Sizing and Analysis of a Lift-Plus-Cruise VTOL Aircraft with Electrified Propulsion Systems

A Review of Novel and Non-Conventional Propulsion Integrations for Next-Generation Aircraft

“…This has been largely boosted by recent technological developments on electric machines for aeronautical applications and by the potential opening of a new air transport market oriented to the movement of few passengers for very short routes, within a typical city environment, and called Urban Air Mobility [285][286][287]. In this context there are many non-conventional integrations between propulsion and airframe, among which the following interesting layouts can be mentioned (Figure 70 gives some examples): (a) multi-rotor [288,289]; (b) tilt-wing [290,291]; (c) tilt-rotor [292,293]; and (d) lift and cruise [294,295]. There are also other airframe-propulsion integrations that are intended to innovate air transport in a radical manner [280]; among these, especially in recent times, much interest is given to the application of the VTOL (Vertical Take-Off and Landing) concept to civil aircraft [281][282][283][284].…”