Engine Flashcards
1
Q
Engine Type
A
Garrett (Honeywell) TPE-331-10-501K/511K Single Shaft
2
Q
Compressor Type
A
Two Stage Centrifugal
3
Q
Combustion Chamber Type
A
Single Annular
4
Q
Turbine Type
A
Three Stage Axial Flow
5
Q
Maximum Horsepower Rating
A
820 SHP (102.5% Torque)
6
Q
Propeller Maximum Rotational Speed
A
1591 RPM (100%) (1:26.2287 Reduction)
7
Q
Turbine Maximum Rotational Speed
A
41,730 RPM (100%)
8
Q
Propeller Type
A
Dowty-Rotol R306/3-82-F/7-(c) VP
9
Q
Propeller Diameter
A
105 - 106”
10
Q
Propeller Blade Range - Flight Idle
A
+6 (±0.5) Degrees
11
Q
Propeller Blade Range - Feathered
A
+83 Degrees 10 Minutes (±20 Minutes)
12
Q
Propeller Blade Range - Reverse
A
-13.75 (±1.0) Degrees
13
Q
Propeller Blade Range - Start Locks
A
-1.25 (±1.0) Degrees
14
Q
Oil Capacity (Tank Only)
A
6 Quarts per Engine
15
Q
Oil Capacity (Engine Total)
A
10 Quarts per Engine
16
Q
Oil Drain/Refill Quantity
A
8.5 Quarts per Engine
17
Q
Maximum Continuous Power
A
RPM Max. 100%
Torque Max. 102.5%
EGT Max. 650 Degrees
18
Q
Maximum Recommended Cruise Power
A
RPM 96-98%
EGT 650 Degrees
19
Q
Maximum Speed for Full Reverse
A
90KIAS
20
Q
Minimum RPM during Landing Reverse
A
95%
21
Q
Check prior to Reverse Power application
A
Beta Lights Illuminated
22
Q
Engine RPM Limitations
A
- 0: None
- 0 - 101.5: 5 Minutes
- 5 - 105.5: 30 Seconds
- 5 - 106.0: 5 Seconds
- 0: Never Exceed
23
Q
Windmilling RPM Limitations
A
- 0 - 100.0: 1 Minute
- 0 - 28.0: Do Not Allow Windmilling in this Range
- 0 - 18.0: 5 Minutes
- 0 - 10.0: 30 Minutes
- 0 - 5.0: Unlimited
24
Q
Oil Pressure Minimum Idle
A
40psi
25
Oil Pressure Minimum Flight below 23,000ft
70psi
26
Oil Pressure Minimum Flight above 23,000ft
50psi
27
Oil Pressure Maximum All Conditions
120psi
28
Oil Temperature Minimum Starting
-40 Degrees Centigrade
29
Oil Temperature Minimum Ground Operation
-40 Degrees Centigrade
30
Oil Temperature Minimum Flight Operation
+50 Degrees Centigrade
31
Oil Temperature Maximum Flight Operation
+110 Degrees Centigrade
32
Oil Temperature Maximum Take-Off
+127 Degrees Centigrade (5 Minutes Maximum)
33
Oil Temperature Maximum Ground Operation
+127 Degrees Centigrade
34
Fuel Pressure Minimum
15psi
35
Fuel Pressure Maximum
90psi
36
Manual Ignition Time Limits (M-BETS)
Unlimited when OAT +10 Degrees Centigrade
37
Minimum Ambient Starting Temperature
-40 Degrees Centigrade
38
Maximum Ambient Starting Temperature
+55 Degrees Centigrade
39
Air Start Minimum Speed
100KCAS (97KIAS)
40
Air Start Maximum Speed
180KCAS (178KIAS)
41
Air Start Maximum Approved Altitude
20,000ft
42
Starter Time Limits
```
60 Seconds ON
5 Minutes OFF
60 Seconds ON
5 Minutes OFF
60 Seconds ON
30 Minutes OFF
```
43
Number of Igniter Plugs per Engine
2
44
Bleed Air Accessories
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
Power Management System Components
Engine Fuel Control Assembly
Propeller Governor
Propeller Pitch Control
Propeller Oil Transfer Tube
46
Beta (Ground) Mode Operation
Power Lever Selects Propeller Blade Angle
Condition Lever Selects Engine RPM (via Underspeed Governor)
Fuel Control Unit Maintains Engine RPM
47
Propeller-Governing (Flight) Mode Operation
Power lever Selects Fuel Flow (Engine Power) via Main Metering Valve
Condition Lever Selects Engine RPM
Propeller Governor Maintains Engine RPM
48
Underspeed Governor Range
65.0% - 97.0% (+/-0.5%)
49
Propeller Governor Range
95.0% - 100.0% (Minimum Flight RPM 96%)
50
Fuel Control Assembly Components
High Pressure Fuel Pump
| Fuel Control Unit
51
Fuel Control Unit Components
Underspeed Governor
Overspeed Governor
Main Metering Valve
52
Maximum Fuel Flow Schedule Inputs
Mechanical Control
Compressor Discharge Pressure
Compensated Compressor Inlet Pressure/Temperature
53
Minimum Fuel Flow Schedule Inputs
Mechanical Control
| Compressor Discharge Pressure
54
Underspeed Governor Description
Flyweight-Type, Adjusted by Speeder-Spring Tension
| Controls Fuel Metering Valve
55
Main Metering Valve Control Range
Engine Speeds above 96.5% in Beta Mode
| All Engine Speeds in Propeller Governing Mode
56
Overspeed Governor Description
Flyweight-Type
| Reduces Fuel Flow to Control Engine Speed in the event of Propeller Governor Malfunction
57
Torque-Limiting System Limits
100 (+/-2.5)% - 800 (+/-20)SHP
58
Torque Limiting System Components
```
Torque Sensor
Torque Limiting Computer
Torque-Motor Driven Fuel Bypass Valve
TQ Limit Switch
Bypass Light (Blue)
```
59
Fuel Bypass Valve Range
0 - 180pph
60
TQ LIMIT Switch Functions
OFF (Both Torque and Temperature Limiting Computers)
ON
TEST
61
Temperature Limiting System Limits
650 (+/-5) Degrees Centigrade
62
Temperature Limiting System Components
```
Single Red Line Computer
Temperature Limiting Computer
Torque-Motor Driven Fuel Bypass Valve
TEMP/NTS Switch
Bypass Light (Blue)
```
63
EGT Compensator Description
Calibrated Resistor, Selected for Each Engine
| Corrects Raw EGT Data for us by SRL and Direct Readings
64
Airspeed/Ambient Pressure Transducer Description
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
EGT Transducer Location
Discharge of Third Stage Turbine
66
SRL Computer Function
Produces Computed "EGT", based on EGT/TIT Relationships, which will maintain (Unmeasured) TIT within limits
67
SRL System Components
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
Oil System Sump Type
Dry Sump
69
Oil System Uses
```
Lubrication of Compressor Bearing
Lubrication of Turbine Bearing
Lubrication of Reduction Gearing
Propeller Control System Operation
Torque Sensing Components Operation
```
70
Oil System Components
```
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
Magnetic Chip Detector Location
Reduction Gearing Sump Drain Plug
| Lower Front of Reduction Gear Section
72
Oil Tank Capacity
8 Quarts
Full = 6 Quarts
Add Oil = 5 Quarts
73
Maximum Allowable Oil Loss
0.02GPH (1 Gal per 50 Hours)
74
Oil Temperature Control Bypass Valve Operating Temperatures/Requirements
Below 150 Degrees Fahrenheit - Fully Open to Bypass
Above 170 Degrees Fahrenheit - Fully Closed
High Pressure Due to Blockage in Cooler - Open
75
Oil Filter Bypass Valve Operating Requirements
Pressure Drop Across Filter >50-60psi
| Pop Out Indicator on Engine Displays Bypass Operation
76
Series Mode Start Required Conditions
OAT 32 Degrees C
77
Engine AutoStart Sequence
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
Start Fuel Enrichment Valve Usage
AutoStart During Air Starts or Cold Temperature
Controlled to Maintain EGT Below 695(+/-5) Degrees C
Manual Use During Manual Starting
79
GPU Start GPU Requirements
28V, Min 14V/800A During Start
| Maximum 1,000A During Start
80
GPU Start Recommended Conditions
OAT
81
Air Start Envelope
Sea Level - 20,000ft
| 97 - 178KIAS
82
Fire Detection System Number and Location of Thermal Switches
Three per Engine
Two on Forward Side of Nacelle (Upper Engine Mounts)
One on Rear Side of Nacelle (Above Oil-Air Heat Exchanger)
83
Fire Detection System Annunciation Requirement
One Thermal Switch Activated Only
84
Fire Detection System Test Function
Tests Circuit and Annunciators
| Does Not Test Individual Thermal Switches
85
Propeller Control System Components
```
Blade Counterweights/Feathering Spring - Feather/Coarse
Oil Pressure (Boosted by Prop Gov Oil Pump) - Fine/Rev
```
86
Propeller Feathering/Unfeathering Functions
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
NTS System Function
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
Beta Followup Function
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
NTS Lockout and Prop Governor Reset Function
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
Propeller Syncrophaser System Functions
Maintain Synchronous RPM Between Engines
| Allows Adjustment of Phase Relationship Between Props
91
Propeller Syncrophaser System Components
```
Magnetic Pickups (At Propeller Slip Rings)
Propeller Governors (With Electro-Magnetic Biasing Coil)
Control Box
```
92
Propeller Syncrophaser Limits
2% RPM When Engaged
| 1% RPM on Engagement
93
Number of Fuel Nozzles per Engine
```
5 Primary
10 Secondary (Automatically Energised by Fuel Pressure)
```
