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## Control and Performance Method 

Aircraft performance is accomplished by controlling the aircraft attitude and power output. Aircraft attitude is the relationship of its longitudinal and lateral axes to the Earth’s horizon. When flying in instrument flight conditions, the pilot controls the attitude of the aircraft by referencing the flight instruments and manipulating the power output of the engine to achieve the performance desired. This method can be used to achieve a specific performance level enabling a pilot to perform any basic instrument maneuver. 

The instrumentation can be broken up into three different categories: control, performance, and navigation. 

## Control Instruments 

The control inst ruments depict immediate attitude and power changes. The instrument for attitude display is the attitude indicator. Powe r changes are directly reflected on the manifold pressure gauge and the tachometer. [Figure 6-25] All three of these instrume nts can reflect small adjustments, allowing for precise control of aircraft attitude. 

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