Commercial Pilot License (CPL) Practice Exam 2025 - Free Commercial Pilot License Practice Questions and Study Guide

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What is a primary benefit of flying an aircraft at high altitudes?

Increased airspeed for less fuel consumption

Decreased risk of engine failure

Less aerodynamic drag due to thinner air

Less fuel consumption for a given airspeed

Flying an aircraft at high altitudes offers the primary benefit of less fuel consumption for a given airspeed. At higher altitudes, the air is less dense, which results in lower aerodynamic drag on the aircraft. This reduction in drag allows the aircraft to maintain its cruising speed while using less thrust and, consequently, less fuel. This is particularly advantageous during long flights, where optimizing fuel efficiency is critical for range and cost-effectiveness.

While other benefits, such as decreased drag (which is also an effect of flying at high altitudes) and operational considerations like engine performance, exist, the key overall advantage is the significant reduction in fuel burn for sustaining a particular airspeed in thinner air. This factor not only impacts operational efficiency but also aids in overall economic performance for flight operations.

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