Instruments Flashcards
What indication is presented by the miniature aircraft of the turn coordinator?
Indirect indication of the bank attitude
Which instrument indicates the quality of a turn?
Ball of the turn coordinator.
What force causes an airplane to turn?
Horizontal lift component.
The rate of turn at any airspeed is dependent upon
The horizontal lift component.
when airspeed is decreased in a turn, what must be done to maintain level flight?
Decrease the angle of bank and/or increase the angle of attack.
During a skidding turn to the right, what is the relationship between the component of lift, centrifugal force, and load factor?
Centrifugal force is greater than the horizontal lift and the load factor is increased.
what is the relationship between centrifugal force and the horizontal lift component in a coordinated turn?
Horizontal lift and centrifugal force are equal.
when airspeed is increased in a turn, what must be done to maintain a constant altitude?
Increase the angle of bank and/or decrease the angle of attack.
if a half-standard rate turn is maintained, how long will it take to turn 360°?
4 Minutes.
If a standard rate turn is maintained, how long would it take to turn 180°?
1 Minute.
If a half-standard rate turn is maintained, how much time would be required to turn clockwise from a heading of 090° to a heading of 180°?
1 Minute.
During a constant-bank level turn, what effect would an increase in airspeed have on the rate and radius of turn?
Rate of turn would decrease, and radius of turn would increase.
If a standard rate turn is maintained, how much time would be required to turn to the right from a heading of 090° to a heading of 270°?
1 Minute.
If a standard rate turn is maintained, how much time would be required to turn to the left from a heading of 090° to a heading of 300°?
50 seconds.
if a half-standard rate turn is maintained, how long would it take to turn 135°?
1 minute 30 seconds
rate of turn can be increased and radius of turn decreased by
Decreasing airspeed and increasing the bank.
The primary reason the angle of attack must be increased, to maintain a constant altitude during a coordinated turn, is because the
the vertical component of lift has decreased as the result of the bank.
the displacement of a turn coordinator during a coordinated turn will
increase as angle of bank increases.
(Refer to figure 144.) What changes in control displacement should be made so that “2” would result in a coordinated standard rate turn?
Increase left rudder and increase rate of turn.
(Refer to figure 144.) Which illustration indicates a coordinated turn?
3
(Refer to figure 144) Which illustration indicates a skidding turn?
1
(Refer to figure 144.) What changes in control displacement should be made so that 1 would result in a coordinated standard rate turn?
increase right rudder and increase rate of turn.
(refer to figure 144) which illustration indicates a slipping turn?
2
when airspeed is increased in a turn, what must be done to maintain a constant altitude?
Increase the angle of bank and/or decrease the pitch attitude.
What pre-takeoff check should be made of a vaccuum-driven heading indicator in preparation for an IFR flight?
After 5 minutes, set the indicator to the magnetic heading of the aircraft and check for proper alignment after taxi turns.
On the taxi check, the magnetic compass should
swing freely and indicate known headings.
what should be the indication on the magnetic compass as you roll into a standard rate turn to the left from an east heading in the northern hemisphere?
the compass will indicate the approximate correct magnetic heading if the roll into the turn is smooth.
what should be the indication on the magnetic compass as you roll into a standard rate turn to the right from an easterly heading in the Northern Hemisphere?
The compass will indicate the approximate correct magnetic heading if the roll into the turn is smooth.
What should be the indication on the magnetic compass as you roll into a standard rate turn to the right from a south heading in the Northern Hemisphere?
the compass will indicate a turn to the right, but at a faster rate than is actually occurring.
On what heading will the magnetic compass read most accurately during a level 360° turn, with a bank of approximately 15°?
90° and 270°