Such short flights also spend a large proportion of time on the ground taxiing, etc., where turbofans are very inefficient. They spend incredibly little time at

Such short flights also spend a large proportion of time on the ground taxiing, etc., where turbofans are very inefficient. They spend incredibly little time at their most efficient high-altitude cruise. One can imagine an electric aircraft relying on powered landing gear (as previously trialled by Airbus/Lufthansa Technik) which would further improve efficiency during taxiing.