Yet the Airbus A330 continues to defy that narrative. Specifically, neo stands for "new engine option" and encompasses the Airbus A330-800 and Airbus A330-900. The resulting A330neo aircraft is very similar to the A330ceo, with nearly 95% of the parts identical across both aircraft. Performance Comparison of A330neo to Other Aircraft Aircraft A330-900 (neo) A330-300 (ceo) 767-300ER Range (nautical miles) 8,285 6,340 5,980 Max. Rolls-Royce Trent 7000 Engine Overview Metric Value Length (inches) 188 Diameter (inches) 112 Max.