A twinjet is a jet aircraft powered by two engines. There are two common configurations of the engines; one sees either engine slung under a wing, and the other sees them mounted at the back of the fuselage. Twinjets tend to be quieter and more efficient than aircraft with either three or four engines.^{[citation needed]} Many airlines use twinjets exclusively, such as American Airlines, Continental Airlines, and US Airways in the United States.

In the event of an engine failure, the remaining engine must provide enough thrust to keep the airplane in flight until land can be reached. This is the basis of ETOPS/LROPS, a set of standards twinjets traveling over water must meet.

Some twinjets include:

Contents 1 Commercial Airliners 1.1 McDonnell Douglas 1.2 Boeing 1.3 Airbus 2 See also

[edit] Commercial Airliners

[edit] McDonnell Douglas

• McDonnell Douglas DC-9
• McDonnell Douglas MD-80

[edit] Boeing

• 717
• 737
• 757
• 767
• 777
• 787

[edit] Airbus

• A300
• A310
• A320
• A330
• A350

[edit] See also

Look up twinjet in Wiktionary, the free dictionary.

• Trijet
• Wide-body aircraft
• ETOPS/LROPS
• Fuel dumping

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