Division (b) Helicopters operated under VMC at night, or when the visibility is less than 1 500 m, or in conditions where the helicopter cannot be maintained in a desired flight path without reference to one or more additional instruments, shall be, in addition to (a), equipped with:F1
United Kingdom
- (1)
a means of measuring and displaying the following:
- (i)
attitude;
- (ii)
vertical speed; and
- (iii)
stabilised heading; and
- (i)
- (2)
a means of indicating when the supply of power to the gyroscopic instruments is not adequate.