When are aerobatic maneuvers allowed in Class A, B, or C airspace?

Aerobatic maneuvers in controlled airspace, such as Class A, B, or C, require prior notification to air traffic services. This is essential for maintaining safety and order within these busy airspaces, which are typically frequented by commercial and other aircraft that operate under Instrument Flight Rules (IFR).

Notifying air traffic control is crucial as it allows them to manage air traffic effectively and ensures the maneuvers do not interfere with other aircraft operations. Controlled airspace has established protocols to prevent hazards to all air traffic, especially given the potential for aerobatics to create unexpected flight paths or altitude changes.

While other options may suggest conditions under which aerobatic maneuvers might be deemed acceptable, they do not align with safety regulations governing operations in controlled airspace. Thus, the requirement for prior notification stands as the key element for conducting aerobatics in these areas.