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A wing at one-tenth of its span above the ground has its induced drag cut by about how much?

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  1. About 5 percent
  2. About 48 percent
  3. About 24 percent

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References

  1. PHAK ch 5, Aerodynamics of Flight (FAA-H-8083-25C) www.faa.gov/sites/faa.gov/files/07_phak_ch5_0.pdf Checked 2026-10-11.
  2. PHAK ch 5, Aerodynamics of Flight (FAA-H-8083-25C) www.faa.gov/sites/faa.gov/files/07_phak_ch5_0.pdf Checked 2026-10-11.
  3. PHAK ch 5, Aerodynamics of Flight (FAA-H-8083-25C) www.faa.gov/sites/faa.gov/files/07_phak_ch5_0.pdf Checked 2026-10-11.

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