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Multiple Choice

Jets shall maintain what knots until VMC on top?

Maintaining a high, safe airspeed until you have true VMC on top gives you a reliable energy state and maneuver margin as you penetrate or transition through the weather. Keeping 400 knots ensures you have enough control authority to handle gusts, wind shear, and rapid weather changes, while staying well clear of stall and within structural limits. It also helps with traffic separation when in the IMC-to-VMC transition. Once you actually have VMC on top, you can adjust to the appropriate operating speed for the next maneuver or segment.

Maintaining a high, safe airspeed until you have true VMC on top gives you a reliable energy state and maneuver margin as you penetrate or transition through the weather. Keeping 400 knots ensures you have enough control authority to handle gusts, wind shear, and rapid weather changes, while staying well clear of stall and within structural limits. It also helps with traffic separation when in the IMC-to-VMC transition. Once you actually have VMC on top, you can adjust to the appropriate operating speed for the next maneuver or segment.