Nord Aviation’s N.500 Cadet was built around twin rotating ducted fans designed to shift from vertical lift to fast forward flight, promising a different approach to VTOL than helicopters. The project ...

After a decade of work, XTI has reduced spending on the ducted-fan VTOL TriFan 600 to the lowest practical level. Credit: XTI Aerospace The long saga of XTI Aerospace’s effort to develop a ducted-fan ...