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by octopaulus
1792 days ago
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The article didn't make mentions of commercial flights. The cool thing about electric drivetrains is that you can put this specific plane motor in a train... A GE90 is not a rocket engine, nor anything else. Electric powertrain densification, wether electrical, mechanical or electromechanical is a good thing for everybody on earth, similarly to how planes have allowed alot of us to go anywhere. Electric scooter, cars and bikes are helping millions get places reliably, quickly and economically with a clear advantage |
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Because clearly the railroad industry has been sitting around twiddling its thumbs going "man, how on earth could we make the electric motors we've been using for a century or so, better?"
Clearly an electric motor designed for coupling to a turbine or propeller at significant rotational speeds with low/no starting torque, typical lithium ion battery pack voltages, and optimized at great cost for weight....has relevancy for a train where weight and size don't matter, there may be almost zero airflow, the motor often needs to provide massive amounts of starting torque, etc.
The railroad industry uses multiple types of electric motors for different applications. The resources companies like Siemens have in refining railway and industrial motors are far greater. The notion that they need a bunch of morons developing a one-off speed record airplane to help them improve their motor tech is absurd.
"A GE90 is not a rocket engine, nor anything else. "
And what do you suppose the GE LM9000 is? Answer: the aeroderivative gas turbine version of the GE90. Aeroderivative turbines are used extensively in electric power generation and naval power applications.
Please stop talking.