What is the maximum airspeed for the TH-73A during the opening and closing of doors?

• A. 60 KIAS
• B. 70 KIAS
• C. 75 KIAS
• D. 80 KIAS

Answer: (B)

The maximum airspeed for opening and closing the doors on the TH-73A is indeed 70 KIAS. This limitation is crucial for maintaining the structural integrity and safety of the aircraft during door operations. At speeds above this limit, the aerodynamic forces can create excessive stress on the door mechanisms and their hinges, potentially leading to malfunctions or damage. Adhering to this airspeed restriction ensures that pilots can operate the doors safely, whether entering or exiting the aircraft, without risking unintentional complications that could compromise operational safety. Understanding this limitation helps pilots effectively plan their operations, particularly when preparing for takeoff or landing, when door usage is most crucial.