Why Are Airplane Engines So Big
- Episode aired Apr 11, 2016
- 2m
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Big airline jet engines move lots of air but not very fast. That's OK since airliners don't need to go all that fast like a fighter jet. So they save lots of energy by not generating hyperso... Read allBig airline jet engines move lots of air but not very fast. That's OK since airliners don't need to go all that fast like a fighter jet. So they save lots of energy by not generating hypersonic exhaust. Energy means fuel. And fuel savings is good for the environment and for the a... Read allBig airline jet engines move lots of air but not very fast. That's OK since airliners don't need to go all that fast like a fighter jet. So they save lots of energy by not generating hypersonic exhaust. Energy means fuel. And fuel savings is good for the environment and for the airlines' bottom line.