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Which time of day gives the smoothest low level flying?

  • A.Around noon, when the thermals are most vigorous and therefore most regularly spaced across the whole area
  • B.Early morning before the convective layer develops
  • C.Mid-afternoon, when the mixing has become deep enough for the turbulence to be evenly distributed through it
  • D.Late evening

Answer: B

The nocturnal stable layer persists until surface heating begins to erode it, so the hours around dawn offer the smoothest conditions at low level. Glider pilots wait for the opposite conditions in the afternoon. Late evening can also be smooth once the convection has decayed, which makes that a reasonable secondary answer.

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