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Pitch-and-bank attitudes can be determined simultaneously on the attitude indicator. Even though the miniature aircraft is not level with the horizo n ba r , pi tch a ttitude c a n be established by observing the relative position of the miniature aircraft and the horizon bar. [Figure 8-5] 

The attitude indicator may show small misrepresentations of bank attitude during maneuvers that involve turns. This precession error can be detected immediately by closely cross-checking the other bank instruments during thes e maneuvers. Precession is normally noticed when rollin g out of a turn. If, upon completion of a turn, the miniature aircraft is level and the helicopter is still turning, make a 

3 33 30 small change of bank attitude to center the turn needle and stop the movement of the heading indicator. 

## Heading Indicator 

In coordinated flight, the heading indicator gives an indirect indication of a helicopter’s bank attitude. When a helicopter is banked, it turns. When the lateral axis of a helicopter is level, it flies straight. Therefore, in coordinated flight when the heading indicator shows a constant heading, the helicopter is level laterally. A deviation from the desir ed heading indicates a bank in the direction the helicopter is tu rning. A small angle of bank is indicated by a slow change of h eading; a large angle of bank is indicated by a rapid change of heading. If a turn is noticed, apply opposite cyclic until the heading indicator 

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