What would you temporarily install on an aircraft to protect the flight control surfaces in the event of high winds?

Question

BlackTom AI · Accepted Answer

Battens stiffen fabric or lightly-skinned control surfaces, preventing excessive movement and flutter in strong winds, so they are the temporary protection used.

1. Relevant knowledge points and concepts
- Control surfaces (ailerons, elevators, rudder) can be damaged by repeated pounding, flutter, or distorting loads when exposed to high winds while parked.  
- Temporary protective devices are used to keep surfaces in their designed shape and to limit free movement that causes wear or structural damage.  
- Battens are removable rigid strips inserted into pockets or attached across control-surface panels to stiffen and support the surface skin or fabric.

2. Step‑by‑step reasoning
- Identify the hazard: high winds can cause the control surfaces to oscillate, flex, or strike stops, leading to fabric abrasion, hinge wear, or structural damage.  
- Choose a device that directly prevents the control surface from flexing along its span or losing its airfoil shape: battens fit into the surface to add stiffness and maintain contour.  
- Install battens according to the manufacturer’s instructions (insert into batten pockets or secure with specified fasteners), ensuring they fit properly and do not interfere with control linkages or locking devices.

3. Intermediate steps (installation details)
- Inspect batten pockets/covers for debris.  
- Slide battens into designated pockets or clamp across the surface as specified.  
- Verify that battens are seated evenly and that control surface movement is appropriately limited without stressing hinges.

4. Why the correct answer is correct
- Battens directly add rigidity to the surface skin/fabric, preventing the flapping and distortion caused by gusts. They are designed as temporary inserts, making them ideal for short-term protection in high winds.

5. Why other common alternatives are incorrect or less appropriate
- Chocks protect wheels, not control surfaces.  
- Tie‑downs restrain the airframe but do not stiffen the control surface itself.  
- Gust/control locks immobilize controls but can transmit concentrated loads and may not prevent local surface flutter or fabric wear; they are also not suitable as a sole protection method for fabric surfaces.

6. Conclusion
Battens are the appropriate temporary installation to protect flight control surfaces in high winds; this confirms the provided correct answer, “Battens.”

What would you temporarily install on an aircraft to protect the flight control surfaces in the event of high winds?单项选择题

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