It has been found that reduced power/reduced drag approach techniques (or a combination of both) have proved to be both effective and operationally acceptable. The object of such techniques is to achieve uninterrupted descents at reduced power and drag by delaying the extension of flaps and landing gear until the final stages of the approach. These techniques result in higher than normal gear down and flap approach speeds.

The pilot can minimize noise emission during the descent and approach phases of flight in an engine-driven aircraft with high approach with minimum power setting, late descent, late configuration, and adherence to established arrival routes for the following reasons:

1. High Approach with Minimum Power Setting: Flying at a higher altitude initially with a minimum power setting reduces engine noise, as less thrust is required, thus decreasing noise pollution.
2. Late Descent: Delaying the descent until closer to the runway means the aircraft spends less time flying at lower altitudes where noise is more perceptible to people on the ground.
3. Late Configuration: Extending the landing gear and deploying flaps closer to the landing minimizes the aerodynamic noise these actions cause because these noises won't persist through a prolonged duration.
4. Adherence to Established Arrival Routes: Following established flight paths ensures that the aircraft avoids noise-sensitive areas and flies over regions where noise impact is less disruptive, as these routes are typically designed considering noise abatement.