Fourth Boeing 777X Test Aircraft Takes Flht Again - FLYING

777zxBoeing has reactivated its fourth 777X testbed aircraft, desnated WH004, marking its return to flht operations for the first time since late 2021. The aircraft took off from Paine777-8. 365,150-kg (805,000-lb) MTOW 395 two-class passengers. 777-9. 351,550-kg (775,000-lb) MTOW 426 two-class passengers Standard rules 50% annual winds