What is the flight load factor with flaps down?

What is the flight load factor with flaps down?

• A. +3.5g
• B. +4.4g, -1.76g
• C. +2.0g
• D. -1.76g

Answer: (A)

Flight load factor is the lift-to-weight ratio the airframe must support, expressed in g. The flap setting changes how the wing behaves: extending flaps increases lift at a given speed, but certification limits are adjusted for that configuration. For the flap-down configuration, the maximum permissible positive load factor is +3.5 g, so that is the highest load the structure is certified to carry during maneuvers with flaps deployed. This is why +3.5 g is the best answer. Values like +4.4 g would exceed the flap-down limit, a negative value represents downward loading rather than the allowable positive gust/might-maneuver load, and a lower positive value such as +2.0 g would not reflect the official limit for this configuration.

Flight load factor is the lift-to-weight ratio the airframe must support, expressed in g. The flap setting changes how the wing behaves: extending flaps increases lift at a given speed, but certification limits are adjusted for that configuration. For the flap-down configuration, the maximum permissible positive load factor is +3.5 g, so that is the highest load the structure is certified to carry during maneuvers with flaps deployed. This is why +3.5 g is the best answer. Values like +4.4 g would exceed the flap-down limit, a negative value represents downward loading rather than the allowable positive gust/might-maneuver load, and a lower positive value such as +2.0 g would not reflect the official limit for this configuration.