Braking device

A braking device for a flight control system, the flight control system comprising a drive shaft for applying a drive torque to a flight control surface, the braking device comprising:

• a housing component comprising a first braking surface;
• and
• a trolley comprising a second braking surface configured to contact the first braking surface to provide a braking torque,
• wherein the trolley is configured to receive an input torque from the drive shaft, and
• wherein the trolley is configured to apply a contact force between the first and second braking surfaces in response to the input torque;
• wherein the trolley is configured to axially displace in response to the input torque to apply the contact force between the first and second braking surface such that the trolley is axially displaceable between a first and second position, wherein, in the first position, the second braking surface contacts the first braking surface and, in the second position, the first braking surface is spaced from the second braking surface;
• and
• wherein braking device further comprises a bias element, the bias element configured to apply a force to the trolley to axially displace the trolley towards the first position.