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T-38 > Dash One Sxn 1 > Flashcards

Dash One Sxn 1 Flashcards

1
Q

What kind of aircraft is the T-38?

A

A two-place, twin-turbojet supersonic trainer

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2
Q

What is the approximate gross weight of a fully serviced aircraft with two aircrew?

A

12,800 lbs

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3
Q

What kind of engines does the T-38 have?

A

Two General Electric J85-GE-5R/S eight stage axial flow turbojet engines

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4
Q

How much thrust do they produce at sea level standard day settings?

A

MIL: 2200 lbs
MAX: 3300 lbs

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5
Q

Where is EGT measured?

A

T5 or the turbine exit

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6
Q

What kind of power is required to energize the ignition holding relay? What about the igniter firing?

A

DC

AC

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7
Q

What happens when the start button is pushed? What about when the throttle is bumped to IDLE?

A

Start button arms the igniter relay and timer

Throttle to Idle energizes the exciter, and starts fuel flow and fires the main and AB igniters

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8
Q

Does pushing the start button again during a 30 second cycle reset the ignition timer?

A

No. The relay is energized until the timer expires and is locked in cycle

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9
Q

From where is air taken for the pneumatic system?

A

Eighth stage compressor

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10
Q

What is part of the pneumatic system?

A 
D-defog
C-canopy seal
G-g suit system 
A-Air conditioning 
P-pressurization 
\+2-hydraulic reservoir, anti ice
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11
Q

What are the pneumatic system controls powered by?

A

AC, except defog (pneumatically controlled)

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12
Q

What is a throttle burst?

A

Throttle movement in 1 second or less from idle to MIL

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13
Q

What is on the EED?

A 
RENO
RPM
EGT
Nozzles
Oil
(also Fuel Flow and Fuel)
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14
Q

For engine and fuel data to display on the MFD EED display page what must happen?

A

At least one EED must be on and operating

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15
Q

What does the EED operate on?

A

Right essential DC

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16
Q

What EED sensors require AC power?

A

Oil pressure, Fuel Flow, and fuel quantity

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17
Q

During battery power engine starts the EED display powers up at maximum Day Mode brightness regardless of switch position when what?

A

Battery voltage is less than 22 VDC

18
Q

Which EED is Slave and Master normally?

A

FCP is Master; RCP is Slave. EED will automatically switch it if it senses it is not receiving data from the Master.

19
Q

What does OFF mean on the EED?

A

SensOr failure

20
Q

What does FAIL mean on the EED?

A

Internal EED Failure

21
Q

When either EED is powered ON or OFF the EED momentarily activates what?

A

A FUEL LOW caution light

22
Q

The EED should come on within what time with ambient temperatures above 32 deg F?

A

15 seconds; if below this, it may take up to 4 minutes

23
Q

The RPM display shows a maximum of what RPM?

A

110%

24
Q

When will you get 0% RPM?

A

Whenever the sensor senses 0% RPM or when it is unable to detect the RPM sensor signal

25
Q

How many seconds does it usually take for the INIT to vanish from the EED?

A

8 seconds

26
Q

What’s the EGT range on the EED?

A

0-1200 deg C

27
Q

When does the EED oil pressure pointer turn red?

A

1) Less than 5 psi instantaneously with WOW
2) Less than 5 psi for 10 s continuously with weight-off-wheels
3) Greater than or equal to 56 psi for 6 minutes with WOW
4) Greater than or equal to 56 psi instantaneously with weight-off-wheels

28
Q

Fuel flow needs what kind of electrical power?

A

AC and DC

29
Q

Does fuel flow indicate increased fuel flow during AB?

A

No.

30
Q

The EED can read as high as what fuel flow with a shutdown engine?

A

60 pph

31
Q

The fuel quantity indicators need what to function?

A

Right oil pressure synchro reference from the right AC transformer

32
Q

Turning on pitot heat or exterior lighting may do what to fuel quantity indications?

A

May cause up to 100 lb change in fuel quantity. Changes greater than this are indicative of fuel quantity probe failure

33
Q

When do you get a BIT FAIL on the EED?

A

When the EED detects an internal fail that is not related to indicator display data

34
Q

When you have an EED overtemp what happens?

A

EED HOT is displayed and display brightness is reduced by 50%. Even if the display backlights shut off the EED will still send data to the Slave and MFD

35
Q

When does the EED fuel quantity show a white fuel imbalance?

A

60-190 lbs imbalance

36
Q

When does the EED show a red fuel imbalance?

A

Above 200 lbs

37
Q

What’s in the main fuel control system?

A

Two-stage engine-driven pump, main fuel control, and an overspeed governor.

38
Q

What functions does the main fuel control perform?

A

1

39
Q

If one fuel system has less than ________, the surface of the fuel falls below the fuel boost pump upper inlet and boost pump output is reduced approximately _______%.

A

650 lbs; 40

40
Q

What should you do to ensure max useable fuel from both systems with a FUEL LOW caution light?

A

Maintain a slightly nose up flight attitude

41
Q

What is the caution about taxiing with low fuel?

A

Taxi ops with less than 150 lbs in either fuel system could cause cavitation of the boost pump of that system resulting in engine flameout during turns and low power settings.

42
Q

What’s the note about low fuel state descents?

A

Do not maintain a nosedown attitude for extended periods, transit occasionally to a positive pitch attitude to refill the boost pump sump

T-38 (19 decks)

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