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In principle yes.

However, there are practical reasons which stand against this:

  • The flap mechanism is already very complex with only 40° of deflection. Going further would make it even more complex and heavier. Spoilers, on the other hand, have a very simple mechanism: A simple hinge and hydraulic actuators are all that is needed.
  • By sitting closer to the middle of the airfoil, spoilers have less of a pitch effect than flaps would have when fully deployed as indicated in your question.

But there are already flaps which double as spoilers: One would be the mechanism used on several Glasflügel gliders (see picture), and another example would be the flap on the center wing of the SB-10 glider.

Glasflügel flap-and-spoiler combination

Glasflügel flap-and-spoiler combination. The top left view shows the position in flight, the middlebottom left view shows the approach position and on the bottomright shows the maximum deployment for highest drag. Note that the upper flap part compensates the pitching moment of the main flap and that no lift loss is incurred when the flap is fully deployed.

In principle yes.

However, there are practical reasons which stand against this:

  • The flap mechanism is already very complex with only 40° of deflection. Going further would make it even more complex and heavier. Spoilers, on the other hand, have a very simple mechanism: A simple hinge and hydraulic actuators are all that is needed.
  • By sitting closer to the middle of the airfoil, spoilers have less of a pitch effect than flaps would have when fully deployed as indicated in your question.

But there are already flaps which double as spoilers: One would be the mechanism used on several Glasflügel gliders (see picture), and another example would be the flap on the center wing of the SB-10 glider.

Glasflügel flap-and-spoiler combination

Glasflügel flap-and-spoiler combination. The top view shows the position in flight, the middle view shows the approach position and the bottom shows the maximum deployment for highest drag. Note that the upper flap part compensates the pitching moment of the main flap and that no lift loss is incurred when the flap is fully deployed.

In principle yes.

However, there are practical reasons which stand against this:

  • The flap mechanism is already very complex with only 40° of deflection. Going further would make it even more complex and heavier. Spoilers, on the other hand, have a very simple mechanism: A simple hinge and hydraulic actuators are all that is needed.
  • By sitting closer to the middle of the airfoil, spoilers have less of a pitch effect than flaps would have when fully deployed as indicated in your question.

But there are already flaps which double as spoilers: One would be the mechanism used on several Glasflügel gliders (see picture), and another example would be the flap on the center wing of the SB-10 glider.

Glasflügel flap-and-spoiler combination

Glasflügel flap-and-spoiler combination. The top left view shows the position in flight, the bottom left view shows the approach position and on the right shows the maximum deployment for highest drag. Note that the upper flap part compensates the pitching moment of the main flap and that no lift loss is incurred when the flap is fully deployed.

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In principle yes.

However, there are practical reasons which stand against this:

  • The flap mechanism is already very complex with only 40° of deflection. Going further would make it even more complex and heavier. Spoilers, on the other hand, have a very simple mechanism: A simple hinge and hydraulic actuators are all that is needed.
  • By sitting closer to the middle of the airfoil, spoilers have less of a pitch effect than flaps would have when fully deployed as indicated in your question.

But there are already flaps which double as spoilers: One would be the mechanism used on several Glasflügel gliders (see picture), and another example would be the flap on the center wing of the SB-10 glider.

Glasflügel flap-and-spoiler combination

Glasflügel flap-and-spoiler combination. The top view shows the position in flight, the middle view shows the approach position and the bottom shows the maximum deployment for highest drag. Note that the upper flap part compensates the pitching moment of the main flap and that no lift loss is incurred when the flap is fully deployed.