What is one of the components of the T-11 Main pack tray assembly?

The pack closing flaps are indeed a key component of the T-11 Main pack tray assembly, serving an essential function in ensuring that the parachute is properly secured and protected during deployment. These flaps are designed to close over the top of the parachute, preventing it from inadvertently opening prior to the jump and helping to maintain the structural integrity of the pack. Their design is critical in facilitating a smooth and safe parachute opening once the static line is activated at jump time.

In the context of parachute operations, the effectiveness of the pack closing flaps directly influences the reliability of the parachute deployment, which is a top priority for jumpmasters and parachutists alike. Every component of the assembly works together to ensure a successful jump, but the pack closing flaps play a fundamental role in this critical last point of closure before a jump occurs.