How are the wheels prevented from turning when you raise the Main Gear?

How are the wheels prevented from turning when you raise the Main Gear?

• A. Hydraulic Pressure
• B. Electrical Brakes
• C. Pneumatic Locks
• D. Mechanical Interlocks

Answer: (A)

When the Main Gear is raised, hydraulic pressure is used to apply the wheel brakes, locking the wheels and preventing them from turning. This keeps the wheels from windmilling as the gear retracts, protecting the tires and gear doors and ensuring a smooth, stable retraction sequence. The braking system provides the necessary resistance directly through hydraulically actuated brakes; other methods like electrical brakes, pneumatic locks, or purely mechanical interlocks aren’t what’s used here to stop wheel rotation during retraction.

When the Main Gear is raised, hydraulic pressure is used to apply the wheel brakes, locking the wheels and preventing them from turning. This keeps the wheels from windmilling as the gear retracts, protecting the tires and gear doors and ensuring a smooth, stable retraction sequence. The braking system provides the necessary resistance directly through hydraulically actuated brakes; other methods like electrical brakes, pneumatic locks, or purely mechanical interlocks aren’t what’s used here to stop wheel rotation during retraction.