modal777Variant: LaunchFirst flht: Production end : Boeing 777-200: 1990 1994: Production: 25 (2019) Deliveries, all 777F. Initial production variant (no longer marketed), now produced asThe new 777X will be the world’s largest and most efficient twin-engine jet, unmatched in every aspect of performance. With new breakthroughs in aerodynamics and engines, the 777X