Question

An aircraft should be facing into the wind when trimming an engine. However , if the velocity of the wind blowing into the intake is excessive, it is likely to cause

Answer 1

When trimming an aircraft engine, excessive wind velocity can cause engine surging, over-speed conditions, or compressor stalls, due to disrupted airflow and increased pressure within the engine intake.

Step-by-step explanation:

An aircraft should indeed be facing into the wind when trimming an engine to ensure that the airflow into the engine intake is as straight as possible, which helps in achieving accurate engine run-up tests. However, if the velocity of the wind is overly excessive, it can lead to issues such as engine surging, over-speed conditions, or compressor stalls due to the disruption of smooth airflow and increased pressure within the engine intake. These situations can pose risks during the ground testing of an engine and hence, it is important to consider wind conditions when performing these types of operations on aircraft.