What is an Aircraft? Flashcards
What is air?
Air is a mixture of gases, mostly nitrogen and oxygen.
How is thrust produced?
Thurst is the reaction to propelling air rearwards.
What is produced as a result of a physical action?
An equal and opposite reaction.
Which foot is moved forward to turn the aircraft to the left on the ground?
The left foot.
What is one advantage of having a high-wing configuration?
Clears fences, easier to load, better downward view.
What is a disadvantage of tail wheel undercarriage?
Directional control - especially in a crosswind.
An undercarriage that folds up is called a ….. undercarriage?
Retractable.
What is the name of the smoothly shaped panels that cover the engine?
Cowls.
The path of the aircraft through the air is called its…..
Flight path.
The pressure above the wing is ….. than below.
Less or reduced compared to he pressure beneath the wing and the local static pressure.
The angle of the wing to airflow is called the angle of …..
Angle of attack.
Which part of the aircraft is the fuselage?
The fuelsage is the primary structure joining the wings, engine and tail assemblies and which contains the passengers, crew and cargo.
What is the name of the fixed vertical surface that is attached to the rear of the fuelsage?
The fin.
The picture that the pilot see through the windscreen is called the …..
Attitude (pitch and roll or bank).
Specifically, this picture is a measure of the position of the nose or the bottom edge of the windscreen in relation to the …..
Horizon.
What causes the aircraft to turn?
By banking the aircraft a sideways component of lift is used to turn.
Why do ailerons move in opposite directions?
To roll one wing up and the other down - simultaneously.
Why don’t flap also move in opposite directions?
They are not control surfaces - they increase the curvature of the wing so increase lift.
What are they for?
To increase lift for takeoff and to increase both lift and drag for approach and landing.
Which way does the nose move when the control column is pressed forwards?
Down or away from the pilot.
What if the aircraft is upside down?
It works in the same sense relative to the pilot.
What do you say when you wish to hand over control of the aircraft to the instructor?
“You have control”.
What is a knot?
One knot is a speed of one nautical mile per hour.
Name the six primary flight instruments.
Airspeed indicator, attitude indicator, altimeter, vertical speed indicator, heading indicator and turn coordinator with ball balance.
The angle of attack is measured between the chord line of the wing and the …..
Relative airflow.
There are two elements to this picture: ….. and …..
Pitch and bank. How far the nose is above or below the horizon and whether the coaming is parallel to the horizon or at the desired angle.
Thrust is caused by converting the heat from burning the fuel to compression of the pistons in the engine which turns the ….. which then pushes the ….. rearwards.
Propeller, air.
The total force produced as a result of the aerofoil moving through the air is called the …..
Total reaction.
This force has two components called ….. and …..
Lift and induced drag.
Name three things that determine the total reaction?
Airspeed, angle of attack and camber.
What sort of drag is the essential penalty of producing lift?
Induced drag.
What is downwash?
The downward movement imparted to the air after the passage of the wing.
What is stability?
The tendency of the aircraft to continue or return to its trimmed state and flightpath.
What is name of the balance point of an aircraft?
Centre of gravity.
Can an aircraft have to much stability?
Yes. The increased stability reduces the degree of control response.
What is the name of the control surfaces that determine the angle of attack of the wing?
Elevator.
Attitude, together with the power from the engine, determines the ….. of the aircraft.
Flightpath.
To cause a turn, a force is required to change the direction of flight. How is this force produced.
By tilting the total reaction from the wing.
The very front of the wing is called the …..
The leading edge.
The rear of the wing is called the …..
Trailing edge.
….. and ….. together control the flightpath of the aircraft.
Attitude and power determine the sustained flightpath of the aircraft.
What is shown on the turn indicator?
Rate of turn and balance by the balance ball.
What is magnetic heading?
The direction that the aircraft is pointing in relation to magnetic north.
What is a foot?
A unit of distance used for attitude. A foot foot is approximately 30 cm.
Why is the sign “2 MIN TURN” shown on the turn indicator?
It indicates that a rate one produces a 360 degree turn making 2 minutes.
Which rudder pedal is depressed to centre the balance ball when it is to the right?
The right hand pedal is depressed.
Why is airspeed to be the most important piece of information a pilot needs.
It indicates not only speed through the air but it is also an indirect indication of angle of attack in straight and level flight. Low airspeed equals increased angle of attack; minimum airspeed equals stalling angle of attack.
What is the name of the lever that controls the power of the engine?
The throttle.
What is it meant by navaids?
Radio/electronic aids to navigation.
The point at the very front of the aircraft is called the …..
The nose.
What is it meant by a component of lift?
The part of the total force that is acting in the particular direction.
