This is a "common reference model" from Uber not for manufacture. It shows some technology Uber recommends its airframer partners to use for their aircraft. This includes stacked co-rotating rotors that can retract to reduce drag during forward flight. Tom Risen / FlightGlobal Urban air mobility ridesharing could alleviate traffic congestion in Melbourne and other cities by allowing passengers to book short flights between landing pads that Uber calls skyports. With congestion estimated to cost Australia around $30 billion by 2030, Australian officials have encouraged Uber to offer aerial ridesharing in the Melbourne area, says Kate Fraser, head of aviation policy at Uber Elevate. "Having that support from the local community is huge, which will make it easier when we start to do community engagement," Fraser says of the process of building public awareness and gaining feedback for aerial ridesharing.