Fundamentals Of Flight

Question 0

Acceleration

Answer 0

Change of speed or velocity of matter with time

Question 1

Define motion

Answer 1

movement

Question 2

Speed

Answer 2

Distance in an allotted amount of time

Question 3

Velocity

Answer 3

Speed in a given time and direction

Question 4

Newton’s First Law

Answer 4

Inertia
An object at rest will remain at rest
object in motion will continue in motion until acted upon by an outside force

Question 5

Bernoulli’s principle

Answer 5

fluid flowing through a tube reaches a constriction or narrowing of the tube, the speed of the fluid passing through the constriction is increased and its pressure decreased

Question 6

Lift

Answer 6

Force that acts in an upward direction

Question 7

Weight

Answer 7

Force of gravity acting downward on the aircraft

Question 8

Drag

Answer 8

Force that holds the aircraft back

Question 9

Thrust

Answer 9

Force developed by the aircraft’s engine

Acts in the forward direction

Question 10

Aircraft axis

Answer 10

• Longitudinal axis. An imaginary reference line running down the center of the aircraft between the nose and tail.
• Lateral axis. An imaginary reference line running parallel to the wings.
• Vertical axis. An imaginary reference line running from the top to the bottom of the aircraft.

Question 11

Ailerons

Answer 11

Roll

Question 12

Elevators

Answer 12

Pitch

Question 13

Rudder

Answer 13

Yaw

Question 14

The cyclic stick

Answer 14

Roll/pitch
Tilts the plane (angle) of the rotor blades forward, aft or sideways, giving the helicopter its directional motion by changing the direction of the lift; from vertical to a varying degree based on a 0° centerline.

Question 15

Tail rotor

Answer 15

Yaw
This component counteracts torque of the main rotor by increasing or decreasing the amount of horizontal thrust the tail rotor produces, this movement is around the vertical axis

Question 16

Angle of attack

Answer 16

The angle at which the airfoil or fuselage meets a flow of air. Defined as the angle between the chord line of the wing (an imaginary straight line from the leading edge to the trailing edge of the wing) and the relative wind. The relative wind is the direction of the air stream in relationship to the wing. Angle of attack is measured in “units” as opposed to degrees.

Question 17

Autorotation

Answer 17

A method of allowing a helicopter to land safely from altitude without using engine power. As a helicopter is descending in altitude the collective is lowered allowing the reverse airflow through the rotor to maintain RPM. When the helicopter reaches a predetermined altitude the collective pitch is increased to convert inertial energy into lift to reduce the rate of descent and cushion the landing.

Question 18

Hydraulic system

Answer 18

PUMP
ACTUATING UNIT
RESERVOIR
TUBING
SELECTOR VALVE

Question 19

Landing gear main components

Answer 19

Shock strut
Tires
Wheel brake
Retracting and extending mechanism 
Side struts and supports