BOUNDARY LAYER DUCTED FAN PROPULSION SYSTEM

An aircraft propulsion system includes a propulsive fan assembly configured for assembly into an aircraft structure, the propulsive fan assembly that includes a fan rotatable about a fan axis, an inlet duct assembly (34) disposed within the aircraft fuselage, the inlet duct assembly (34) that includes an upper inlet duct (36) with an upper inlet opening (38) and a lower inlet duct (40) with a lower inlet opening (42). The upper inlet duct (36) and the lower inlet duct (40) merge into a common inlet duct (46) forward of the propulsive fan assembly, and an outlet duct (44) is disposed aft of the propulsive fan assembly.