30W interesting point. Higher speeds would presumably reduce flight times, how do the costs/ benefits balance up?
Looking at say Ryanair or Astreus as examples, they are flying faster so presumably reducing journey times and increasing the chance of the next departure being on time whereas other operators (GB/Easyjet to name two) fly more slowly and save fuel.
Do the 'faster' operators feel the benefits outweigh the costs or do you think they don't consider the cost index enough?
Just curious, I have no preference either way.