Aircraft having landing gear doors and a system for maneuvering the doors

An aircraft comprising:

• a fuselage having an outer skin and a compartment;
• doors connected to the fuselage, wherein the doors have a closed position closing the compartment and contiguous with the outer skin and an open position at which the compartment is open through the outer skin;
• a door maneuvering system comprising:
• an arm pivotably mounted to a lower platform of the fuselage, wherein the arm pivots within a plane parallel to a longitudinal axis of the fuselage;
• an actuating cylinder mounted to an upper platform of the fuselage and having an extendible end region connected to the arm, wherein the actuating cylinder extends to pivot the arm;
• and
• a transmission chain or linkage for each door, wherein each transmission chain or linkage is connected to a respective one of the doors and to the arm, wherein each transmission chain or linkage comprises:
• a relay arm with one end mounted pivotably to the lower platform of the fuselage and an opposite end coupled to a middle section of the transmission linkage.