MOD 8.3 PART 1
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Questions and Answers

Which force is the propelling force delivered by the aircraft's powerplant?

  • Lift
  • Thrust (correct)
  • Weight
  • Drag
  • Which force is produced mainly by the aircraft's wings and acts at right angles to the line of flight?

  • Weight
  • Drag
  • Lift (correct)
  • Thrust
  • Which force acts vertically downwards through the aircraft's center of gravity?

  • Weight (correct)
  • Lift
  • Drag
  • Thrust
  • Which force opposes the forward motion of the aircraft?

    <p>Drag</p> Signup and view all the answers

    Which arrangement of the four forces tends to force the aircraft's nose down?

    <p>Lift and weight forces acting together</p> Signup and view all the answers

    In steady state level flight, if an aircraft is flying at a constant height and speed, which equation represents the relationship between lift, weight, thrust, and drag?

    <p>Lift = Weight and Thrust = Drag</p> Signup and view all the answers

    Which forces must be equal in order for an aircraft to maintain level flight?

    <p>Thrust and drag</p> Signup and view all the answers

    What happens to an aircraft's speed if the thrust force disappears due to engine failure?

    <p>It maintains enough speed to prevent stalling</p> Signup and view all the answers

    What is the purpose of a tailplane on an aircraft?

    <p>To counter out-of-balance pitching moments</p> Signup and view all the answers

    What happens to an aircraft's nose when the thrust/drag couple is removed during engine failure?

    <p>It drops</p> Signup and view all the answers

    What is the consequence of the downward force produced by the tailplane?

    <p>An increase in aircraft weight</p> Signup and view all the answers

    Which factor affects the gliding range of an aircraft the most?

    <p>The prevailing wind</p> Signup and view all the answers

    What is the primary purpose of the tailplane in an aircraft?

    <p>To balance the aircraft at high speed</p> Signup and view all the answers

    What is the condition called when the lift force equals the weight force and the thrust force equals the drag force?

    <p>Trimmed</p> Signup and view all the answers

    What happens to the Centre Of Pressure (CoP) of an aircraft's mainplane at low speed?

    <p>It moves forward</p> Signup and view all the answers

    What happens to the Centre Of Pressure (CoP) of an aircraft's mainplane at high speed?

    <p>It moves rearwards</p> Signup and view all the answers

    What is the relationship between the weight of an aircraft and the lift required during a climb?

    <p>The lift required is less than straight and level flight</p> Signup and view all the answers

    What are the two means by which an aircraft gains potential energy during a climb?

    <p>Increasing thrust and a loss of airspeed without increasing power</p> Signup and view all the answers

    Which force is responsible for keeping the aircraft in the air?

    <p>Lift</p> Signup and view all the answers

    What is the equation for lift force?

    <p>$Lift = Weight \cdot \cos(\theta)$</p> Signup and view all the answers

    What is the equation for drag force?

    <p>$Drag = Weight \cdot \sin(\theta)$</p> Signup and view all the answers

    What is the purpose of the rudder during a right turn?

    <p>To prevent the nose from moving to the left</p> Signup and view all the answers

    What happens to the lift force in a turn?

    <p>It increases</p> Signup and view all the answers

    Which statement accurately describes load factor in straight and level flight?

    <p>The load factor is equal to 1.</p> Signup and view all the answers

    What is the effect of increasing the angle of bank in a turn?

    <p>The load supported by the wings increases.</p> Signup and view all the answers

    What force is required to overcome the inertia when an aircraft changes its flight path to a curved path?

    <p>Centripetal force</p> Signup and view all the answers

    What is the relationship between increasing lift and load in an aircraft?

    <p>Increasing lift increases the positive load on the wings.</p> Signup and view all the answers

    What happens to the load factor during a stall?

    <p>The load factor may be reduced to zero.</p> Signup and view all the answers

    What happens to the load factor if there is an excessive deviation from positive or negative load factor limits?

    <p>The structural load limits of the aeroplane may be exceeded.</p> Signup and view all the answers

    What’s the formula for load factor ?

    <p>Load factor = Lift / Weight</p> Signup and view all the answers

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