What are the three major components of the back automatic parachute?

The three major components of the back automatic parachute are the canopy, pack and harness, and automatic ripcord release.

The canopy is the fabric part that opens and creates lift when deployed, allowing for a safe descent. The pack and harness function is to stow the canopy when not in use and secure the parachutist during descent. The automatic ripcord release is a critical safety feature that automatically deploys the parachute at a predetermined altitude, ensuring that the parachutist has a backup deployment mechanism without relying on manual activation.

These components work together to ensure that the parachute functions effectively and safely, which is vital for aircrew safety during ejection or other emergency landing scenarios. Understanding these parts and their roles is essential for personnel involved in aircrew flight equipment.