ComQuest Ventures (CQV) created a tilt-rotor VTOL aircraft called the Vertex in order to study a number of concepts in VTOL design. One of the most exciting evolving niches within unmanned aircraft systems and personal aerial vehicles is that of hybrid Vertical Take-Off and Landing (VTOL) aircraft, which provide a middle ground between the efficiency of fixed-wing aircraft and the practicality of multi-copter aircraft.ĭesigning VTOL aircraft poses unique engineering challenges because of the opposing design requirements of hover and forward flight.