After the UK pullout, the USMC and McDonnell Douglas continued to develop the second generation Harrier.  Starved of much BAe and Rolls Royce ingenuity, the changes were modest.  A larger wing with LERX gave better load/range and more maneuverability; modern composite materials lightened the airframe; the Sea Harrier style raised cockpit improved visibility; and and upgraded engine and modern glass cockpit and avionics made the Harrier into a fourth generation fighter.