Ch 2C - Flight Instruments Flashcards

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1
Q

ISA

A

International Standard Atmosphere - standard conditions for flight instruments 29.92 in. Hg (14.7 lb/in^2 or 1013.2 millibars) and 15C(59F)

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2
Q

PFD

A

Primary Flight Display - contains primary flight instruments

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3
Q

MFD

A

Multifunction Display - variety of info (moving maps, airports, terrain, weather)

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4
Q

AHRS

A

Attitude and Heading Reference System - uses electronic gyroscopes, accelerometers, and a magnetometer to determine attitude relative to the horizon and heading

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5
Q

HSI

A

Horizontal Situation Indicator - displays current airplane heading in IFD

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6
Q

ADC

A

Air Data Computer - uses temp and pressure readings to determine readings for instruments in IFD

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7
Q

Instruments needed for VFR single engine flight

A

airspeed indicator, altimeter, magnetic compass, tachometer, oil pressure gauge, oil temp gauge, fuel gauge, manifold pressure gauge (constant speed prop), landing gear position indicator (retractable landing gear)

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8
Q

Standard lapse rates (below 36,000 feet)

A

help calculate anticipated temps and pressures at various altitudes, temp drops 2C and pressure 1.00 inches Hg for each 1,000 feet increase of altitude

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9
Q

Pitot tube

A

ram air pressure enters

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10
Q

Use static pressure

A

Airspeed indicator, altimeter, vertical speed indicator

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11
Q

Use pitot pressure

A

airspeed indicator

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12
Q

Static port

A

takes in relatively undisturbed air

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13
Q

V-speeds

A

Vso (end white arc) - stalling speed w/flaps down
Vs1 - (end green arc) - stalling speed w/flaps up
White arc - flap opp range/landings
Vfe (end white arc) - max speed w/flaps
Green arc - normal op range
Vno (end green arc) - max speed in non-smooth air
Yellow arc - only fly in smooth air/caution
Vne (red line) - never exceed

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14
Q

Va

A

maneuvering speed, changes with aircraft weight, not marked

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15
Q

Stall speed for a certain airplane

A

doesn’t change with altitude

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16
Q

arrows on the altimeter

A

long- hundreds of feet
mid- thousands of feet
short- tens of thousands of feet

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17
Q

indicated altitude

A

altimeter reading

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18
Q

pressure altitude

A

height above the standard datum plane

19
Q

density altitude

A

pressure altitude corrected for temp, increase as temp increase

20
Q

calibrated altitude

A

indicated altitude corrected to compensate for instrument error

21
Q

true altitude

A

actual height above mean sea level

22
Q

absolute altitude

A

vertical distance above surface

23
Q

a one inch change on the altimeter

A

results in a 1,000 foot change in indicated altitude in the same direction

24
Q

temp to pressure relationship

A

temp up, pressure up, true altitude higher than indicated altitude

25
Q

trend information

A

immediate indication of a change in rate of climb/decent

26
Q

rate information

A

stabilized rate of change

27
Q

rigidity in space

A

a wheel spun rapidly will remain in a fixed position in the plane in which it is spinning

28
Q

Precession

A

tilting or turning of a gyro in response to pressure

29
Q

vacuum (suction) system

A

used to spin gyros in attitude and heading indicators

30
Q

true altitude to indicated altitude

A

if you fly from high pressure to low pressure area altimeter will indicate higher than true altitude, low to high altimeter will be lower than true altitude

31
Q

standard rate turn

A

alignment of wings on turn cordinator with turn index, 3 degrees per second

32
Q

turn cordinator

A

shows aircraft yaw and roll, adjustable miniature airplane

33
Q

slip

A

rate of turn is too slow for the angle of bank, ball moves to the inside of inclinometer

34
Q

skid

A

rate of turn is too great for the angle of bank, ball moves to outside of inclinometer

35
Q

heading indicator

A

must be aligned periodically with the magnetic compass due to precession

36
Q

variation

A

angular difference between the true and magnetic poles

37
Q

deviation

A

compass error due to disturbances from magnetic fields of the airplane and its electronic equipment

38
Q

magnetic dip

A

earth’s magnetic field pulling the magnetic bar in a compass, results in a lag in reading in turns

39
Q

accelerating/decelerating in the northern hemisphere heading west/east

A

accelerating - compass shows a turn to the north

decelerating - compass shows a turn to the south

40
Q

right/left turns in northern hemisphere while heading north

A

right turn - initially indicates a turn to the west

left turn - initially indicates a turn to the east

41
Q

integrated flight display

A

digital flight instruments

42
Q

magnetometer

A

senses earths magnetic field to function as a compass, less errors

43
Q

slip/skid indicator

A

helps maintain cordinated flight in IFD

44
Q

turn rate indicator

A

provide reference marks for making standard rate turns in IFD