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An airplane does not instantly recover airspeed lost in a wind shear. That takes time, and it takes a particularly long time when all excess power is being used for climbing. //
It’s common practice in gusty conditions to add some knots to your normal approach or climbing speed. Those knots are often said to be “for grandma”—probably because she was always urging us to be careful—and they seem to come in multiples of five. To be logical about it, we should add airspeed in proportion to the reported gust or wind shear fluctuations. When those numbers are of the same magnitude as the difference between the airplane’s climbing speed and its stalling speed, grandma would become justifiably nervous, and it might be best to honor her by remaining on the ground. If that isn’t possible, favor airspeed over climb rate and, if the nose and airspeed drop at once, push, don’t pull.