Why are the A330 engines so small?

The A330 engine diameter is smaller for two reasons, each contributes similarly to the difference. The A330 is significantly smaller / lighter aircraft than a B777. The B777 cruises at a faster speed also. At the same time, the B777 engine has around 9:1 bypass ratio, while the A330 has a 5:1 bypass ratio.



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This is a reflection to its outstanding efficiency and reliability, as well as it is superior capability and versatility. The Trent 700 is the engine of choice on the Airbus A330 family with over 800 aircraft in service.

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The A350 is on average up to 6 dB quieter on departure than the A330 and 777, and up to 9 dB quieter than the A340.

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Cabin comfort and The A330's modern cabin enables the installation of Airbus-standard wide seats that bring a high level of comfort and relaxation to long-haul flights – even in economy.

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Originally Answered: Why does the A380 has 4 engines? Because it is a BIG aircraft which needs a LOT of power to push it through the air. Each engine manages to put out anything from 70,000 Lbs of thrust to 84,000 Lbs of thrust.

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The main selling point of the A340 was its four engines, not necessarily its increased capacity or range. Airbus would return later to the high capacity model later with the A380. Having four engines enabled it to operate longer over-water flights, something for which the A330 was restricted.

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It can fly until it runs out of fuel. Basically, these planes are built to fly as well on one engine as they can on two. Having just one engine operating means you won't have the maximum thrust power for take off, but you'd be able to fly and land just fine.

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However, the new Upper Class seats on the A330-900 and A350 are simply fantastic and hands down my favorite way to cross the Atlantic. You can easily see which plane is flying your route by clicking the “Details” button when you search for flights on the Virgin Atlantic website.

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However, if a pilot has initially conduct an A330 course, in order to fly the A350 would need to conduct a A330 to A350 Differences Training. Note: The A330 is a common Type Rating with the A350. Therefore, when a pilot gets qualified on either aircraft, the endorsement on his/her licence is A330/350.

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Modern aircraft with two engines flying transatlantic (the most common models used for transatlantic service being the Airbus A330, Boeing 767, Boeing 777 and Boeing 787) have to be ETOPS certified.

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Turbulence isn't any milder on the A330. It's just different. Because I know there's at least one of you who wanted to see how much larger the A330 toilet is compared to the 777. Basically, if you have to use the lavatory in rough air, it'll be less messy on the A330!

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Indeed, the overall length of the 787-8 is roughly two meters (or 6 and a half feet) shorter than its Airbus counterpart. According to modernairliners.com, the Dreamliner's maximum cabin width is 5.49 Meters (18 Feet), compared to 5.26 m (17 ft 3 in) for the A330.

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