11.2 Flashcards
What is a boeing body buttock line known as on airbus aircraft?
The y reference plane which passes vertically through the fuselage
Example sentence: The y reference plane is used to define the body buttock line on Airbus aircraft.
What is a body station measured from?
A reference point in front of the fuselage
Example sentence: Body stations are crucial reference points for measuring various components on the aircraft.
Where are the body waterlines measured from?
A parallel plane below the aircrafts fuselage, body waterline 0
Example sentence: Body waterlines provide important reference points for the aircraft’s design and construction.
What is the wing station on boeing aircraft?
A vertical plane from the intersection of the extended leading edge and the wing buttock line, perpendicular to the rear spar
Example sentence: Wing stations help determine the precise location of wing components on Boeing aircraft.
What is the nacelle buttock line 0 on Boeing aircraft?
Angled inboard of the wing buttock line
Example sentence: The nacelle buttock line 0 plays a crucial role in the design and placement of engine components on Boeing aircraft.
What is the stabiliser chord plane on Boeing aircraft?
A plane through the leading and trailing edge of the stabiliser aerofoil, also known as the horizontal reference plane
Example sentence: The stabiliser chord plane is essential for determining the aerodynamic characteristics of the aircraft’s stabiliser.
Where is the horizontal stabiliser buttock line on Boeing aircraft?
Parallel to the body waterline and perpendicular to stabiliser chord plane
Example sentence: The horizontal stabiliser buttock line helps establish the positioning of the stabiliser relative to the aircraft’s body.
Where is the vertical stabiliser plane on Boeing aircraft?
Perpendicular to the centerline of the vertical stabiliser rear spar, also known as the fin station
Example sentence: The vertical stabiliser plane is crucial for ensuring the stability and control of the aircraft during flight.
How is the rudder station identified on Boeing aircraft?
90 degrees to the rudder hinge centreline
Example sentence: The rudder station plays a key role in determining the movement and control of the aircraft’s rudder.
What are the body coordinates on Airbus aircraft and their respective axis?
X longitudinal axis, Y lateral axis, Z vertical axis
Example sentence: Body coordinates provide a standardized system for locating and measuring components on Airbus aircraft.
What is the correct statement regarding airbus aircraft?
Wing stations are measured perpendicular to Rib 1, and not along the front spar.
Example sentence: The wing stations are crucial for accurate measurements.
Where is the nacelle station 0 on Airbus aircraft?
Wing stations are measured perpendicular to Rib 1 and not along the front spar.
Example sentence: The nacelle station 0 is an important reference point for engine placement.
Where is nacelle station 0 on airbus aircraft?
Aft of body station 0
On Airbus aircraft, how are the stabiliser coordinates indicated?
Only as stations EG: vertical stabiliser station and horizontal stabiliser station
What number is used to indicate major zone lower fuselage?
100
What number is used to indicate the major zone: upper fuselage?
200
What number is used to indicate major zone upper fuselage?
300
What number is used to indicate major zone power plant?
400
What number is used to indicate major zone left wing?
500
What number is used to indicate major zone right wing?
600
What number is used to indicate major zone landing gear?
700
What number is used to indicate major zone doors?
800
How are sub major zones identified?
By the second digit of the number code.
How can you identify which side a component is fitted to in the sub major zone numbering system?
Usually, the right hand side are even numbers and the left hand side are odd numbers
How are aircraft zones indicated?
By the third digit in the number code
What sequence does the numbering normally follow?
Forward to aft, inboard to outboard, bottom to top.
If one aircrafts structural component fails, another component will assume the load of the failed member. What is this called?
Fail safe
If serious damage occurs within the life of the aircraft, the remaining structure can withstand the reasonable loads without failure. What is this design concept known as?
Damage tolerance
Why is recording of fatigue life not necessary for large modern aircraft?
The structural design includes measures to ensure that the airframe will last indefinitely
Which main structural units does the aircraft consist of?
Fuselage, wings, flight control surfaces, stabiliser, and landing gear
Which statement describes a monocoque construction?
Monocoque construction uses formers, frame assemblies, and bulkheads to provide the shape of the fuselage, but the skin carries the primary loads
What is the definition of a longeron?
The main longitudinal members of a fuselage or nacelle
What is the definition of a tie rod?
A member carrying a tensile load
Example sentence: The tie rod is used to connect the control surface to the actuator.
What is the definition of a strut?
A member carrying a compression load.
Example sentence: The strut provides support to the wing structure.