Fuel System Flashcards

1
Q

How many gallons usable fuel total

A

78.2

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2
Q

What kind of fuel can we use

A

Jet A and Jet A1

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3
Q

Can we use prist

A

Yes

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4
Q

What are the sizes of each main

A

25.4 usable gallons

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5
Q

Size of auxiliary tanks

A

Each is 13,7 gallons

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6
Q

Can the engine consume fuel directly from the auxiliary tanks

A

No

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7
Q

To what pressure the fuel is pressurized

A

15000 psi

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8
Q

What does that pressure do

A

Heats the fuel

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9
Q

Solution to that heated fuel

A

The excess fuel goes back to the fuel tanks via a fuel cooler exchanger

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10
Q

What quantity goes back

A

13 gallons per hour

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11
Q

How many positions of fuel selector

A

3

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12
Q

During x-feed, any special care?

A

Fuel pumps must be off

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13
Q

How many fuel pumps are there?

A

4 low pressure (one per ECU), 2 high pressure

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14
Q

How do you turn only 2 electrical fuel pumps on?

A

2 are always on.

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15
Q

Changing ECUs does what to the fuel pumps?

A

Switches them

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16
Q

When the fuel pumps are on, how many are on?

A

4 low pressure + 2 high pressure

17
Q

Max fuel imbalance

A

5 gallons

18
Q

Coldest fuel temp allowed

A

Minus 25 degrees celsius

19
Q

Hottest fuel allowed

A

60 degrees celsius

20
Q

How many fuel drains

A

2 per side + 1 per auxiliary

21
Q

How can one check the level of the auxiliary tanks

A

No fuel gauges. W device only