In flight with flaps up to 2, spoiler deflection is what angle?

In flight with flaps up to 2, spoiler deflection is what angle?

• A. 25°
• B. 35°
• C. 45°
• D. 60°

Answer: (B)

Spoilers in flight are kept at a moderate deflection to provide lift reduction and some drag without compromising stability or control. When flaps are set to a shallow position (up to 2), the spoiler panels are commanded to 35 degrees. This angle strikes a balance: it reduces lift enough to aid speed control and deceleration, while preserving sufficient wing stability and elevator authority for normal flight. Using a smaller angle, like 25 degrees, would give less lift loss and slower deceleration; using a larger angle, such as 45 or 60 degrees, would dump too much lift and can make handling awkward or exceed structural/trim limits in the air. Ground spoilers, by contrast, can deploy farther (around 60 degrees) because their primary goal is maximum lift dump with weight on wheels.

Spoilers in flight are kept at a moderate deflection to provide lift reduction and some drag without compromising stability or control. When flaps are set to a shallow position (up to 2), the spoiler panels are commanded to 35 degrees. This angle strikes a balance: it reduces lift enough to aid speed control and deceleration, while preserving sufficient wing stability and elevator authority for normal flight. Using a smaller angle, like 25 degrees, would give less lift loss and slower deceleration; using a larger angle, such as 45 or 60 degrees, would dump too much lift and can make handling awkward or exceed structural/trim limits in the air. Ground spoilers, by contrast, can deploy farther (around 60 degrees) because their primary goal is maximum lift dump with weight on wheels.