Singapore legislation
Regulation 88
of Air Navigation (121 — Commercial Air Transport by Large Aeroplanes) Regulations 2018
Regulation 88
Aircraft operating under VFR
An AOC holder must ensure that a large aeroplane that is to be flown in accordance with the Visual Flight Rules is equipped with a means of measuring and displaying —
(a)
magnetic heading;
(b)
the time in hours, minutes and seconds;
(c)
barometric altitude;
(d)
indicated airspeed; and
(e)
mach number, if the speed limitation prescribed by the aircraft flight manual is expressed in terms of mach number.