Tiltrotor Aircraft having Interchangeable Payload Modules

A tiltrotor aircraft having a vertical takeoff and landing flight mode and a forward flight mode, the aircraft comprising:

• an airframe including a wing having first and second oppositely disposed wing tips;
• first and second tip booms respectively extending longitudinally from the first and second wing tips, the first and second tip booms each having forward and aft ends;
• first and second forward rotors respectively coupled to the forward ends of the first and second tip booms, the first and second forward rotors reversibly tiltable between a vertical lift orientation, wherein the first and second forward rotors are above the respective first and second tip booms, and a forward thrust orientation, wherein the first and second forward rotors are forward of the respective first and second tip booms;
• and
• first and second aft rotors respectively coupled to the aft ends of the first and second tip booms, the first and second aft rotors reversibly tiltable between a vertical lift orientation, wherein the first and second aft rotors are below the respective first and second tip booms, and a forward thrust orientation, wherein the first and second aft rotors are aft of the respective first and second tip booms;
• and
• one of a plurality of payload modules interchangeably coupled to the airframe;
• wherein, each of the plurality of payload modules has a respective function.