

Specifications – Specific Instruments

For an instrument in row 1, then the conditions in row 2 apply.

Row 1Row 2
Indicated airspeed

The equipment must be capable of being connected to:

  • an alternate source of static pressure that:
    • is selectable by a pilot; andincludes a selector that can open or block the aeroplane’s static source and alternative static source at the same time; or
    a balanced pair of flush static ports.
Pressure altitude
  • The equipment must:
    • have an adjustable datum scale calibrated in millibars or hPa; andbe calibrated in feet, 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; orfitted with a conversion placard or device.
    The equipment must be capable of being connected to:
    • an alternate source of static pressure that is selectable by a pilot; ora balanced pair of flush static ports.
Magnetic heading

The equipment must be:

  • a direct reading magnetic compass; orboth:
    • a remote indicating compass; and a standby direct reading magnetic compass.
Time
  • The equipment must display accurate time in hours, minutes and seconds. The equipment must be:
    • fitted to the aircraft; orworn by, or immediately accessible to, the pilot for the duration of the flight.
Turn and slipThe equipment must display turn and slip information, except when a second independent source of attitude information is available in which case only the display of slip information is required.
Vertical Speed

The equipment must be capable of being connected to:

  • an alternate source of static pressure that is selectable by a pilot; ora balanced pair of flush static ports.
Stabilised headingNote – A gyromagnetic type of remote indicating compass meets this requirement if it has a primary power supply and an alternate power supply.
CASR 91 MOS Table 26.07 (4)

Navigational Aids

An aeroplane for a VFR flight by night must be fitted with an approved GNSS, or an ADF or VOR.

Approved GNSS

A GNSS system is approved if it manufactured to the technical standard order (TSO) C129A, C145A, C146A or C196A, and hall all provided barometric aiding options connected.