Shares of Caterpillar, the maker of mining and construction machinery, are up more than 30% since year-end, making it the biggest contributor to the Dow Jones Industrial Average. WSJ’s Jonathan Weil ...

With their capability to fly higher, farther, and more efficiently, jet engines have transformed air travel since their introduction. From its origins in the 1930s, the jet engine was a substantial ...

If you’ve ever watched or been on an aircraft sitting on the runway, you might notice the engines begin to hum and spin just before the plane moves. This process is called spooling up, and it’s a ...

A hybrid-electric jet engine may seem as absurd as a horse-drawn Zeppelin, but GE Aerospace is ground testing a new megawatt-class hybrid turbofan engine and its full powertrain that is powerful ...

Car engines and jet engines have almost nothing in common, other than the purpose of making a vehicle move forward. The fuel is different, the average speeds are not even in the same ballpark, and the ...