What command is given after hearing "Brace, Brace, Brace" from the Captain?

The command given after hearing "Brace, Brace, Brace" from the Captain is "Brace, heads down, stay down." This instruction is a critical part of emergency preparedness on an aircraft, indicating the need for passengers and crew to protect themselves in the event of a potential impact.

When the Captain announces "Brace, Brace, Brace," it signifies an imminent emergency that requires immediate action for safety. The directive to "Brace, heads down, stay down" instructs individuals to position themselves in a protective stance that minimizes injury during a possible crash landing or similar situation. This involves leaning forward with heads down to reduce the risk of head and neck injuries, which can occur during impact.

This command effectively communicates the urgency and necessity for passengers and crew to take measures that can help protect them during a dangerous scenario, thereby enhancing safety and potentially minimizing injuries.