According to one embodiment, an aircraft features a fuselage, a wing coupled to the fuselage, and a first rotor system. The first rotor system includes a first proprotor system and a first engine. The first proprotor system is coupled proximate to a first wing tip of the wing and is tiltable between a helicopter mode position and an airplane mode position. The first engine is in mechanical communication with the first proprotor system and coupled above the wing, outboard of the fuselage and inboard of the first pylon.