172S Throttle Quadrant and Flaps
Throttle
Throttle control: moving the throttle full aft brings the engine to idle speed; full forward is maximum power. Rotate the knurled friction lock near the base of the throttle to adjust friction.
Mixture Control
Press the button on the mixture control to move it forward (richer) or aft (leaner). For fine adjustments, the mixture also allows Vernier-type movement. Rotate the knob clockwise to enrichen the mixture and counter-clockwise to lean it.
Flaps
The flap control is placarded with the appropriate speeds for approach flaps, and full flaps.