feathering screw的意思|示意

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Feathering screws are a sort of screw used for adjusting the trim of an aircraft. In aviation, trim is used for controlling the balance of an aircraft in the air. This can be done by positioning the ailerons, elevator, rudder, and/or flaps.

Feathering screws are used in combination with other trimming devices to make tiny adjustments to the trim. They are usually located on the control surfaces of the aircraft, but some aircraft may have them in the cockpit. The pilot can use the screw to adjust the trim in the desired direction, thus changing the balance of the aircraft in the air.

The screw works by allowing the pilot to move the control surface further or less than the normal range. When the screw is turned, it pushes or pulls the control surface in the desired direction. This creates a trimming effect, as the aircraft needs to be balanced in the air.

Feathering screws are usually used in combination with other control systems. For example, a pilot may use the screw to make minor adjustments to the trim while he or she adjusts the flaps to control the lift and drag of the aircraft.

As with all aircraft systems, feathering screws should be used with caution and only when necessary. If the screws are not properly adjusted, it can create instability in the aircraft. Therefore, it is important to read the manual of the aircraft carefully before using them.