Definition

A reduced thrust takeoff is a takeoff that is accomplished utilising less thrust than the engines are capable of producing under the existing conditions of temperature and pressure altitude.

Rationale

AOM limitations, runway length, field altitude, and obstacles factored against the actual aircraft weight and existing environmental conditions allow the calculation of thrust necessary to meet regulatory requirements for takeoff. In many cases, the required thrust is less than the engines' maximum power. The primary advantage of a reduced thrust takeoff is cost savings through increased engine life and reduced overhaul costs. A secondary benefit is noise abatement.