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Commander 695A > Engine > Flashcards

Engine Flashcards

1
Q

Engine Type

A

Garrett (Honeywell) TPE-331-10-501K/511K Single Shaft

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2
Q

Compressor Type

A

Two Stage Centrifugal

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3
Q

Combustion Chamber Type

A

Single Annular

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4
Q

Turbine Type

A

Three Stage Axial Flow

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5
Q

Maximum Horsepower Rating

A

820 SHP (102.5% Torque)

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6
Q

Propeller Maximum Rotational Speed

A

1591 RPM (100%) (1:26.2287 Reduction)

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7
Q

Turbine Maximum Rotational Speed

A

41,730 RPM (100%)

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8
Q

Propeller Type

A

Dowty-Rotol R306/3-82-F/7-(c) VP

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9
Q

Propeller Diameter

A

105 - 106”

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10
Q

Propeller Blade Range - Flight Idle

A

+6 (±0.5) Degrees

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11
Q

Propeller Blade Range - Feathered

A

+83 Degrees 10 Minutes (±20 Minutes)

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12
Q

Propeller Blade Range - Reverse

A

-13.75 (±1.0) Degrees

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13
Q

Propeller Blade Range - Start Locks

A

-1.25 (±1.0) Degrees

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14
Q

Oil Capacity (Tank Only)

A

6 Quarts per Engine

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15
Q

Oil Capacity (Engine Total)

A

10 Quarts per Engine

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16
Q

Oil Drain/Refill Quantity

A

8.5 Quarts per Engine

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17
Q

Maximum Continuous Power

A

RPM Max. 100%
Torque Max. 102.5%
EGT Max. 650 Degrees

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18
Q

Maximum Recommended Cruise Power

A

RPM 96-98%

EGT 650 Degrees

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19
Q

Maximum Speed for Full Reverse

A

90KIAS

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20
Q

Minimum RPM during Landing Reverse

A

95%

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21
Q

Check prior to Reverse Power application

A

Beta Lights Illuminated

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22
Q

Engine RPM Limitations

A
  1. 0: None
  2. 0 - 101.5: 5 Minutes
  3. 5 - 105.5: 30 Seconds
  4. 5 - 106.0: 5 Seconds
  5. 0: Never Exceed
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23
Q

Windmilling RPM Limitations

A
  1. 0 - 100.0: 1 Minute
  2. 0 - 28.0: Do Not Allow Windmilling in this Range
  3. 0 - 18.0: 5 Minutes
  4. 0 - 10.0: 30 Minutes
  5. 0 - 5.0: Unlimited
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24
Q

Oil Pressure Minimum Idle

A

40psi

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25
Q

Oil Pressure Minimum Flight below 23,000ft

A

70psi

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26
Q

Oil Pressure Minimum Flight above 23,000ft

A

50psi

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27
Q

Oil Pressure Maximum All Conditions

A

120psi

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28
Q

Oil Temperature Minimum Starting

A

-40 Degrees Centigrade

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29
Q

Oil Temperature Minimum Ground Operation

A

-40 Degrees Centigrade

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30
Q

Oil Temperature Minimum Flight Operation

A

+50 Degrees Centigrade

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31
Q

Oil Temperature Maximum Flight Operation

A

+110 Degrees Centigrade

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32
Q

Oil Temperature Maximum Take-Off

A

+127 Degrees Centigrade (5 Minutes Maximum)

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33
Q

Oil Temperature Maximum Ground Operation

A

+127 Degrees Centigrade

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34
Q

Fuel Pressure Minimum

A

15psi

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35
Q

Fuel Pressure Maximum

A

90psi

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36
Q

Manual Ignition Time Limits (M-BETS)

A

Unlimited when OAT +10 Degrees Centigrade

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37
Q

Minimum Ambient Starting Temperature

A

-40 Degrees Centigrade

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38
Q

Maximum Ambient Starting Temperature

A

+55 Degrees Centigrade

39
Q

Air Start Minimum Speed

A

100KCAS (97KIAS)

40
Q

Air Start Maximum Speed

A

180KCAS (178KIAS)

41
Q

Air Start Maximum Approved Altitude

A

20,000ft

42
Q

Starter Time Limits

A 
60 Seconds ON
5 Minutes OFF
60 Seconds ON
5 Minutes OFF
60 Seconds ON
30 Minutes OFF
43
Q

Number of Igniter Plugs per Engine

A

2

44
Q

Bleed Air Accessories

A

ECU for Pressurisation (Direct)
REG AIR Annunciator (Regulated)
Door Seal (Regulated)
Co-Pilot AI and Gyro Pressure Gauge (Regulated)
De-Ice Boots/Exhaust Overboard (Regulated)

45
Q

Power Management System Components

A

Engine Fuel Control Assembly
Propeller Governor
Propeller Pitch Control
Propeller Oil Transfer Tube

46
Q

Beta (Ground) Mode Operation

A

Power Lever Selects Propeller Blade Angle
Condition Lever Selects Engine RPM (via Underspeed Governor)
Fuel Control Unit Maintains Engine RPM

47
Q

Propeller-Governing (Flight) Mode Operation

A

Power lever Selects Fuel Flow (Engine Power) via Main Metering Valve
Condition Lever Selects Engine RPM
Propeller Governor Maintains Engine RPM

48
Q

Underspeed Governor Range

A

65.0% - 97.0% (+/-0.5%)

49
Q

Propeller Governor Range

A

95.0% - 100.0% (Minimum Flight RPM 96%)

50
Q

Fuel Control Assembly Components

A

High Pressure Fuel Pump

Fuel Control Unit

51
Q

Fuel Control Unit Components

A

Underspeed Governor
Overspeed Governor
Main Metering Valve

52
Q

Maximum Fuel Flow Schedule Inputs

A

Mechanical Control
Compressor Discharge Pressure
Compensated Compressor Inlet Pressure/Temperature

53
Q

Minimum Fuel Flow Schedule Inputs

A

Mechanical Control

Compressor Discharge Pressure

54
Q

Underspeed Governor Description

A

Flyweight-Type, Adjusted by Speeder-Spring Tension

Controls Fuel Metering Valve

55
Q

Main Metering Valve Control Range

A

Engine Speeds above 96.5% in Beta Mode

All Engine Speeds in Propeller Governing Mode

56
Q

Overspeed Governor Description

A

Flyweight-Type

Reduces Fuel Flow to Control Engine Speed in the event of Propeller Governor Malfunction

57
Q

Torque-Limiting System Limits

A

100 (+/-2.5)% - 800 (+/-20)SHP

58
Q

Torque Limiting System Components

A 
Torque Sensor
Torque Limiting Computer
Torque-Motor Driven Fuel Bypass Valve
TQ Limit Switch
Bypass Light (Blue)
59
Q

Fuel Bypass Valve Range

A

0 - 180pph

60
Q

TQ LIMIT Switch Functions

A

OFF (Both Torque and Temperature Limiting Computers)
ON
TEST

61
Q

Temperature Limiting System Limits

A

650 (+/-5) Degrees Centigrade

62
Q

Temperature Limiting System Components

A 
Single Red Line Computer
Temperature Limiting Computer
Torque-Motor Driven Fuel Bypass Valve
TEMP/NTS Switch
Bypass Light (Blue)
63
Q

EGT Compensator Description

A

Calibrated Resistor, Selected for Each Engine

Corrects Raw EGT Data for us by SRL and Direct Readings

64
Q

Airspeed/Ambient Pressure Transducer Description

A

Delta P / P Transducer
(PTotal-PStatic) / PStatic
Inputs Engine Inlet Total Pressure
Inputs Engine Static Pressure (from Tailpipe)
Output to SRL Computer for EGT Calculation

65
Q

EGT Transducer Location

A

Discharge of Third Stage Turbine

66
Q

SRL Computer Function

A

Produces Computed “EGT”, based on EGT/TIT Relationships, which will maintain (Unmeasured) TIT within limits

67
Q

SRL System Components

A

SRL Computer
Inputs Delta P / P (Airspeed and Ambient Pressure)
Inputs Engine Inlet Temperature
Inputs Engine RPM
Inputs Compensated EGT
Inputs 10% and 60% Speed Switches (Engine Start)
Inputs 80% Speed Switch for SRL Computer Activation

68
Q

Oil System Sump Type

A

Dry Sump

69
Q

Oil System Uses

A 
Lubrication of Compressor Bearing
Lubrication of Turbine Bearing
Lubrication of Reduction Gearing
Propeller Control System Operation
Torque Sensing Components Operation
70
Q

Oil System Components

A 
High Pressure Pump
Three Scavenge Pumps
Oil Filter
Oil Filter Bypass Valve
Pressure Regulator
Oil Tank
Magnetic Chip Detector
External Radiator
Radiator Bypass
Fuel-Oil Heat Exchanger (Inside Oil Tank)
71
Q

Magnetic Chip Detector Location

A

Reduction Gearing Sump Drain Plug

Lower Front of Reduction Gear Section

72
Q

Oil Tank Capacity

A

8 Quarts
Full = 6 Quarts
Add Oil = 5 Quarts

73
Q

Maximum Allowable Oil Loss

A

0.02GPH (1 Gal per 50 Hours)

74
Q

Oil Temperature Control Bypass Valve Operating Temperatures/Requirements

A

Below 150 Degrees Fahrenheit - Fully Open to Bypass
Above 170 Degrees Fahrenheit - Fully Closed
High Pressure Due to Blockage in Cooler - Open

75
Q

Oil Filter Bypass Valve Operating Requirements

A

Pressure Drop Across Filter >50-60psi

Pop Out Indicator on Engine Displays Bypass Operation

76
Q

Series Mode Start Required Conditions

A

OAT 32 Degrees C

77
Q

Engine AutoStart Sequence

A

Starter-Generator Motors Engine
Fuel Flow from Pumps stopped by Fuel Solenoid Valve
10% Speed Switch Opens Fuel Solenoid Valve and Powers Ignition
Fuel Metering Valve Modulated to Control Acceleration
60% Speed Switch Removes Power from Starter/Ignition
65% Fuel Metering Valve Adjusted to Stabilise RPM

78
Q

Start Fuel Enrichment Valve Usage

A

AutoStart During Air Starts or Cold Temperature
Controlled to Maintain EGT Below 695(+/-5) Degrees C
Manual Use During Manual Starting

79
Q

GPU Start GPU Requirements

A

28V, Min 14V/800A During Start

Maximum 1,000A During Start

80
Q

GPU Start Recommended Conditions

A

OAT

81
Q

Air Start Envelope

A

Sea Level - 20,000ft

97 - 178KIAS

82
Q

Fire Detection System Number and Location of Thermal Switches

A

Three per Engine
Two on Forward Side of Nacelle (Upper Engine Mounts)
One on Rear Side of Nacelle (Above Oil-Air Heat Exchanger)

83
Q

Fire Detection System Annunciation Requirement

A

One Thermal Switch Activated Only

84
Q

Fire Detection System Test Function

A

Tests Circuit and Annunciators

Does Not Test Individual Thermal Switches

85
Q

Propeller Control System Components

A 
Blade Counterweights/Feathering Spring - Feather/Coarse
Oil Pressure (Boosted by Prop Gov Oil Pump) - Fine/Rev
86
Q

Propeller Feathering/Unfeathering Functions

A

Feather Valve Dumps Oil From Propeller Dome Back to Engine Gear Case. Spring/Counterweights Drive to Feather
Electrical Unfeathering Pump Pumps Oil into Propeller Dome to Unfeather

87
Q

NTS System Function

A

Sensed Negative Torque on Main Shaft
Oil Flow to Pitch Change Piston Shut Off
Feather Valve Modulated to Increase Propeller Pitch and Reduce Drag

88
Q

Beta Followup Function

A

Propeller Pitch Control (From Power Lever) Closely Follows Propeller Governor in Flight.
Acts as a Hydraulic Minimum Blade Angle “Limit” in the Event of Propeller Governor or NTS System Failure
Reason Not to Reduce Power Lever On Engine Failure

89
Q

NTS Lockout and Prop Governor Reset Function

A

Active when Power Lever Retarded Below Flight Idle
Rotary Valve Dumps NTS Supply Pressure
Locks out NTS System
Pressure Drop Sensed by a Piston in Prop Governor
Resets Prop Governor to 105%, supplying maximum pressure for Fast Blade Angle Response for RTO/Landing Reverse

90
Q

Propeller Syncrophaser System Functions

A

Maintain Synchronous RPM Between Engines

Allows Adjustment of Phase Relationship Between Props

91
Q

Propeller Syncrophaser System Components

A 
Magnetic Pickups (At Propeller Slip Rings)
Propeller Governors (With Electro-Magnetic Biasing Coil)
Control Box
92
Q

Propeller Syncrophaser Limits

A

2% RPM When Engaged

1% RPM on Engagement

93
Q

Number of Fuel Nozzles per Engine

A 
5 Primary
10 Secondary (Automatically Energised by Fuel Pressure)

Commander 695A (11 decks)

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