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9 Cards in this Set
- Front
- Back
Inside each collector cell |
2 boost pumps, low level float switch, quick drain outlet, fuel capacitance probe, level control valve, sump drain |
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Number of fuel drains and where they are in the aircraft |
Minimum 4 fuel drains, one in each collector cells and one in each transfer manifold |
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Vents in each fuel cell and why vent the cell |
Two in each cell and to maintain a slight postive pressure in each cell to prevent collapse of the flexible tanks in case negative pressure existed. |
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Boostpump output and pressure |
Nominal output of 450lbs/h @ a nominal pressure of 22 psi. |
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Secondary function of boostpumps |
Transfer fuel from feeder cells to collector cell |
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Two advantages of collector cell design |
1.changes in centre of gravity minimized because both in the center of the aircraft. 2. Possibility of uncovering the boost pump intake during turbulence or extreme nose up/down attitudes are minimized. |
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Location of fuel filter |
Rear of the engine nacelle between the boostpump output and fuel flow transmitter. |
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When is the automatic change over system initiated |
When the pressure @ #1 boostpump falls below 2 psi |
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Maximum number of boostpumps that should be running @ the same time |
2 |