A landing gear (10) for an aircraft having a main fitting (12) arranged to be coupled to the aircraft and arranged to move between a stowed condition and a deployed condition and a trailing arm (14) movably coupled to the main fitting (12). A torsion spring (24) is coupled to the trailing arm (14) such that the movement of the trailing arm (14) causes torsion loading of the torsion spring (24). A stay assembly (24,26) is provided which comprises the torsion spring (24), the stay assembly (24,26) having a first condition in which it is arranged to react axial loading thereof so as to maintain the main fitting (12) in the deployed condition and a second condition in which it is arranged to permit the main fitting (12) to move between the stowed condition and the deployed condition.