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Without using complex mathematics, please explain why best range airspeed is less than normal cruise airspeed.

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closed as too broad by fooot, SMS von der Tann, Sean, Carlo Felicione, xxavier Jan 29 at 6:50

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

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    $\begingroup$ Welcome to aviation.SE! This question might be helpful. You might also like to check out the tour if you're new to the site. $\endgroup$ – Pondlife Jan 29 at 2:03
  • $\begingroup$ I thought it was a good question. Can you provide an example of how you might rephrase this to be more specific? $\endgroup$ – Michael Hall Jan 29 at 17:05
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Normal cruise is a compromise between being fuel efficient while getting to your destination at a reasonable speed. It all comes down to drag; the faster you go the more parasitic drag you pick up and economy suffers.

Just like in your car - if you wanted to squeeze max efficiency (range) out of a trip you could drive at 55mph on the freeway. In fact you could even make it law! But, people are generally willing to burn a little more fuel to get there faster.

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    $\begingroup$ Also in commercial operation, the crew is paid by the hour and flying faster also means flying more miles each day and that means more revenue. $\endgroup$ – Jan Hudec Jan 29 at 6:25
  • $\begingroup$ Yes, good point Jan! $\endgroup$ – Michael Hall Jan 29 at 17:17

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