Division NCO.IDE.A.125 Operations under IFR — flight and navigational instruments and associated equipmentF1

Aeroplanes operated under IFR shall be equipped with:

1. (a)

   a means of measuring and displaying the following:

   1. (1)

      magnetic heading;

   2. (2)

      time in hours, minutes and seconds;

   3. (3)

      F2barometric altitude;

   4. (4)

      indicated airspeed;

   5. (5)

      vertical speed;

   6. (6)

      turn and slip;

   7. (7)

      attitude;

   8. (8)

      stabilised heading;

   9. (9)

      outside air temperature; and

   10. (10)

       Mach number, whenever speed limitations are expressed in terms of Mach number;

2. (b)

   a means of indicating when the supply of power to the gyroscopic instruments is not adequate; and

3. (c)

   a means of preventing malfunction of the airspeed indicating system required in (a)(4) due to condensation or icing.