Patent ID: 9718535
Date: 2017-08-01
CPC Classifications: B64C

Claim:
1. An aircraft comprising: a fuselage; a trimmable horizontal stabilizer in a rear zone of the fuselage, the trimmable horizontal stabilizer is actuated by a trimming actuator; the trimmable horizontal stabilizer comprising a load-bearing structure extending in a span direction; the load-bearing structure having a portion disposed inside the rear zone of the fuselage that includes at least one pivot element coupled to a pivoting device configured to rotate about a lateral axis and a connection fitting connected to the trimming actuator; wherein: the rear zone of the fuselage comprises at least a first section, and a second section, aft of the first section, wherein the first section of the rear fuselage comprises a bulkhead having the pivoting device coupled to the at least one pivot element of the trimmable horizontal stabilizer; said portion of the load-bearing structure and said trimming actuator are disposed inside the second section of the rear zone of the fuselage; the at least one pivot element is mounted on a forward side of said portion of the load-bearing structure and coupled to the pivoting device on the bulkhead of the first section of the rear zone of the fuselage; the connection fitting is mounted on a rearward side of said portion of the load-bearing structure and is connected to the trimming actuator which is disposed to exert a force in a Z-axis direction of the aircraft via the connection fitting during a trimming operation; and a supporting structure for the trimming actuator is in the second section of the rear zone of the fuselage and is arranged to transmit trimming actuator loads from the trimming actuator to the first section, wherein the supporting structure of the trimming actuator comprises upper and lower longitudinal beams joined to the bulkhead of the fuselage and extending to a position aft of the connection fitting, and a vertical beam joined to rear ends of the upper and lower longitudinal beams.