2 ms·

No, because drag scales with v^2. Going 10% faster requires 21% more power (and thus fuel), but only reduces trip time by 9%.

• moloch-hai 4y ago
  AIUI, drag scales as v³, the reason doubling horsepower adds only a trivial amount of speed.
  • aidenn0 4y ago
    You are both right, there are v^2 and v^3 effects, and depending on the speed regime, one or the other will dominate.
  • AdrianB1 4y ago
    In the pilot books in my country the v2 is the most significant factor, v3 is not even mentioned in General Aviation.