Certified Flight Instructor (CFI) Practice Exam 2026 - Free CFI Practice Questions and Study Guide

A spin is characterized as an aggravated stall leading to autorotation in a corkscrew path. During a spin, one wing is more stalled than the other, causing the aircraft to rotate around its vertical axis while simultaneously descending. This rotational motion and descent occur due to an imbalance in lift and drag between the wings. The airplane starts to descend in a spiral due to the differential stall, causing the aircraft to lose altitude rapidly while also rotating. Understanding spins is crucial for pilots because recovering from a spin requires specific techniques to regain control and stabilize the aircraft. The other options do not accurately describe the dynamics and characteristics associated with a spin.