A flow path splitter duct is provided. The flow path splitter duct
includes a main hub, a first outlet hub and a second outlet hub. The main
hub has a plurality of inlet ports each being separated by at least one
wall. The first outlet hub has a plurality of first duct outlet ports,
each of the first duct outlet ports are in fluid communication with only
one of the corresponding plurality of inlet ports. The second outlet hub
has a plurality of second duct outlet ports, each of the second duct
outlet ports are in fluid communication with only one of the
corresponding plurality of inlet ports, wherein engine exhaust gas that
enters one of the plurality of inlet ports is simultaneously diverted to
only one of the first duct outlet ports and to only one of the second
duct outlet ports. A vertical takeoff and landing aircraft is also
provided that includes the flow path splitter duct. A method of using the
same is also provided.