In normal operations, what should regulate the launch and recovery system's functionality?

The functionality of the launch and recovery system during regular operations is primarily governed by the drive system. The drive system is responsible for powering the mechanisms that allow for the safe and efficient launch and retrieval of divers and associated equipment. It ensures that the system operates smoothly and effectively, maintaining necessary speeds and forces to manage the weight and movements of what is being launched or recovered.

While other options like brakes, emergency backup, and manual control have their roles, they are not the primary regulatory function during normal operations. The brakes are essential for stopping and holding the system in place, the emergency backup serves to ensure safety and functionality in cases of primary system failure, and manual control allows operators to intervene as necessary. However, the drive system is specifically designed to manage all aspects of launching and recovering equipment as part of routine activity, making it the core component in regulating the system's functionality.