What holds the Nose Gear in the retracted position?

• A. A spring loaded, over-center type locking mechanism
• B. Mechanical up locks
• C. Hydraulic lock
• D. Electrical lock

Answer: (A)

The nose gear is held retracted by a spring-loaded, over-center locking mechanism. As the gear completes its retraction, the locking linkage moves past the center point and the spring biases the lock into place. This creates a positive, self-locking condition that resists any loads from flight vibrations, aerodynamics, or hydraulic pressure trying to push the gear back out. The over-center action makes the lock stable in the retracted position even if other systems momentarily change state.

Other options aren’t as fitting because the retention is primarily a mechanical, geometry-based lock rather than a purely hydraulic or electrical one; and while some systems use additional mechanical up locks, the spring-loaded over-center arrangement is what provides the reliable, positive hold in the retracted position.