1 | The aircraft is powered by three jet engines. | |
2 | The Soviet design used heavy jet engines to deliver the power needed for take-off. | |
3 | Scramjets engines can not start until the plane flies faster than the speed of sound. | |
4 | Rhenium (Re): The last of the naturally occurring elements to be discovered, this silvery metal is used in small amounts with nickel in jet engines. | |
5 | The Chinese have been spying on Russian industry for decades, but they still can't make a reliable jet engine. |