What is the main purpose of an automatic activation device?

The primary function of an automatic activation device (AAD) is to serve as a backup for the jumper's emergency procedures. This device is designed to automatically deploy the parachute if the jumper has not done so at a pre-determined altitude. It acts as a safety mechanism, ensuring that a parachute is activated in case the skydiver is incapacitated or fails to deploy the parachute themselves, making it an essential tool for enhancing safety in skydiving.

While assisting with parachute deployment might seem related to the function of an AAD, it is important to note that the device does not actively assist in deployment but rather takes over in case of the jumpers' inaction. Similarly, controlling descent speed is typically the role of the parachute itself rather than an AAD. While altitude measurement is vital in skydiving, the AAD's function is not focused on measuring altitude but rather on ensuring deployment at critical altitudes, specifically for safety measures.