Aircraft assembly

An aircraft assembly comprising:

• an aircraft structure;
• a pipe assembly;
• and
• a fixture arrangement attached to the aircraft structure, the fixture arrangement contacting the pipe assembly via a curved bearing surface having curvature in two orthogonal directions, wherein the curved bearing surface is configured to enable the pipe assembly to rotate relative to the fixture arrangement about three perpendicular axes, and
• a stop member adjacent the fixture arrangement, wherein a contact surface of the stop member is configured to abut a contact surface of the fixture arrangement to restrict axial movement of the pipe assembly relative to the fixture arrangement,
• wherein a gap between the contact surface of the fixture arrangement and the contact surface of the stop member increases radially from the longitudinal pipe axis, and
• wherein the stop member is formed of two or more parts that interconnect circumferentially.

An aircraft assembly comprising:

• an aircraft structure;
• a pipe assembly;
• a fixture arrangement attached to the aircraft structure, the fixture arrangement contacting the pipe assembly via a curved bearing surface having curvature in two orthogonal directions, wherein the curved bearing surface is configured to enable the pipe assembly to rotate relative to the fixture arrangement about three perpendicular axe, and
• a stop member adjacent the fixture arrangement, wherein a contact surface of the stop member is configured to abut a contact surface of the fixture arrangement to restrict axial movement of the pipe assembly relative to the fixture arrangement;
• wherein a gap between the contact surface of the fixture arrangement and the contact surface of the stop member increases radially from the longitudinal pipe axis;
• wherein the pipe assembly comprises a second stop member adjacent the fixture arrangement such that the fixture arrangement is between the first and second stop members,
• wherein a contact surface of the second stop member is configured to abut a second contact surface of the fixture arrangement to restrict axial movement of the pipe assembly relative to the fixture arrangement, and
• wherein a gap between the contact surface of the fixture arrangement and the contact surface of the second stop member increases radially from the longitudinal pipe axis.