By General

This guide is designed to help a student helicopter pilot prepare for the oral portion of their check ride. The guide is set up on the following manner for each section: question, brief statement, expanded explanation, and reference(s).

What is induced flow?

By Aerodynamics

Induced flow is the downward vertical movement of air through the rotor system due to the production of lift, often referred to as downwash.

What is flapping?

By Aerodynamics

Flapping is the vertical movement of a blade up or down to increase or decrease lift in order to compensate for dissymmetry of lift.