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View Diary: Green Transit and Hybrids: Planes, Trains, and Automobiles (27 comments)

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  •  If you are talking about propeller airplanes (0+ / 0-)

    then, yes you can.  There has been some testing with small scale airplanes, but nothing that would work on something like a large commercial plane.  

    The problem is, for large scale flights, you need jet engines, and there is no way to make an electric jet engine - at least I have never heard another engineer talk about it, or read about anything.  I will admit I focus more on space as an aerospace engineer, but I do keep my eyes open, and no one is even considering this.  

    And I suspect its because there is no practical way t do something like this - jet engines require something be spit out the back, to give you thrust, which moves you forward (think about it like you are in a boat, on water, and you through a basketball - you travel in the opposite direction).  You need something that can super heat the air, and then have it go out the back end - the only non-chemical method that I have ever seen was a proposed nuclear engine, that spit out radioactivity

    As I said, your best bet is trying to find carbon neutral fuels.  

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