Airplane Nomencature Flashcards
Vertical axis refers to what?
Yaw
Longitudinal axis refers to what?
Roll
Lateral axis refers to what?
Pitch
Pitch is described as:
Motion around the lateral axis
Yaw is described as:
Motion around the vertical axis
Roll is described as:
Motion around the longitudinal axis
Primary Structure
Structure that if failed would cause loss of the aircraft
Secondary Structure
Structure that failure would not cause loss of the aircraft
Fuselage
Center load carrying portion of the aircraft
Empennage
Aft structure of the aircraft that includes the vertical & horizontal stabilizers
Horizontal Stabilizer
Aft lifting surface that trims the aircraft pitching movement
Vertical Stabilizer
Aft surface that gives the aircraft directional stability
Dihedral
Angle of the wing from wing root to tip, provides stability
Flap
Wing trailing edge devise that adds lift and drag when extended
Aileron
Control surface on the wing trailing edge that gives roll control
Elevator
Control surface on the trailing edge of the horizontal stabilizer that gives pitch control
Rudder
Control surface on the trailing edge of the vertical stabilizer that gives directional control
Elevon
Control surface that combines the function of the elevators and the ailerons
Ruddervator
Control surface that combines the function of the rudder and the elevator
Flaperon
Control surface that combines the function of the flaps and ailerons
Canard
A lifting surface that trims the pitching movement of the aircraft
Span
A dimension along the length of the wing
Chord
Line drawn from the wing leading edge to the trailing edge
Leading edge
Forward most part of the wing
Trailing edge
Aft most part of the wing
Wing Root
Thickest portion of the wing, next to the fuselage
Wing tip
Outboard most part of the wing
MAC
Mean aerodynamic chord, the average length of the leading and trailing edges of the wing averaged lengthwise.
Fuselage Station
A measurement point along the longitudinal axis of the aircraft
Wing Station
A measurement along the lateral axis with the center of the aircraft as 0
Wing Carry Through
Wing structure that carries the stresses through the fuselage
Main Landing Gear
Gear that supports the major weight of the aircraft
Nose landing gear
Fwd gear on a tricycle landing gear aircraft
Spar
Major structural element of the wing that runs span wise
Rib
Wing reinforcing structure that runs cord wise
Longeron
Fuselage structural member that runs lengthwise on the fuselage
Frame
Fuselage structure that runs laterally on the aircraft
Skin
the outer shell of the aircraft
Stringers
Structural members that attach to the skin and run lengthwise on the aircraft fuselage
Radome
Shell at the front of the aircraft that houses the radar antenna
Engine Pylon
Structure to support the engines
Engine Nacelle
Structure that gives wing mounted engines their aerodynamic shape
Spoilers
Secondary flight control surface that destroys lift
Fairing
Non load bearing structure that provides aerodynamic shape
