2 Types of Aviation correct answers Civilian & Military
Fixed Wing Examples correct answers Fighter jets, bombers, civilian jets and corporate
airliners
Rotary-Wing Examples correct answers Helicopters, gyro-copters, and tilt-rotor flying
machines
Aircraft correct answers Machine supported aloft by lift created by air flowing across
airfoil, wings, propeller, rotor blades or buoyancy
Civilian Aircraft categorized as correct answers normal, utility, acrobatic, commuter,
transport, manned free balloons, special classes
Military aircraft are categorized based off correct answers of the mission that they
perform
Flaps correct answers increase wings surface area and augment (increase) lift to
reduce air speed
Spoiler correct answers Hinged panels that move upward after landing to destroy lift
Air Brakes (Speed Brakes) correct answers Decelerate the aircraft in flight and increase
the rate of descent
Spar correct answers The main structural member inside each wing
These run the length of the wing
Ribs correct answers are attached perpendicularly to the spar to provide more support
and strength
Wings of most planes that fly below the speed of sound correct answers Are shaped
perpendicular
Wings of most planes that fly above the speed of sound correct answers are swept back
to delay the drag of air compressibility. Swept wings increase the performance on high
performance planes
Delta wing correct answers This is a triangular shaped wing
Variable Geometry wings correct answers The wings are positioned perpendicular at
take off, landing and low air speeds, then move to a swept position when flying at high
speeds
, Planes that take off and land on water have correct answers Floats. They will take off
and land on both water and land because they have retractable wheels
4 main aerodynamic forces acting on an aircraft when airborne correct answers weight
lift
thrust
drag
Total weight force acts through the correct answers Center of gravity
Lift correct answers The force that counteracts the weight and causes the machine to
rise
Produced by air foils
Thrust correct answers The aircraft's forward force. This is created by its engines
Drag correct answers What opposes thrust
Rearward acting force caused by air flow passing over the aircraft's structure and
becoming disrupted
Total drag correct answers Sum of its profile drag, induced drag and parasite drag
Induced drag correct answers Product of lift. Stationary aircraft to not produce this.
Parasite drag correct answers parts of the aircraft that do not contribute to the
production of lift produce this when the machine is moving.
(Nose, fuselage, landing gear, rudder)
Bernoulli's Principle correct answers Increase of the inviscid flow of fluid resulted in a
decrease of static pressure exerted by the fluid
Conservation of mass correct answers A fluid's mass cannot be created or destroyed
within a flow of interest.
Conservation of momentum (Mass x Velocity) correct answers cannot be created or
destroyed. It can be changed trough applied force. It is conserved in all 3 directions
(laterally, longitudinally and in terms of yaw) at the same time
Newton's First law of motion correct answers A stationary object remains at rest and an
object in motion continues to move at the same rate and in the same direction unless
acted upon by another force
Newton's Second law of motion correct answers Acceleration results from a force being
applied to an object. The heavier the body, the greater amount of force needed to
accelerate it