In addition to the 34 aircraft commitment from Lufthansa in September 2013, Boeing received orders and commitments at the Dubai Airshow for 150 aircraft from Emirates, 25 aircraft from Etihad Airways, and 50 aircraft from Qatar Airways [REF].
The 777X program includes two variants: the 777-9, which is stretched beyond the length of the 777-300ER, and the 777-8, which is sized close to the 777-300ER but with ultra-long range capability [REF].