What is the Max Flap Extended Altitude?

What is the Max Flap Extended Altitude?

• A. 12,000'
• B. 22,000'
• C. 18,000'
• D. 16,000'

Answer: (C)

Max flap extended altitude is the highest height at which you’re allowed to keep the flaps in the extended position. Flaps increase lift at lower speeds, but as you climb, air gets thinner and the effectiveness of the flaps—and the margins for safe flight—diminish. The airplane’s certification and operating limitations specify a ceiling for flap extension, so above that altitude the flaps must be retracted to the clean configuration to ensure safe handling and structural limits are not exceeded. For this item, the maximum allowed altitude with flaps extended is 18,000 feet, so you should not have flaps in the extended position above that altitude. The other numbers aren’t the published limit for this aircraft.

Max flap extended altitude is the highest height at which you’re allowed to keep the flaps in the extended position. Flaps increase lift at lower speeds, but as you climb, air gets thinner and the effectiveness of the flaps—and the margins for safe flight—diminish. The airplane’s certification and operating limitations specify a ceiling for flap extension, so above that altitude the flaps must be retracted to the clean configuration to ensure safe handling and structural limits are not exceeded. For this item, the maximum allowed altitude with flaps extended is 18,000 feet, so you should not have flaps in the extended position above that altitude. The other numbers aren’t the published limit for this aircraft.