DOC AIRBUS | AMM A320FDOORS - RAM AIR TURBINE - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
1. General
The Ram Air Turbine (RAT) compartment has two doors which cover the RAT and its components in the retracted position. The RAT doors are installed on the left side in the belly fairing between FR41 and FR42.
** ON A/C NOT FOR ALL The Ram Air Turbine (RAT) compartment has two doors which cover the RAT and its components in the retracted position. The RAT doors are installed on the left side in the belly fairing between FR41 and FR42.
2. Component Description
The RAT doors are made of a honeycomb core which is bonded between layers of prepreg sheets. The RAT doors have door operating links, P-section seals and piano hinges.
Each RAT door is attached to the RAT leg assembly via the door operating links. One end of the door operating link is connected to the insert assy of the doors. The other end is connected to a lug on the leg assembly.
A P-section seal is attached with screws to each door.
The piano hinges are attached with screws to each RAT door and to the aircraft structure.
The insert assy installed in each RAT door is the pivotal point between the door and the lug of the leg assembly. The insert assy is a movable support.
** ON A/C NOT FOR ALL The RAT doors are made of a honeycomb core which is bonded between layers of prepreg sheets. The RAT doors have door operating links, P-section seals and piano hinges.
Rat Doors 195CBEach RAT door is attached to the RAT leg assembly via the door operating links. One end of the door operating link is connected to the insert assy of the doors. The other end is connected to a lug on the leg assembly.
A P-section seal is attached with screws to each door.
The piano hinges are attached with screws to each RAT door and to the aircraft structure.
The insert assy installed in each RAT door is the pivotal point between the door and the lug of the leg assembly. The insert assy is a movable support.
3. Operation
The RAT doors open with the extension of the RAT. The door operating links push the doors open when the RAT extends. The links also close the doors when the RAT is retracted. The RAT is kept in the compartment with the RAT doors closed, the door operating links keep the doors in the closed position. The P-section seal closes the gap between the doors and the piano hinges let the doors open and close smoothly.
The RAT doors open with the extension of the RAT. The door operating links push the doors open when the RAT extends. The links also close the doors when the RAT is retracted. The RAT is kept in the compartment with the RAT doors closed, the door operating links keep the doors in the closed position. The P-section seal closes the gap between the doors and the piano hinges let the doors open and close smoothly.