Division SPO.IDE.H.125 Operations under IFR — flight and navigational instruments and associated equipmentF1
United Kingdom
Helicopters operated under IFR shall be equipped with:
- (a)
a means of measuring and displaying:
- (1)
magnetic heading,
- (2)
time in hours, minutes and seconds,
- (3)
F2barometric altitude,
- (4)
indicated airspeed,
- (5)
vertical speed,
- (6)
slip,
- (7)
attitude,
- (8)
stabilised heading, and
- (9)
outside air temperature;
- (1)
- (b)
a means of indicating when the supply of power to the gyroscopic instruments is not adequate;
- (c)
whenever two pilots are required for the operation, an additional separate means of displaying:
- (1)
barometric altitude,
- (2)
indicated airspeed,
- (3)
vertical speed,
- (4)
slip,
- (5)
attitude, and
- (6)
stabilised heading;
- (1)
- (d)
a means of preventing malfunction of the airspeed indicating system required by (a)(4) and (c)(2) due to condensation or icing;
- (e)
an additional means of measuring and displaying attitude as a standby instrument; and
- (f)
the following for complex motor-powered helicopters:
- (1)
an alternate source of static pressure; and
- (2)
a chart holder in an easily readable position that can be illuminated for night operations.
- (1)
Annotations
Textual amendments
- F1
- F2