Compared with the propeller or the rotor, the ducted fan provides a larger aerodynamic thrust (lift) and the low noise due to the shrouding duct.

• 摘要涵道风扇较同样直径的孤立风扇能产生更大的升力，且风扇环括在涵道内，既可阻挡风扇气动声向外传播，又结构紧凑、安全性高。