Can the static lines on the Arrow be drained?

The correct choice indicates that the static lines on the Arrow can indeed be drained with a specific mechanism located to the left of the pilot's seat. This feature is designed to help maintain the accuracy of the altimeter and other pressure-sensitive instruments by venting any moisture or contaminants that might accumulate in the static system, which can lead to erroneous readings if not managed properly.

Understanding the necessity of draining the static lines is crucial for pilots, as a malfunction in the static system can seriously impact instrument performance and, consequently, flight safety. Regular maintenance and features like manual draining are part of ensuring that the aircraft performs optimally.

Other options suggest different methods or capabilities regarding the static line drainage. Manual draining or automatic options during maintenance do exist in some aircraft, but the specific mechanism mentioned in the correct option is designed specifically for use in the Arrow, making it a key operational detail for pilots flying that model.