What component is used to pre-tension the hook cable of the MA-1A arresting system?

The component that is used to pre-tension the hook cable of the MA-1A arresting system is the pull lift. This component is responsible for applying the necessary tension to the hook cable, allowing for proper functionality of the arresting system when capturing an aircraft. The pull lift effectively ensures that the cable remains taut and can withstand the forces exerted during the recovery process, which is critical for safely and reliably stopping aircraft as they land on the carrier. The proper tension maintained by the pull lift directly contributes to the overall effectiveness of the arresting system and the safety of aviation operations.