They don't directly interfere with lift. In general aviation aircraft like the Mooney, speed brakes pop up from the wings to disrupt airflow and slow the plane.

“An airplane wing produces lift due to the principles of aerodynamics,” my interlocutor rather tautologically began. It then said that lift is a pressure difference between the upper and lower ...

Airplane wings can bend in bad weather — in some cases up to 17 feet. They're actually designed that way to increase safety and reduce turbulence.

Passengers aboard Delta Air Lines Flight 1893 experienced a harrowing trip on Tuesday when part of the aircraft’s wing broke ...

Unlike spoilers and winglets (curved tips on aircraft wings), speed brakes are used purely to add drag. They don't directly interfere with lift.