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Aviation
Jessie's AFOQT Study guide
73
Aviation
Not Applicable
03/24/2015

Additional Aviation Flashcards

 


 

Cards

Term
Fuselage
Definition
Body of the airplane that contains the cockpit, cabin, passengers, cargo. All other major components are attached to the fuselage
Term

 

 

Wings

Definition
Attached to the fuselage that serves as the main lifiting surfaces supporting the plane in flight
Term

 

 

 

Air foil

Definition
an aircraft part or surface that controls lift, direction, stability, thrust, or propulsion for the aircraft
Term

 

 

 

High-wing, Mid-wing & Low-wing

Definition
the location where the wings are attached to the fuselage
Term

 

 

Monoplanes

Definition
Airplane witn only one set of wings
Term

 

 

Biplanes

Definition
planes with two sets of wings
Term
Cantilever & Semi-cantilever
Definition
two categories of wings for bracing and support
Term

 

 

Cantilever

Definition
do not require external bracing. Support is provided from interal wing sparrs, ribs and stringers
Term

 

 

Semi-cantilever

Definition
Requires external and internal support for the wing to attach to the fuselage
Term

 

 

Firewall

Definition
fire proof partition between the engine compartment and the cockpit/cabin to protect the crew from a fire in the engine
Term

 

 

Fuselage general designs

Definition
Truss & Monocoque
Term
Truss
Definition
uses steel or aluminum tubing in a series of triangular shapes called Trussess to get the necessary strength and rigidity.
Term
Monocoque
Definition
uses bulkheads, stringers, and formers of various sizes and shapes to support a stretched or stressed skin
Term
Two sets of control surfaces at the edges of wings
Definition
ailerons & flaps
Term
Ailerons
Definition
extend from the middle of the wing out to the tip; they move in opposite directions to create aerodynamic forecs that cause the airplane to roll
Term
Flaps
Definition
extend outward from the the fuselage (wingroot) to about the middle of the wing's trailing edge. Flaps move downward together to incresase the lifet of the wing for take off and landings
Term
Where are airfoils
Definition
any application where air needs to be moved
Term
What causes lift?
Definition
difference between the air pressure above and below the wing. air flows faster of tip of the wing than it does underneath it
Term
Airfoils for low to medium speed airplanes?
Definition
airfoils with more thickness and camber
Term
Chord
Definition
Distance from the leading edge of the wing to the trailing edge
Term
Chord line
Definition
line from the middle of the leading edge to the trailing edge; cuts the airfoil into an upper and lower surface
Term
Mean Chamber line
Definition
Plotted points that le halfway between the upper and lower surfaces
Term
Camber
Definition
maximum distance between the chord line and the mean camber line; measurement of the curvature of the airfoil
Term
Thickness
Definition
maximum distance between the upper and lower surfaces
Term
Wing tips
Definition
ends of the wings
Term
wingspan
Definition
distance from one wingtip to the other
Term
Dihedral angle
Definition
the angle that the wings meet at; wings are not horizonal so they meet and an angle known as the dihedral angle
Term
anhedral
Definition
wingtips lower than the roots; higher roll rate; fighter planes
Term
Landing gear
Definition
3 wheels or sets of wheels; retractable or nonretractable
Term
Retractable
Definition
Pulled into the cavity of the fuselage with a door; reduces drag and improces the airplanes performance
Term
Nonretractable
Definition
have fairings over their top half to reduce drag and improve the planes performance
Term
Where are two of the wheels mounted?
Definition
mounted either underthe wings or at the outside of the fuslage
Term
Where is the third wheel?
Definition
mounted either under theail of the aiplance of at the nose
Term
Conventional landing gear or tailwheel airplanes
Definition
landing gear suing a tailwheel
Term
Tricycle landing gear
Definition
third wheel under the nose
Term
Types of fixed wing aircraft?
Definition
propellers and jets
Term

Propeller or "prop"

 

Definition
get their thrust by the corkscrew action of one or more propellers with two or more blades each rotating very fastin front of the enginge, which pushes air backward with the result that the plane is pushed forward
Term
What law is associated with propeller aircraft?
Definition
Newton's 3rd law
Term
Fixed-pitch propeller
Definition
pilot can not change the angle of the blade; connected directly to crankshaft; engine rotates the crankshaft and propeller, propeller converts engens power into thrust
Term
Variable-pitch propellor or constant speed propeller
Definition
blade angle can be adjusted by pilot
Term
How do jet engines work?
Definition
forcing incoming air into a tube or cylinder where the air is compressed, mixed with fuel , burned and pussed exhausted at high speed to generate thrust
Term
Afterburner
Definition
tube between the turbine and rear exhaust nozzle where additional fuel is added to the flow to incease thrust
Term
empennage
Definition
tail section of a plane
Term
Rudder
Definition
used to turn airplane while flying
Term
Netwons first law or Motion (inertia)
Definition
a body at rest remains at rest; a body in motion tends to remain in motion unless acted upon by an outside force
Term
Newton's second law of Motion
Definition

F=ma

F- forces acting on an object

m- object's mass

a- object's acceleration

Term
Newton's Third law of motion
Definition

For every action there is an equal and opposite reaction.

when one object exerts a force on another object the second object exerts and equal and opposite force on the first object.  

Term
Universal Gravity
Definition
two objects attract each other with a force that is proportional to the product of their masses and inversely proportional to the square of the distance between them.
Term
what are the four forces that act in flying?
Definition
lift, gravity (weight), drag & thrust
Term
What does lift do?
Definition
pushes the aircraft up awa from the earth
Term
What does gravity do?
Definition
pulls the aircraft towards earth
Term
What does thrust do?
Definition
pushes the aircraft forward
Term
What does drag do?
Definition
resistance to the aircraft going forward
Term
What principle is used to provide lift?
Definition
Bernoulli's principle
Term
Bernoulli's Principle
Definition

velocity of fluid increases, the pressure exerted by that fluid decreases;

the faster a fluid travels over a surface the less time it has to exert pressure on any given part of that surface

Term
Stall
Definition

caused by separation of air flow from the wings upper surface; rapid decrease in lift; falling out of the sky

 

 

Term
How does a pilot counteract stalling?
Definition
decreasing the angle of attack below the stalling angle
Term
Profile or Parasiitic drag
Definition
cause by the plane pshing air out of the way as it moves forward
Term
induced drag
Definition
result of the production of lift;force produced by the wing that is parallel to the relative wind
Term
Drag due to lift
Definition
objects that creat lift must overcome induced drag
Term
flight envelope
Definition
combination of lift, gravity, thrust and drag and others that allow the aircraft to be flown
Term
flying outside the envelope
Definition
unsafe condition that causes problems in maintaining stability or the ability to fly
Term
longitudinal axis
Definition
axis that runs lengthwise through the fuselage from the nose to the tail.
Term
lateral axis
Definition
Axis that runs wingtip to wingtip
Term
vertical axis
Definition
axis that passes vertically through the aircraft's center of gravity
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