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.

• 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。