What is the maximum G loading for Flaps Extended?

What is the maximum G loading for Flaps Extended?

• A. 2.0 G
• B. 2.5 G
• C. 1.5 G
• D. 3.0 G

Answer: (A)

Extending the flaps changes how the wing handles loads. Flaps increase lift at lower speeds, but they also change the wing’s structural stress, especially near the flap tracks, so the airplane’s safe operating envelope is tightened. For the CRJ-550 in flap-extended configuration, the positive limit load factor is +2.0 g. That means you should not exceed about 2 g of upward load while the flaps are out, to avoid overstressing the wing. In other configurations, the limit is higher, but with flaps extended it’s reduced to protect the airframe.

Extending the flaps changes how the wing handles loads. Flaps increase lift at lower speeds, but they also change the wing’s structural stress, especially near the flap tracks, so the airplane’s safe operating envelope is tightened. For the CRJ-550 in flap-extended configuration, the positive limit load factor is +2.0 g. That means you should not exceed about 2 g of upward load while the flaps are out, to avoid overstressing the wing. In other configurations, the limit is higher, but with flaps extended it’s reduced to protect the airframe.