First 2 Weeks Flashcards
What uses Cable Operated Systems
Low speed general aviation
What material is used for cables in cable operated systems
Steel
How do cable and hydraulic systems interact in Boosted Cable Systems
Parallel to each other
What is the boost ratio on Boosted Cable Systems
14:1
What does a Primary Stop do
Limits Flight controls at the surface of the Flight Control
What does a Secondary stop do
Limits Flight controls at the Control Column in the cockpit
What powered system is completely hydraulic
Hydraulic power operated system
What power operated system needs artifical feel
Hydraulic powered operated system
How is non proportional feedback given to pilot on Hydraulic Power Operated Systems
Springs
How is proportional feedback given to pilot on Hydraulic Power Operated Systems
Q pots
What system is irrevrisble
Hydraulic Power Operated System
What do torque tubes do
Transmits torionsal force between actuating control and the device being controlled
What is fly by wire
Using electrical wires instead of cables in an aircraft
What does LVDT stand for
Linear Variable Displacement Transfuser
What does RVDT stand for
Rotary Variable Displacement Transfuser
What is fly by light
Uses fiber optic cables instead of steel cables
What is EMI
Electro Magnetic Interference
What is Roll and Yaw trimming for
Is used to adjust aircraft to fly straight hands free
How is Pitch trimming done
Adjusting Leading edge of horizontal stabiliser / THS
What is mach trim
In modren aircrafts
Compensates for aerodynamic pitch down tendency at high speeds
Done by adjusting THS
What do Trailing Edge Flaps do
Increase Camber or Increase Camber and area
What do leading edge flaps do
Allows for a higher AOA
Decreases takeoff and landing distance
What are the positions of a Leading Edge Flap
Extended and Retracted
When are slats retracted
Cruise
When are slats in the intermediate setting
Takeoff
When are slats extended
Landing
What are the two types of Spoiler
Flight and Ground
When can ground spoilers be used in flight
Never
What is the center of gravity dependant on (3)
Amount of fuel
Number of passangers
Amount of distribution of the cargo
Where are slots normally
Fixed to leading edge
When are slats used
High AOA
Why are slats not used at normal angles
Only induces drag at normal angles
Where are fowler flaps
Trailing edge
Where are slotted flaps
Trailing edge
Where are kruger flaps
Leading edge
What is the most common flap on commerical Aircrafts
Fowler
What are spoilers used for
To kill lift allowing for rapid descent
Why is it important for an aircraft to stall at the root out to the tip
So ailerons will be effective in a stall
What direction is an aileron on a downwards wing in a bank
Up
What is the only tab with the same direction of motion as the flight control
Anti balance / Anti Servo
What does a trim tab do
Statically balances the aircraft in flight
“Hands off”
What does a Balance tab do
Aids pilot in overcoming force needed to move control surface
What does a servo tab do
Aerodynamically positions control surfaces that require too much force to move manually
What does an Anti servo tab do
Increases force needed by pilot to change flight control position
Desensitizes flight controls
What does a spring tab do
Enabled moving control surface when forces are high
Inactive during slow flight
What happens to velocity in subsonic
Increases
What happens to pressure in subsonic
Decreases
What happens to density in subsonic
Stays the same
What happens to velocity in supersonic
Decreases
What happens to pressure in supersonic
Increases
What happens to density in supersonic
Increases
What is speed of sound effected by
Temperature
When temperature increases what happens to speed of sound
Increases
What is speed of sound on a standard day
1224.1 kmph
What is a mach number
Ratio of speed of aircraft to speed of sound
What measures speed of sound and displays information to the pilot
Machmeter
What is the flight speed range for subsonic
Below 0.75
What is the flight speed range for transonic
0.75 to 1.2
What is the flight speed range for supersonic
1.2 to 5
What is the flight speed range for hypersonic
Greater than 5
When does air become compressable
Supersonic
What are the 3 types of supersonic waves
Normal oblique and expansion
What wing causes a normal shock wave
Blunt nose subsonic airfoil
What wing causes a Oblique shock wave
Sharped Edge airfoil
What wing causes a expansion shock wave
Double-Wedge airfoil
What is EASA CS-25 Subpart C
Structure
What is EASA CS-25 Subpart D
Design and Construction
What is multi site cracking
Cracks form on several elements at the same time
What is put in Composites to conduct electricity
Copper Mesh
Where are bonding leads used
Hinged and Removable Parts
Where are Bonding strips used
Fuel tanks
Engines
APU
When are fuselage drain valves open
When Unpressurised
When are fuselage drain valves closed
When pressurised
What is primary structure
Contributes significantly to flight ground and pressurisation loads
If fails it could lead to a catastrophic incident
What is secondary structure
If fails the aircraft would be limited in operation
What is terriary structure
Would be the most operational if it was a issue
What axis are buttock lines on
X - Longitudinal Axis
What axis are body stations on
Y - Laterial Axis
What axis are water lines on
Z - Vertical Axis
What is the Zero Point
Distance each line (eg water line) is marked from on each axis
Zonal ID : 100
Fuselage Lower Section
Zonal ID : 200
Fuselage Top Section
Zonal ID : 300
Stabilisers
Zonal ID : 400
Nacelles
Zonal ID : 500
Left wing
Zonal ID : 600
Right wing
Zonal ID : 700
Landing Gear
Zonal ID : 800
Doors
How many digits in a major zone
3
How many digits in a major subzone
2
How many digits in a unit zone
1
What does DLL stand for
Design Limit Load
What does DUL stand for
Design Ultimate Load
What is a monocoque structure
A single shell structure
What is a semi monocoque structure
Shell structure with stringers bulkheads and spars
Where do you find out how to level an aircraft
Type cert data sheet
What is the main deck of an aircraft
Cockpit and Cabin
What is the lower deck of an aircraft
Avionics Compartments
Landing Gear
Cargo Compartments
What is the keel section of an aircraft
Houses Landing Gear
What are the pressurised areas of a aircraft
Cockpit
Cabin
Avionics Department
Cargo Compartments
What are the un-pressurised areas of a aircraft
Radome
Wing Centre Box
Landing Gear Bays
What is a Plug Type Door
Close from inside
Bigger than doorway
Maintains same strength as Fuselage
What is a Non Plug Type Door
Close from Outside
Carries all forces of aircraft
Add to total fuselage strength
What are the (2) types of Cockpit Window
Windshield and side
Why are Cockpit Windows heated
Increase flexibilty
Anti Ice
Stops fogging over
What are the layers in a Cabin window
Outside
Middle
Protective
What type of structure are wings
Semi Monocoque
What way do spars run in a wing
Spanwise
Root to tip
What way do stringers run in a wing
Spanwise
Root to tip
What way do ribs run in a wing
Parallel to Fuselage
Leading edge to Trailing Edge
What do lightening holes do in a rib of an aircraft
Save weight
What do check valves do on an aircraft
Stops fuel moving during banks
Non return valve
What are the (3) componets in a spar
Top Cap
Shear web
Bottom Cap
What is the name of a fuel tanks which houses fuel in it’s wings
Integral Fuel Tank
What construction type is used in flight control surfaces
Monoqoue
What are the componets to make a rudder or aileron
Spar
Honeycomb core
Skinning pannels
What are the componets to make an elevator
Spar
Ribs
Skinning pannels
Where are actuators and hinges mounted normally on flight controls
To spars
Where are static wicks
Trailing edge of flight controls
What is flutter
Vibration
How is flutter eliminated
By balencing flight control surfaces
What is a hinge line
Line where axis of hinge is placed
What is inset
When part of your control surface is forward of the hinge
What are the primary function of Nacelles
Smooth airflow
Prevent damage
Additional Strength
Resistant to bending
Service doors
What is included in nacelles
Nose cowl
Cowl panels
Exhaust nacelle
Trust reverser
What is the function of a pylon
Support Engine
Transmit Thrust to Aircraft
Enable routing of systems
Fire Barrier
What is primary pylon structure
Carries loads
Acts as firewall
What is secondary pylon structure
Not part of firewall
What are the (3) types of engine mount
Wing mounted
Tailside mounted
Tail mounted
What are the sources of bleed air
Engines
APU
Ground Pneumatic Carts/ Networks
What is the conventional source of bleed air in flight
Engines
What is Emergency RAM Air Systems used for
In flight to ventilate cockpit and cabin if packs fail or smoke removal
What does HEPA stand for
High Efficency Particulate Filter
What is the temperature required for a human in flight
21 to 27 degrees C
What is the humidity required for a human in flight
30%
What is the Cabin Air Movement Required for a human in flight
0.55lbs per person per minute
What is the Cabin Climb Rate of an aircraft
500ft/min
What is the Cabin Descent Rate of an aircraft
300ft/min
In an outflow valve, what motor is used for AUTOMATIC mode
AC Motor
In an outflow valve, what motor is used for MANUAL mode
DC Motor
What safety operation occurs at 10,000ft Alt
Warning Alarm
Crew get O2
What safety operation occurs at 14,000ft Alt
Passengers get O2
What does LOPA stand for
Location Of Passenger Accomodation
What is a LOPA
Document gives location and quantity of everything in the cabin
What height of Doors must be fitted with slides
1.8 meters
What connects the floor to the emergancy slide
Girt Bar
How long does it take a slide to inflate
3 to 10 seconds
What is the size of a flight crew exit
19 inches by 20 inches
What is the most common type of fire extinguster in the Cabin
Dry Powder Type
What matierals of an aircraft must be fireproof
Upholstery Materials
What is the max height of an escape path
4 feet tall
What is the most common method of an escape path
Small aisle lights
What colour are escape path lights
White
What colour are emergancy door lights
Red
How are fire resistant qualities of Upholstery Materials decreased
Dry Cleaning
What is the increments of Passenger Seats
1 inch
What are the (2) types of Cargo Compartments
Bulk and Container
What is held in a Bulk Cargo
Loose or Living Objects
What is held in a Container cargo
Containers (LD-3 Half)
Pallets
How can Airstairs be retracted or extended
Battery
Hydraulics
115 volt AC power