What type of flight activity would require every occupant to wear a parachute?

The requirement for every occupant to wear a parachute is specifically associated with intentional air maneuvers that exceed certain angles, particularly during aerobatic flight operations. When performing these maneuvers, there is an increased risk due to the higher stresses and potential for loss of control that can occur. To enhance safety, regulations typically mandate the use of parachutes for everyone onboard when engaged in aerobatic practices, ensuring that all occupants have a means of escape should a critical situation develop.

In contrast, routine flight operations do not necessitate parachute use as they typically adhere to standard flight parameters without the elevated risk present in aerobatic maneuvers. Transcontinental flights are conducted under regular operating procedures, where parachute requirements are not applicable. Training flights with an instructor, although they may involve various maneuvers, do not uniformly require parachute use, especially when not conducting aerobatic exercises. Only specific maneuvers that exceed defined operational thresholds necessitate the use of parachutes for all occupants.