Systems Review

Question 1

Power Plant

Answer 1

Williams FJ44-1A
Bypass Ratio 3.3:1
1900 lbs Thrust

Question 2

N1

Answer 2

Normally Powered 28 VDC

104.4% Max

Question 3

N2

Answer 3

Normally Powered 28 VDC

99. 3% Max
100. 2% Idle

Question 4

ITT

Answer 4

Max Start: See Table
Max T/O - 820c 5 minutes
Max Cont. - 796c
Idle - 620c

Question 5

Major Engine Sections

Answer 5

1. Intake & Fan - Single Fan, Axial Flow
2. Compressor - Single Stage, Centrifugal Flow
3. Diffuser - Converts Centrifugal to Axial Flow
4. Combustion Turbine - Revers Flow
5. Exhaust
6. Accessory Drive

Question 6

Accessory Section

Answer 6

1. Fuel Pump/FCU
2. Oil Pump
3. Starter Generator
4. Hydraulic Pump
5. N2 Tach Generator

Question 7

Bleed Air Systems

Answer 7

1. Engine Anti-Ice
2. Environmental
3. Pressurization
4. Deice Boots
5. Windshield Heat/Rain Removal
6. Cabin Door Seal
7. Wing Anti-Ice
8. Hydraulic Reservoir Pressurization

Question 8

Oil

Answer 8

2.5 quart Tank Capacity
1 quart between FULL and ADD lines
Oil/Fuel Heat exchanger does NOT heat fuel
Max consumption = .23 GPH
Max windmilling = 15 minutes (shutdown)

Question 9

Oil Pressure Limits

Answer 9

Min Pressure Below 80% N2 = 35 psi
Min Pressure Above 80% N2 = 45 psi
Normal Pressure = 45 - 90 psi
Transient Min Pressure = 25 psi for 5 minutes
Transient Max Pressure - 100 psi for 5 minutes
OIL PRESS WARNING = Pressure<25psi (Master Warning)

Question 10

Oil Temperature Limits

Answer 10

Operate Below 85% N2 until Oil Temp >10C
Min Oil Temp for Start = -40C (preheated to <35c)
Min Oil Temp = 9c
Normal Oil Temp = 10 - 121c
Max Oil Temp = 122c

Question 11

Ignition NORMAL

Answer 11

Auto ignition for start and Engine Anti-Ice

Question 12

Ignition ON

Answer 12

Continuous ignition for T/O, Landing, Stall, Precip, & Emergency descent.

Question 13

Ignition General

Answer 13

Two exciters per engine (1 o’clock position) 28 VDC. Green IGN light when exciters are powered.

Two igniters per engine (5 & 7 o’clock position)

Question 14

Engine Sync

Answer 14

FAN/TURB/OFF
FAN syncs N1
TURB syncs N2
Right engine slaves to left

Question 15

Engine Fuel System Components

Answer 15

1. Fuel Pump - 2 stage
2. FCU
3. TT2 Temperature Sensor
4. Acceleration Bleed Valve
5. Fuel Filter
6. Fuel Filter Bypass
7. Start Fuel Nozzle
8. Fuel Slinger
9. Fuel Control Shutoff

Question 16

FCU Inputs

Answer 16

1. P3 Bleed Air
2. TT2 Pressure Altitude (P2T2)
3. Compressor Inlet Temperature
4. N2 RPM
5. Throttle Position