Aircraft cargo door actuation system with first actuator and second actuator

A method of opening a cargo door of an aircraft with an actuation system for the cargo door, the actuation system comprising:

• a first actuator;
• and
• a second actuator:
• the method comprising:
• outwardly rotating, using the first actuator, the cargo door by more than 40 degrees, from a closed position to a first open position;
• then outwardly rotating, using the second actuator, the cargo door from the first open position to a second open position;
• wherein the cargo door covers an opening into a cargo bay when the cargo door is in the closed position;
• and
• wherein the first actuator and the second actuator are not powered simultaneously, such that only one of the first and second actuators operates to move the cargo door at any given time.

An actuation system for a cargo door of an aircraft, the actuation system comprising:

• a rotary actuator configured to outwardly rotate the cargo door between a closed position and a first open position;
• and
• a linear actuator configured to outwardly rotate the cargo door between the first open position and a second open position;
• wherein the linear actuator has:
• a first end coupled to the rotary actuator;
• and
• a second end coupled to the cargo door;
• wherein the rotary actuator is configured to rotate the cargo door between the closed position and the first open position by moving the first end of the linear actuator;
• the linear actuator is configured to rotate the cargo door between the first open position and the second open position by increasing a distance between the first end of the linear actuator and the second end of the linear actuator;
• and
• wherein the cargo door covers an opening into a cargo bay when the cargo door is in the closed position.