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22 Cards in this Set
- Front
- Back
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How many tanks does the E-6B have?
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7
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How many boost pumps are in each tank?
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2 boost pumps in each main tank and the center tank
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Liquid cooling system heat exchangers are located where?
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Main tanks 2 and 3 and provide mission system cooling.
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The LCS heat exchangers are supplied cooling fuel from which tanks?
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From tank Nos. 1 and 4 engine fuel feed systems with engines having priority.
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Heat exchangers for hydraulic fluid cooling are located where?
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Main tanks Nos. 2 and 3.
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Where are the two vent port outlets for each tank?
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one at the forward inboard tank corner and the other at the center of the outboard tank edge.
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The inboard outlet provides venting when?
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during high angle climb attitudes and is always open.
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The outboard outlet provides venting when?
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during normal climb, cruise, and descent attitudes and is protected by a float vent valve to prevent fuel blow by gravity out the vent system at high pitch attitudes.
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What are surge chambers?
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they are in the spanwise vent ducts to trap fuel moving outboard b/c of rapid attitude changes or rolling of the a/c. Fuel drains back into the tanks when normal conditions are reestablished.
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What does the crossfeed manifold allow?
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allows fuel to flow from any main tank to any engine or from the center wing tank to any engine.
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How can fuel be fed from any main fuel tank w/o the use of boost pumps?
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fuel may be gravity fed from any main fuel tank w/o the use of boost pumps.
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Center fuel tank cannot be used w/o what?
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boost pumps
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Fuel is fed to the APU how?
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through the APU fuel feed line which is connected to main tank No. 3 for starting and the crossfeed manifold for operation with AC electrical power.
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How many boost pumps are there?
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there are two electrically operated boost pumps in each of the four main tanks and in the center tank.
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The two center tank pumps deliver fuel how?
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at a higher pressure than the main tank pumps and feed fuel to the engines, regardless of main tank pump settings, if the appropriate crossfeed valves are open.
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What does the crossfeed manifold do?
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allows fuel flow from any main tank to any engine or from the center wing tank to any engine.
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Where are the crossfeed manifold valves?
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mounted in the inboard dry bays, provide a means of directing fuel to more than one engine from any one tank except the reverses.
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How are the dump chutes fed?
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they are gravity fed and must be fully extended before fuel can be dumped. (dump rate decreases as fuel level decreases)
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The reserve tank transfer valves open automatically when?
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When dump valves for the main tank Nos. 1 and 4 open.
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The master fuel switch must be in what position to use the ground gauges?
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The master fuel switch must be ON to use the ground gauges.
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The FE panel gauges are calibrated to be read correctly how?
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with wing-level unaccelerated flight with 2 degree noseup pitch attitude.
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What is the Total Fuel Remaining Gauge?
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The gauge sums the signals from the engine fuel flow transmitters and subtracts that quantity from the "total" set in by the FE.
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