When is it appropriate to deploy the main parachute?

The main parachute should be deployed within the recommended altitude range to ensure safe and effective opening of the canopy. This altitude range is determined based on various factors, including the type of jump, experience level of the jumper, and specific guidelines from the manufacturer and training programs. Deploying the parachute too high can result in insufficient time for the parachute to inflate properly and for the jumper to assess its function, while deploying it too low may not allow enough altitude for recovery procedures should there be a malfunction. Therefore, adhering to the recommended altitude ensures a higher likelihood of safety and successful recovery from freefall.

The other options highlight scenarios that are not optimal for parachute deployment. For example, deploying after reaching the ground does not allow for a parachute deployment at all. Likewise, deploying at the peak of freefall may not maximize the available altitude for deployment and assessment. Activating emergency procedures is reserved for specific situations where there is a malfunction, making it essential to follow established altitude guidelines under normal circumstances.