Where is the Torque Tube located?

• A. From Center Wing Equipment Bay Into Flap Well
• B. In the Tail Section
• C. In the Engine Nacelle
• D. In the Nose Gear Bay

Answer: (A)

The flap actuation system uses a torque tube to transmit rotational input from the drive point to the flap mechanisms. On the B‑52, this torque tube runs from the center wing equipment bay into the flap well, placing the drive where the flaps are actuated and keeping the mechanism protected inside the wing structure. This routing provides a direct, protected path for moving the flaps without routing through other major sections of the aircraft.

The tail section, engine nacelles, and nose gear bay are dedicated to other systems (tail surface actuation, powerplant-related components, and landing gear, respectively), so they aren’t the locations for the flap torque tube.