Systems and methods for landing gear actuation via trunnion drive

A landing gear actuation system, comprising:

• a trunnion sprocket coupled to a movable member;
• a first motor configured to move a flexible drive member;
• a second motor configured to move the flexible drive member;
• a flexible drive member coupled to the trunnion sprocket and the first motor, wherein movement of the flexible drive member moves the trunnion sprocket and the movable member;
• a first brake coupled between the first motor and a plurality of planetary reduction gears;
• and
• a second brake coupled between the second motor and the plurality of planetary reduction gears.

A landing gear for an aircraft, comprising:

• a trunnion configured to be rotatably mounted to an aircraft structure;
• a landing gear assembly having a main strut mounted to the trunnion;
• a wheel assembly coupled to the main strut of the landing gear assembly;
• and
• an actuation system configured to extend and retract the landing gear, the landing gear is configured to rotate about the trunnion in response to the actuation system at least one of extending and retracting the landing gear, the actuation system including:
• a trunnion sprocket coupled to the main strut, the trunnion sprocket is concentric with the trunnion;
• a first motor configured to move the landing gear assembly;
• and
• a flexible drive member extending between and to the trunnion sprocket and the first motor.