The advantages include:

• Low costs throughout the aircraft life cycle: design, manufacturing and maintenance
• Accomplishes VTOL flight like the tilt-rotor/tilt-wing concepts, but with a much simpler, lighter and less expensive system.
• Not over-sensitive to c.g. changes; can load fuselage differently for different missions.
• With low or zero landing speeds, landing accidents and their damage will be minimized.
• With low or zero landing speeds, landings are much more amenable to automated flight controls. No need for highly experienced flight personnel.
• Is inherently more survivable than conventional UAVs.
• Transition from vertical to horizontal flight is intrinsically stable, since the freewings and the Tilt-Boom of the Spirit will automatically adjust themselves throughout the transition process to constantly maintain the ideal distribution of lift between them.
• The freewings will not stall during transition – for other thrust-vectored systems one of the most common accident modes.
• Provides a more efficient aircraft since swept area of the propeller can be increased and the wing sized for operational efficiency rather than design landing speeds.
• Provides a platform that, compared to the rigid wing-based systems of the tilt-wing, tilt rotor, stop-rotor, etc., will be inherently stable, a requirement for the videos and similar sensors that are the raison d’être of the UAV. In particular, since rigid-wing UAV’s (including tilt-rotor vehicles) provide a relatively rough ride in response to turbulence, they must incorporate stabilization systems cradling the cameras in a gimballed apparatus that typically costs more than the entire airframe. The Spirit, by contrast, will require simpler – therefore less expensive and lighter – camera stabilizers.
• The Spirit is “mission capable” and able to operate effectively in gusty conditions that might ground many fixed wing aircraft, including tilt-rotor UAVs.