The conversation between human and AI assistant.
What is the difference between a Boeing 747 and a 777?
That's interesting. Can you tell me more about the engines used in each aircraft?
The 747 has four engines, typically the Pratt & Whitney JT9D or the General Electric CF6, while the 777 uses either the General Electric GE90 or the Pratt & Whitney PW4000 engines in various models. The engines used in the 777 are more advanced and fuel-efficient than those used in the 747.