What is the primary use of the automatic ripcord release in the back automatic parachute?

The primary use of the automatic ripcord release in the back automatic parachute is to automatically deploy the parachute at a designated altitude. This mechanism is critical for ensuring that the parachute opens at the correct time, which is vital for the safety of the jumper. By utilizing this automatic deployment system, the parachute is released without the need for manual intervention, allowing the aircrew member to focus on other tasks during their descent. This feature is especially important during high-stress situations where the individual might not be able to pull the ripcord due to orientation, distraction, or other factors.

The automatic deployment mechanism enhances safety by reducing the chances of human error and ensuring that the parachute opens in a timely manner, providing a smooth and controlled descent.