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Are 4-engine planes safer than 2-engine planes?

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Yes, a four-engine aircraft is safer than a two-engine aircraft in general because of higher redundancy. Two-engine aircraft used to be prohibited from transoceanic flights for that reason. read more

Both arrangements are just as safe but Airbus' A340 is an advantage over the 777 because the CFM56 has a smaller diameter than a rolls royce trent or a GE90-115B, so if an engine fails then the A340 would be safer because it creates less drag, So for me the safer choice would be the four engined planes. read more

the Boeing 777 and the Airbus A340 - not against the 550-seats Airbus A380. read more

A 4 engined aircraft is slightly safer than a 2 engined one. But a 2 engined one is not “very risky”. Copious statistics have shown that 2 engined aircraft are very, very safe. read more

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