If jet aircraft use so much fuel idling/ taxiing, why don't airlines tow them to the runway with a tug?
Quora: Airlines have done experiments with using tugs to save fuel, but the costs were actually greater than the benefits.
[For instance, pilots] do system checks on engine power [as soon as] they're pushed back from the gate. If they wait to do the check at the runway, and something fails, they have to tow it all the way back.
I feel like the benefit would outweigh the cost
And obviously they would be doing it by now if [there was a significant cost saving,] don't you think?
Airlines will got to extremes to save a buck, if it is easily achievable. One thing many did that has saved them close to millions over the last several years is to print in flight magazines in much thinner paper.
Towing planes to the runway, for a HUGE list of reasons, isn't easily achievable.
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