Flashcards in Chapter 1.1 - Exam Review Deck (78):
An Aircraft is flying straight and level. If the left Rudder is pushed forward and help (without moving the other controls), the Aircraft will, in sequence, Yaw, Roll and Sideslip to the (left/right)?
The primary effect of moving the Elevator is to change the pitch attitude. What is the further effect to this movement?
To alter the Airspeed.
An increase in Airspeed will (increase/decrease) the effectiveness of the Elevator, Rudder and Ailerons?
Because the Ailerons are outside the propeller slipstream, their effectiveness (is/is not) affected by a change in the engine power setting?
What is the purpose of the Elevator Trim Control?
To adjust the pitch control.
Full flap deflection normally (increases/decreases) the Drag significantly more than it (decreases/increases) the Lift?
For the same speed in level flight, a lower-than-normal nose attitude is needed with the flap (up/down)?
When climbing at a constant IAS, will a decrease in engine power output increase or decrease the rate of climb?
In a headwind, the angle of climb is (increased/decreased) and the rate of climb is (increased/decreased/unchanged)?
Is the speed used for maximum angle of climb more than or less than the speed for maximum rate of climb?
What effect, if any, does hot weather have on climb performance?
It decreases climb performance.
Is the rate of climb increased or decreased by an increase in weight?
Inadvertently leaving flaps down during the climb, (increases/decreases) both the rate and angle of climb?
For better engine cooling and maximum ground speed, the best climb to use is the normal-climb speed which is (higher than/lower than) the best rate of climb speed?
For obstacle clearance during climb after takeoff, the best climb speed to use is the (best angle of climb/best rate of climb) speed?
Best angle of climb speed.
An ATC instruction to climb to a given altitude in the quickest time would mean you would use the (best rate of climb/normal-climb speed)?
Best rate of climb speed.
Turning during a climb, (increases/decreases) the rate of climb?
The nose attitude in a descent will be (higher/lower) with increased engine power at a constant IAS?
At a constant IAS, an increase in engine power in a descent will (increase/decrease) the rate of descent and (flatten/steepen) the angle of descent?
When undershooting a glide approach to land, you should (increase/maintain) the best glide speed to achieve maximum glide range?
Glide angle is (increased/decreased) in a headwind which steepens the glide path and (decreases/increases) the gliding distance?
In what way foes the lowering of flap affect glide performance if a constant IAS is maintained?
Decreases glide performance.
The best glide speed to achieve the best glide performance is the speed which is (less than/more than/the same as) the speed for best L/D ratio or the speed for minimum drag?
The same as.
True or False. A balanced turn is one in which the angle of bank is correct for the particular and radius of turn?
In a level turn, does an increase in bank angle increase or decrease the stall IAS?
In a level turn, the load factor (increases/decreases) as the bank angle is increased?
With the IAS constant, the (angle of attack/angle of bank) must be increased to generate the extra lift required to maintain height in a level turn?
Angle of Attack.
Why should steep turns be avoided shortly after takeoff?
As takeoff speed is close to the stall speed.
Steep turns should be avoided on approach to land because as well as high rates of descent being likely, at the normal approach speed, the margin above the stall speed will be (increased/decreased) as the bank is increased?
When flaps are lowered on the approach, what effect does this have on lift, drag and the approach path?
It allows the approach path to be slower and steeper.
An into-wind takeoff will (increase/decrease) the takeoff run and (steepen/flatten) the flight path?
What effect does the lowering of flaps have on the Aircraft attitude during descent?
A lower nose attitude which provides better forward vision.
The touchdown speed with flaps lowered is (higher/lower) than the touchdown speed in a flapless landing?
Which situation is more likely to cause an Aircraft to ‘wheelbarrow’ during the landing roll – an approach at excessive speed with full flaps lowered or a flapless approach at the recommended approach speed?
An approach at excessive speed with full flaps lowered.
What primary control hazard to light Aircraft on takeoff or landing is likely to result from an encounter with the trailing wing tip vortices of a medium to large jet?
The Aircraft may experience strong uncontrollable rolling motion.
To avoid wake turbulence from a large Aircraft in flight, is it better to fly (above/below) its flight path?
A light Aircraft taxiing behind a large jet, may encounter (wake turbulence/jet blast)?
What is the radius of the area to be avoided by light Aircraft at aerodromes where helicopter are operating and why?
3 times the rotor diameter.
Lift is the aerodynamic force produced by the wings to balance the weight of the Aircraft and acts (parallel to/perpendicular to) the relative airflow?
Will the lift and drag on an aerofoil increase or decrease with an increase in angle of attack towards the stalling angle?
What effect does the lowering of flaps have on the lift and drag of a wing?
Both lift and drag increase.
Which type of drag results from the production of lift?
Of the factors which affect lift production (in the clean configuration), the Pilot only has direct control over two of them. What are they?
- Angle of Attack.
Define angle of attack?
Angle between the Chord Line and Relative Airflow.
As the angle of attack of a wing is increased, the lift increases only up to an angle of attack of approximately 16°. Beyond this angle for maximum lift, the lift then begins to decrease. What is the term given to the angle of attack corresponding to maximum lift?
The Stalling Angle.
If the IAS is kept constant, will an increase in angle of attack increase or decrease the lift?
If the angle of attack is kept constant, will an increase in Airspeed increase or decrease the lift?
In straight and level flight, the lift must be constant in order to balance the weight of the Aircraft. For the lift to remain constant, any increase in angle of attack means that the Airspeed must be (increased/decreased)?
In straight and level flight where lift is constant, any increase in Airspeed must be accompanied by a (decrease/increase) in the angle of attack?
Drag is the aerodynamic force which acts (parallel to/perpendicular to) and in a direction (opposite to/the same as) the relative airflow?
- Parallel to.
- The same as.
(Parasite/Induced) drag is the price we pay for the production of lift?
Induced drag is (higher/lower) at high angles of attack and low Airspeed in straight and level flight?
An increase in Airspeed will (increase/decrease) parasite drag?
Is the minimum drag speed more than or less than the speed for normal cruise?
In straight and level flight, an Aircraft has a stalling speed of 60 knots. What will the stalling speed and load factor be in the 60° banked level turn (2)?
- 84 knots.
In straight and level flight, an Aircraft has a stalling speed of 70 knots. What will the stalling speed and load factor be in the 45° banked level turn (2)?
- 84 knots.
What effect, if any, does frost or ice on the wings have on the stall speed?
The Stall Speed is increased.
What effect, if an, does the lowering of flap have on the stall speed?
It decreases the Stall Speed.
In level flight, will the stalling speed increase or decrease if weight is increased?
Is stalling speed increased or decreased by an increase in load factor?
What is the best means of discrimination between a spin and a spiral dive?
Difference in Airspeed.
The most efficient angle of attack for most aerofoils is about 4°. If the angle of attack is increased from this value up to the stalling angle, what happens to the lift coefficient and drag force?
They will both increase.
If the angle of attack is increased beyond the stalling angle, what happens to the lift coefficient and drag force?
Lift coefficient will decrease and the drag force will keep increasing.
What is the term given to the aerodynamic force which acts both upwards and backwards through the centre of pressure of an aerofoil?
The total reaction has two components. What are they?
Lift and Drag.
Induced drag always acts (parallel to/perpendicular to) the relative airflow?
As the angle of attack is increased towards the stalling angle, does the centre of pressure move forward towards the leading edge or back towards the trailing edge?
Moves forward towards the leading edge.
What is the movement of the centre of the pressure when the angle of attack is increased beyond the stalling angle?
It moves back towards the trailing edge.
The best L/D ratio for most aerofoils is achieved at an angle of attack of about 4°. At this angel of attack, drag is at a (minimum/maximum)?
As the angle of attack is increased towards the stalling angle, what happens to the lift and drag forces?
- Lift remains constant.
- Drag force increases.
What happens to the lift and drag forces once the angle of attack is increased beyond the stalling angle?
- Drag force continues to increase.
- Lift force decreases.
Which two components of parasite drag result from the ‘stickiness’ of the air creating a boundary layer on the surface of an Aircraft?
- Skin Friction.
- Form Drag.
Name the two boundary layer?
A laminar boundary layer over a larger part of an Aircraft’s ‘skin’ means there is (more/less) skin friction drag produced?
Form drag is (high/low) at high angles of attack?
Parasite drag is high at (high/low) Airspeeds?
Induced drag is high at (high/low) Airspeeds?