Lecture 6 Flashcards
What is the fuselage?
French for…?
The body of the aircraft
Spindle shaped
What is the empennage?
French for…?
The whole tail assembly
To feather an arrow
What is the nacelle?
The engine and mounting location
What part of the aircraft provides the majority of lift required for flight?
Wings
What is the landing gear used for?
To absorb the impact of the landing
What is a former?
Placed in a fuselage to give shape and rigidity
What is a stringer?
Braces placed between ribs or formers to give strength to the wing or fuselage
Stringer = Short Stiffener
What is a longeron?
A structural stiffener stretching the entirety of the fuselage
Longeron = Long Stiffener
What is the skin?
The outer layer of the airplane
What is a bulkhead?
A vertical wall within the fuselage
What is a firewall?
A special bulkhead that goes between the engine and the fuselage or wing
What do the following words mean?
Starboard
Port
Forward
Aft
Starboard: right side
Port: left side
Forward: toward the front of the aircraft
Aft: toward the back of the aircraft
What is the fuselage station?
Where is this located?
Where do measurements start? End?
Datum (Station 0.0)
Anywhere the designer wishes, typically front of the aircraft
Start at the nose and go to the tail
What is the wing station?
Horizontal distance in inches from the centerline (butt line) of the fuselage to the wing tips
What is span?
Lateral distance from wing tip to wing tip
What is the waterline station?
Vertical distance in inches from the centerline (butt line) of the fuselage
Dorsal Fin vs Ventral Fin
Dorsal: on top of the aircraft, in front of the vertical stabilizer
Ventral: on the bottom of the aircraft
What do you call a plane with one wing per side?
Two?
Three?
Monoplane
Biplane
Tri-plane
What are the ribs?
Structural members that give the wing its shape
What is the spar?
Structural, load carrying beam in the wing
What are winglets?
What is their purpose?
A bend in the wing tip
Reduce drag (wing tip vortexes)
What are the four types of landing gear?
Conventional (tail wheel)
Tricycle (nose wheel and main gear)
Bicycle (main landing gear in the center of the aircraft)
Quadricycle (four main gear sets in the center of the aircraft)
List pro(s) and con(s) for conventional landing gear
Pros:
Strong
Light
Low drag
Cons:
Hard to land
Poor visibility when taxiing
List pro(s) and con(s) for tricycle landing gear
Pros:
Easy to land
Good visibility when taxiing
Cons:
Nose wheel breaks easily
Adds weight
Adds drag
List pro(s) and con(s) for bicycle landing gear
Pros:
Takes landing loads away from wings
Reduces structure weight needed to support landing gear
Cons:
Wheels at wingtips are delicate
Adds mass to wing tips and reduces maneuverability
List pro(s) and con(s) for quadricycle landing gear
Pros:
Takes landing loads away from wings
Reduces structure weight needed to support landing gear
Lowers fuselage’s lower deck heigh
Cons:
Adds weight
What is main landing gear?
What is auxiliary landing gear?
Support most of the weight of the aircraft
Stabilize the aircraft and support less weight
Where is the GPS antenna mounted?
Why?
On top of the aircraft
GPS satellites are in space
What are longer antennas used for?
Radio communication and navigation
What are shorter antennas used for?
Higher frequency data
