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BGFC > AERT 3060 Mid-Term > Flashcards

AERT 3060 Mid-Term Flashcards

(78 cards)

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1
Q

Left engine model

A

IO-360-B1G6

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2
Q

Right engine Model

A

LIO-360-B1G6

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3
Q

Engine Type

A

Fuel injected
Four Cylinder
Direct Drive
Horizontally opposed
air cooled

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4
Q

The two types of prop blades that we have

A

Straight and Scimitar

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5
Q

Tell me about the straight blade

A

2 blades
74 max diameter
72 min diameter

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6
Q

Tell me about the scimitar blade

A

2 blades
74 max diameter
72.5 min diameter
N445BG & N446BG

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7
Q

Total Fuel Capacity

A

110

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8
Q

Usable Fuel

A

108

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9
Q

Vne

A

Never Exceed Speed
202

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10
Q

Vno

A

Max structural cursing speed
169

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11
Q

Vo

A

Max operating maneuvering speed
@ 3800 GW = 135
@2870 GW = 115

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12
Q

Vle

A

Max landing gear extended
140

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13
Q

Vlo

A

Max landing gear extension
140

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14
Q

Vlo

A

Max landing gear retraction
109

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15
Q

Vfe

A

Max flaps extended
111

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16
Q

Blue Line

A

one engine inop. best rate of climb
88

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17
Q

Vmca

A

lowest airspeed with one engine inop
56

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18
Q

Never exceed speed

A

202

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19
Q

Yellow band - smooth air only

A

169-202

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20
Q

Green band

A

57-169

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21
Q

White Arc

A

55-111

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22
Q

Blue line

A

88

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23
Q

Red line

A

56

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24
Q

Fuel Flow - green band

A

3.0-25.0

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25
Alternator
Ground: 60 amps Air: 65 amps
26
Main battery
Min: 25 Max: 32
27
Emergency battery
Min: 20 required for flight 23.3 Max: 32
28
Propeller Type
Constant Speed Hydraulically Actuated Full Feathering
29
what is a constant speed propeller
variable-pitch propeller that automatically changes its bade pitch to maintain a chosen rotational speed
30
What are different kinds of propeller systems
fixed pitch constant speed full feathering
31
Tell me about the full feathering propeller
feathering the prop (turning to high pitch) with the blades almost parallel to the airstream will eliminate asymmetric drag forces caused by windmilling when the inop engine is shut down
32
How is pitch controlled
1. oil pressure - low pitch high RPM (unfeathered) 2. Nitrogen Pressure and Spring - High Pitch - low RPM (towards feather) - helps to prevent overspeeding
33
Tell me about feathering operation
full aft movement of the prop control min RPM to feather is 950RPM Oil is accumulated under pressure
34
Tell me about unfeather Operation
prop control forward release of oil under pressure in the accumulator bladed move out of feather
35
what prevents the engine from feathering
Anti Feathering pins and the engine RPMS being lower than 950RPM which operates off of centrifugal force
36
what is centrifugal force
force that acts outwardly away from the center of rotation on an object moving in a curved path
37
what happens when you unfeather a system
increased capacity governors nitrogen charged accumulators oil under pressures is released back to governor its anywhere from 10-17seconds to feather its 8-12seconds to unfeather
38
how many governors do we have in the PA-44-180
2 1 governor per engine
39
what does a governor do
supplies and boosts oil to maintain constant RPM settings
40
what are different types of fuel systems
gravity fed and pump assisted
41
Tell me about fuel pumps
There are the main pumps, auxiliary pumps and emergency back-up these pumps are electric and hydraulically driven
42
what are the two induction systems
carburetion and fuel injection
43
give me pros and cons to a carbureted fuel system
pros: lighter, easy to work on, cheap cons: not as precise, abrupt maneuvers and can have carb icing
44
give me pros and cons to a fuel injected fuel system
pros: efficient, precise, no carb icing cons: heavier, harder to work on, vapor lock
45
what is vapor lock
liquid fuel changes state to a gas while still in the fuel delivery system. fuel is overheated and turns into a vapor in the fuel injector or lines
46
Tell me about the PA-44-180 fuel system
110 gallons 108 usable 1 gal unusable per tank
47
how many fuel pumps does the PA-44-180 have
2 engine fuel pumps 2 aux. electric driven fuel pumps - these have to be on for t/o, landing and intentional maneuvering 1 heater fuel pump
48
tell me about the engine
4 stroke system with 1 event 1. intake - mixing of fuel and air 2. compression 5. ignition 3. power - combustion 4. exhaust - as gas leaves
49
what way does the left engine rotate? right engine?
Left engine : clockwise Right engine: counterclockwise
50
what does direct drive mean
the prop is directly connected to the crankshaft and both turn at the same rate. there is no reduction gearing
51
what is the fuel servo
fuel to air ration air that's either filtered or unfiltered often referred to as the butterfly valve
52
tell me about the fuel injected system
tank - fuel pump - through the system to fuel control unit - regulates amount of fuel needed based on mixture fuel manifold - fuel is held before being distributed discharge nozzles - spider lines
53
tell me about the oil system
it cleans, cools, and lubricates
54
tell me the flow of oil
sump- pump-screen-cooler-filter-engine-prop-sump
55
constant speed propellers increase power in flight
blade angle increases torque required to spin the prop increase a/c speed torque on engine will increase
56
tell me about the alternators on the PA-44-180
there are two rocker switches primary electrical power source 2 belt driven, 28 volt, 70 amp
57
what protects the alt from failure
voltage regulator - effective load sharing while delivering 28v to the system overvoltage relay: prevents damage, takes off line if exceeds 32v (ALTR fails cas message)
58
tell me about the battery
13.6 amp. hr 24 volt emergency battery
59
how many electrical buses do we have
6
60
what is a bus bar
distributes voltage and organizes a system
61
what's on the essential bus
right altr r alt. field emergency battery non essential bus batt av bus left altr l alt. field lighting bus emergency battery relay pitot heat ADC 1 AHRDS 1 Audio/marker com 1 GEA 1 integ av 1 PFD 1 stby L fuel pump xpdr R fuel pump gear pump light bus
62
non essential bus
engine start pitch trim cabin heater vent fan
63
emergency bus
avionics lts adc 1 ahrs1 audio/marker com 1 gea 1 integ av 1 pfd 1 stdby instr
64
what do the dual load meters indicate
each alt load
65
what airspeed can you manually extend the gear
100 knots
66
how long is the gear cycle
6-7 seconds
67
how does retracting the landing gear work
pressure in Up lines, holds hear in up Position
68
how does extending the landing gear work
pressure in down lines, downclock hooks spring pressure on hooks assist spring aid in extending, gravity pulls
69
what is the PA-44-180 landing gear
electrically operated hydraulically powered system
70
how many volts is the landing gear
12v
71
when can the landing gear warning horn be activated
when throttles below 14" and gear not down and locked gear selector switch in "up" and aircraft on the ground Gear selector switch in "up" and flaps extended to 2nd or 3rd notch
72
CAS messages
warning - red caution - amber changes at 400agl
73
landing gear safety switch
squat switch
74
what is a squat switch
left main gear- prevents pump from activating on the ground takeoff - squat switch closes and allows pump to activate
75
stall warning horn is activated by
2 lift dectors on the left wing
76
when do each detector work
outboard detector 0-10 flaps inboard detector 25-40 flaps
77
what are environmental Systems
pneumatic from engines exhaust shrouds janitrol combustion heater
78
tell me about the janitrol heater
pulls 1/2 GPH from left tank 45,000 BTU heated air for cabin heat and for windshield

BGFC (13 decks)

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