What three factors create the operating envelope for ejection system performance?

The operating envelope for an ejection system is critically affected by dive angle, bank angle, and sink rate. Each of these factors influences the aerodynamic conditions during an ejection scenario.

Dive angle refers to the angle at which the aircraft is descending relative to the horizontal plane. A steeper dive angle can alter the dynamics and stresses experienced by both the aircraft and the occupant during ejection, impacting the effectiveness of the ejection seat and the safety of the occupant.

Bank angle indicates the degree to which the aircraft is tilted sideways during a maneuver. This factor can significantly affect the ejection trajectory, as ejection at high bank angles can lead to an increased risk of collision with the aircraft itself or complications in recovery after ejection.

Sink rate measures the vertical speed at which the aircraft is descending. A higher sink rate imposes different loading conditions on the body during ejection, potentially complicating the ejection sequence and the parachute's deployment.

Understanding the interplay of these three factors is crucial in ensuring that the ejection system performs optimally under varying conditions, maintaining the safety and effectiveness of the ejection procedure.