Why should you avoid ejecting if the canopy is obviously unlocked?

Ejecting from an aircraft with an unlocked canopy poses a significant risk of striking the canopy frame during ejection. In a designed ejection sequence, the seat is propelled upwards and outwards from the aircraft. An unlocked canopy may inadvertently remain in its place or partially obstruct the ejection pathway. As the ejection seat exits the aircraft, the pilot risks colliding with the edge of the canopy, which can lead to serious injury or even fatality.

The presence of an unlocked canopy suggests that there is insufficient clearance for a safe ejection. A proper understanding of the ejection sequence and the surrounding environment is crucial, and this is why recognizing the state of the canopy is vital before making the decision to eject.