PHAK 3: Aircraft Construction Flashcards
Categories of aircraft for certification of airmen include:
- Airplane
- Rotorcraft
- Glider
- Lighter-than-air
- Powered-lift
- Powered parachute
- Weight-shift control aircraft
Aircraft Design, Certification, and Airworthiness
The FAA certifies three types of aviation products:
- Aircraft
- Aircraft engines
- Propellers
Aircraft Design, Certification, and Airworthiness
What does CFR stand for?
Code of Federal Regulations
Aircraft Design, Certification, and Airworthiness
What does TC stand for?
Type Certificate
Aircraft Design, Certification, and Airworthiness
When does the FAA issue a TC?
- When they are satisfied the product complies with the applicable airworthiness standards.
- When the TC is issued, a TCDS is generated
Aircraft Design, Certification, and Airworthiness
What does TCDS stand for?
Type Certificate Data Sheet
Aircraft Design, Certification, and Airworthiness
What is a TCDS for?
- The TCDS defines the product.
- The important design and operational characteristics of the aircraft, aircraft engine, or propeller
Aircraft Design, Certification, and Airworthiness
Are light sport aircraft designed according to FAA airworthiness standards?
Light Sport Aircraft
- No.
- TC is issued to the aircraft as a whole. It includes the airframe, engine, and propeller.
Aircraft Design, Certification, and Airworthiness
When does the FAA issue an airworthiness certificate for light sport aircraft?
Light Sport Aircraft
When the aircraft is complete.
With the airframe, engine, and propeller.
Aircraft Design, Certification, and Airworthiness
What does having an airworthiness certificate mean?
Light Sport Aircraft
The complete aircraft meets the design and manufacturing standards, and is in a condition for safe flight.
Aircraft Design, Certification, and Airworthiness
How long does an airworthiness certificate remain valid?
Light Sport Aircraft
As long as the required maintenance and inspections are kept up to date for the aircraft.
Aircraft Design, Certification, and Airworthiness
Where is the airworthiness certificate kept?
Light Sport Aircraft
Must be carried in the aircraft during all flight operations.
Aircraft Design, Certification, and Airworthiness
Airworthiness certificates are classified as either…
Light Sport Aircraft
“Standard” or “Special”
Aircraft Design, Certification, and Airworthiness
What color are Standard airworthiness certificates.
- White
Aircraft Design, Certification, and Airworthiness
Describe Standard airworthiness certificates.
- Issued for normal, utility, acrobatic, commuter, or transport category aircraft.
- Also issued for manned free balloons and aircraft designated as “Special Class.”
Aircraft Design, Certification, and Airworthiness
What color are Special airworthiness certificates.
- Pink
Aircraft Design, Certification, and Airworthiness
Describe Special airworthiness certificates.
- Issued for primary, restricted, and limited category aircraft, and light sport aircraft.
- Also issued as provisional airworthiness certificates, special flight permits (ferry permits), and for experimental aircraft.
Lift and Basic Aerodynamics
What four forces act upon an aircraft in relation to straight-and-level, unaccelerated flight.
- Thrust
- Lift
- Weight
- Drag
Lift and Basic Aerodynamics
What is thrust?
- Forward force produced by the powerplant/propeller.
- It opposes or overcomes the force of drag.
- As a general rule, it is said to act parallel to the longitudinal axis. This is not always the case as explained later.
Lift and Basic Aerodynamics
What is drag?
- Drag is a rearward, retarding force and is caused by disruption of airflow by the wing, fuselage, and other protruding objects.
- Drag opposes thrust and acts rearward parallel to the relative wind.
Lift and Basic Aerodynamics
What is weight?
- Combined load of the aircraft itself, the crew, the fuel, and the cargo or baggage.
- Weight pulls the aircraft downward because of the force of gravity.
- It opposes lift and acts vertically downward through the aircraft’s center of gravity (CG).
Lift and Basic Aerodynamics
What is lift?
- Produced by the dynamic effect of the air acting on the wing
- Acts perpendicular to the flight path through the wing’s center of lift (CL).
Lift and Basic Aerodynamics
An aircraft moves in ____ and is controlled by moving it about one or more of its ____.
three dimensions, axes
Lift and Basic Aerodynamics
The lateral axis
- Pitch
- Passes parallel to a line from wingtip to wingtip
- Intersects the CG
Lift and Basic Aerodynamics
The longitudinal axis
- Roll
- Extends through the aircraft from nose to tail
- Passes through the CG
Lift and Basic Aerodynamics
The vertical axis
- Yaw
- Passes through the aircraft vertically
- Intersects the CG
Lift and Basic Aerodynamics
How do control movements relate to the airplane axes?
All control movements cause the aircraft to move around one or more of these axes and allows for the control of the aircraft in flight.
Lift and Basic Aerodynamics
What does CG stand for?
Center of Gravity
Lift and Basic Aerodynamics
What is aircraft CG?
The specific point where the mass or weight of an aircraft may be said to center; that is, a point around which, if the aircraft could be suspended or balanced, the aircraft would remain relatively level.
Lift and Basic Aerodynamics
The position of the CG of an aircraft determines the…
stability of the aircraft in flight.
Lift and Basic Aerodynamics
As the CG moves rearward…
the aircraft becomes more and more dynamically unstable.
Lift and Basic Aerodynamics
If the CG is too far aft…
there might not be enough elevator nose-down force at the low stall airspeed to get the nose down for recovery.
Lift and Basic Aerodynamics
If the CG is too far forward…
there will not be enough elevator nose-up force to flare the airplane for landing.
Major Components
Most airplane structures include…
- A fuselage
- Wings
- An empennage
- Landing gear
- A powerplant
Major Components
Fuselage
- Central body of an airplane and is designed to accommodate the crew, passengers, and cargo.
- It also provides the structural connection for the wings and tail assembly.
Major Components
What are the most popular fuselage types in today’s aircraft?
- Monocoque (French for “single shell”)
- Semimonocoque.
Major Components
Wings
The wings are airfoils attached to each side of the fuselage and are the main lifting surfaces that support the airplane in flight.
Major Components
Wings may be attached at…
- The top, middle, or lower portion of the fuselage.
- High-, mid-, and low-wing, respectively.
Major Components
What are planes with a single set of wings called?
Monoplanes
Major Components
What are planes with two sets of wings called?
Biplanes
Major Components
What is a semi-cantilever wing?
- High-wing airplanes with external braces, or wing struts that transmit the flight and landing loads through the struts to the main fuselage structure.
- The wing struts are usually attached approximately halfway.
Major Components
In most modern airplanes, the fuel tanks are…
either an integral part of the wing’s structure or consist of flexible containers mounted inside of the wing.
Major Components
What is 1?
Fuel tank
Major Components
What is 2?
Skin
Major Components
What is 3?
Ribs
Major Components
What is 4?
Stringers
Major Components
What is 5?
Wing tip
Major Components
What is 6?
Aileron
Major Components
What is 7?
Spar
Major Components
What is 8?
Wing flap
Major Components
Basic section
Major Components
Plain flap
Major Components
Split flap
Major Components
Slotted flap
Major Components
Fowler flap
Major Components
Slotted fowler flap
Major Components
Empennage
- The entire tail group
- Fixed surfaces include the vertical stabilizer and the horizontal stabilizer.
- Movable surfaces include the rudder, elevator, and one or more trim tabs.
Major Components
What is 1?
Horizontal stabilizer
Major Components
What is 2?
Vertical stabilizer
Major Components
What is 3?
Rudder
Major Components
What is 4?
Trim tabs
Major Components
What is 5?
Elevator
Major Components
Where is the rudder attached?
Back of the vertical stabilizer.