How far should the boom be lowered and extended?

The correct choice regarding the appropriate distance for lowering and extending the boom is 10 feet. This distance ensures that the boom is adequately positioned for safe and effective aerial refueling operations. Lowering the boom to this extent provides the necessary reach to connect with aircraft reliably while also maintaining control and stability during the fuel transfer process.

Using 10 feet as the standard allows for precision in the operation, minimizing potential risks associated with too close or improper positioning. It is crucial for boom operators to be trained to assess the distances accurately to ensure a seamless and functional refueling mission. Maintaining the boom at this established distance contributes to the overall safety and efficiency of the operation, highlighting its importance in correct protocol for aviators.