Fuel & Hydraulic System Flashcards
Right and Left Tank capacities
650 - 22,100 lbs / 3279 Gal
ER - 24,100 lbs / 3597 Gal
Total Fuel Tank capacity
650 - 44,200 lbs / 6558 Gal
ER - 48,200 lbs / 7152 Gal
All Operable boost pumps shall be ____ for _____ unless fuel balancing is in progress
ON, all phases of flight
Fuel Low Level Alert occurs at
650lbs / 96 gallons
Maximum Fuel Tank Temp
+54°C
Minimum Fuel Tank Temp (amber)
-34.5°C to -36°C
Min Fuel Tank Temp (Red)
-37°C
When fuel tank temp is at or below ____°C in flight with less than _____lb total fuel remaining, the a/c shall be descended to an altitude where SAT is ___°C or warmer and maintain a min speed of ____ Mach.
-30°C, 5000 lbs, -60°C, 0.80M
Maximum Hydraulic and Reservoir Quantities
Left System: 4.55 Gal / Reservoir shows full at 3.0 Gal
Right System: 2.77 Gal / Reservoir shows full at 1.5 Gal
L/R Hyd Sys Accumulator Pre-Charge
1200 psi at 70° F / 21° C ±25 psi per each ∆ 10°F/5°C
Min Engine Fuel Temp
-40°C
Max Engine Fuel Temp
+140°C
Maximum Transient Engine Fuel Temp
+165°C
When does the auto heated fuel return system activate and deactivate?
Activates when hopper fuel temp is ≤0°C, shuts off when it’s >10°C.
PTU, if armed, activates when
L system pressure drops below 2400 PSI, AND
R sys pressure is >2850 PSI and temp is <107°C and
L sys quantity is > 0.36 gallons.
