What is an acceptable maximum free play for an elevator trim tab when the dimensions are within specified limits?

The correct choice regarding the acceptable maximum free play for an elevator trim tab is based on standard industry practices and regulatory guidance concerning control surfaces. The maximum free play in elevator trim tabs is typically specified to ensure that the trim tab functions correctly and contributes to the overall stability of the aircraft without generating undue wear or stress on the control mechanisms.

In many regulatory frameworks, a maximum free play of 0.060 inches is stipulated as acceptable for elevator trim tabs when overall dimensions remain within the specified limits. This threshold is designed to balance operational responsiveness with safety, ensuring that pilots can make precise adjustments without the risk of excessive play that might lead to control difficulties or miscommunication between the pilot's inputs and the actual trim adjustments.

Exceeding this limit can result in negative operational consequences, such as unintended trim adjustments or diminished aerodynamic efficiency. Therefore, compliance with this maximum is critical in maintaining aircraft performance and safety.