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Fairchild Republic A-10 Thunderbolt II: Difference between revisions
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Fairchild Republic A-10 Thunderbolt II (view source)
Revision as of 21:04, 7 January 2009
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=== | === Engines starting procedure === | ||
[[Image:engine-gauges.jpg|thumb|APU running, Engines gauges at stop.]] | [[Image:engine-gauges.jpg|thumb|APU running, Engines gauges at stop.]] | ||
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FlightGear A-10 starts with all internal tanks full. | FlightGear A-10 starts with all internal tanks full. | ||
2 wing tanks (left and right), 2 fuselage tanks (left main-afterward and right main-forward) | |||
Up to 3 external tanks (2 wings and 1 fuselage). | |||
Normally the left wing and left main tanks feeds the left engine and the APU, | |||
the right wing and right main tanks feeds the right engine. The two feed lines could | |||
be interconnected by opening the cross feed valve. | |||
The wing boost pumps will supply the respective engine until the wing tanks are empty, | |||
at which time the wing boost pumps will automatically shut off. The main boost pumps will | |||
then supply the respective engine with the remainder of the fuel in the airplane. | |||
In case of a wing tank boost pump failure, the wing tank fuel will gravity feed to its respective | |||
main tank fuel when its fuel level will be below 600 lbs. Check valves prevent reverse fuel | |||
flow from the main tank to the wing tank. | |||
In the event of a main tank boost pump failure, the affected engine will suction-feed from the | |||
affected tank for all power setting up to an altitude of nearly 10,000 feet. | |||
Unequal fuel level between right main and left main tank (imbalance superior 750 lbs) will cause | |||
center of gravity shift that may exceed allowable limits. In this case, a valve named "tank gate" | |||
could link the two main tanks. | |||
Fuel from the external tanks is transfered to the main or wing tanks by pressure from | |||
the bleed air system. Wing tanks can be topped when the fuel level is below 1590 lbs. | |||
Main tanks can be topped when the fuel level is below 3034 lbs. | |||
The cycling is repeated until fuel is depleted from the external wing tanks first, and | |||
external fuselage tank secondly. | |||
For negative G flight, collector tanks will supply the engine with sufficient fuel for | |||
10 seconds operation at MAX power. | |||
The '''Fuel Control panel''' is located on the forward part of left console. 1 lever, 4 push buttons and 8 switches are functional. | The '''Fuel Control panel''' is located on the forward part of left console. 1 lever, 4 push buttons and 8 switches are functional. | ||
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[[Image:A-10-fuel-control-doc.jpg|thumb|Fuel Control panel.]] | [[Image:A-10-fuel-control-doc.jpg|thumb|Fuel Control panel.]] | ||
(<b>A</b>) | (<b>A</b>) Fill Disable buttons, left and right wings tanks. Fill disabled (button up showing red stripe). Refuel disabled for the wings tanks. | ||
(<b>B</b>) | (<b>B</b>) Fill Disable buttons, left and right main tanks (practically forward and aft fuselage tanks). Fill enabled (button down hidding red stripe). Refuel enabled for the main tanks. | ||
(<b>C</b>) | (<b>C</b>) Refuel Receiver Door lever. | ||
(<b>D</b>) Horizon Line | (<b>D</b>) Horizon Line | ||