Rotor brake

A brake unit for braking a rotor disc, said rotor disk rotatable about a central axis of rotations the unit comprising:

• a first brake pad mounting means having a first end and a second end and a longitudinal outer, side, surface extending there between, wherein a first brake pad is provided at said first end of said first brake pad mounting means and positioned facing a first face of said rotor disc, and wherein said first brake pad mounting means comprises a first brake pad locking feature provided on its said outer, side, surface;
• first locking means configured to pivot about a pivot axis, the first locking means being configured to be movable about said pivot axis so that a locking feature of said locking means can come into contact with, or be moved away from said outer, side, surface of the first brake pad mounting means,
• wherein, in a first position, said first locking means is configured to be in contact with and engaged with said first locking feature, thereby preventing movement of said first brake pad towards said face of said rotor disc, and
• wherein, in a second position, said first locking means is configured to be disengaged from said locking feature to thereby permit movement of said braking pad towards said face of said rotor disc;
• a first spring for biasing the locking means to the first position;
• and
• a second spring configured to bias the brake pad away from the rotor disc.