Fuel Flashcards
Approved Fuel Grades
Jet-A, Jet-A1, Jet-B, JP-4, JP-5, JP-8, AVGAS 80/87 & 100-130 (Emergency Use Only)
Total Fuel Capacity
482.0 USG (1,824.6L) / 3,229lbs
430 USG Some Models
Useable Fuel (LOW FUEL Scavenge Systems Operative)
474.0 USG (1,794.3L) / 3,176lbs
Useable Fuel (LOW FUEL Scavenge Systems Inoperative)
466.0 USG (1,764.0L) / 3,122lbs
Useable Fuel (One LOW FUEL Scavenge Pump Inoperative)
470.0 USG (1,779.1L) / 3,149lbs
Maximum Fuel Imbalance (Total >1,000lbs)
100lbs
Maximum Fuel Imbalance (Total
200lbs
Number of Fuel Tanks
10 Fuel Cells Between Nacelles
1 Fuel Cell in Outboard Part of Each Nacelle
Wet Wing Outboard of Nacelles
(14 Total, 7 per Wing including Wet Wing)
Fuel Boost Pump Failure Indication
Decrease of Approx. 30psi in Affected Engine Fuel Pressure
Fuel Vent System Components (Per Wing)
Two Vent Lines from Outboard of Wet Wing Tank
Connected to NACA Vent on Wing Underside
One Way Vent Valve to Interior of Wing Allows Ambient Pressure Into Tank During Descent
Fuel Quantity Sensor Type/Number (Per Wing)
Four Variable Capacitance, Probe-Type Transducers
24VDC Powered
Fuel Shutoff Valves Location/Number/Operation
Electrically Operated Fuel Shutoff at Tank Outlet
Controlled by Fuel-Hyd Switch
Main Fuel Shutoff Valve Between Fuel Control Unit and Flow Divider
Electrically Controlled, with Mechanical Override from Condition Lever
Fuel Interconnect Valve
Opens Between Two Centre Wing Cells
Allows Fuel Balance Between Sides by Gravity
Can Roll 5 Degrees to Lower Side to Increase Transfer
Fuel System Drains
Eight Total
Six Tank Drains (Underside of Wings)
Two Feed Line Drains (Inboard of Nacelles)
Fuel-Oil Heat Exchanger Minimum Oil Temperature
55 Degrees Centigrade for Satisfactory Performance