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T-38 Systems > Hydraulic System > Flashcards

Hydraulic System Flashcards

1
Q

Why does the T-38C aircraft have two hydraulic reservoirs?

A

To allow for two independent hydraulic systems

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2
Q

Which components are run by the right hydraulic system?

A

Flight controls

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3
Q

Which components are run by the left hydraulic system?

A
  • Flight controls
  • Speed brake
  • Flaps
  • Nosewheel steering
  • Stability augmenter system
  • Landing gear extension and retraction
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4
Q

What are the minimum, normal range, and maximum hydraulic system pressure limitations?

A

Min - 1500 psi
Normal range - 2850-3200 psi
Max - 3200 psi

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5
Q

When will the hydraulic caution light illuminate?

A

When the hydraulic pressure drops below 1,500 ps

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6
Q

Can you maneuver the T-38C with the left engine frozen and the right gearbox failed?

A

No, immediate ejection is recommended

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7
Q

What is indicated by left hydraulic and left generator lights illuminating at the same time?

A

Gearbox failure

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8
Q

True or false: If the gearbox fails to shift, you lose the generator and hydraulic system on that side

A

False

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9
Q

If the left airframe mounted gearbox shaft shears, can the gear be lowered normally?

A

No, the gear must be lowered with the alternate system

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10
Q

Which trim system requires the stab augmenter system to be on?

A

Rudder trim

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11
Q

What are the conditions that activate the landing gear up warning system when the gear is not down and locked?

A
  • Airspeed 210 KCAS or less
  • Both throttles below 96% RPM
  • Altitude 10,000 feet or below
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12
Q

What are the conditions that activate the landing gear down warning system?

A
  • All gear are down and locked

- 230 KCAS or more

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13
Q

What are the limits of rudder deflection with nose gear extended ¾ or less?

A

6°

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14
Q

What are the limits of rudder deflection with nose gear extended more than ¾?

A

30°

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15
Q

How is control of the speed brake transferred from one cockpit to the other?

A
  • The rear cockpit can take control any time the rear switch is actuated
  • The front cockpit switch must be momentarily returned to neutral (OFF) to regain control
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16
Q

If the gear is lowered by the alternate release handle with the landing gear handle in the LG UP position, there will be a red light in the gear handle without the audible tone. What does this indicate?

A

This is a proper indication and indicates the gear doors are open

17
Q

If you have AC electrical failure, will this affect the flight controls? If so, why?

A

Yes. Trim is AC-powered

18
Q

What hydraulic operations are no longer available if the alternate gear extension is used?

A

Nosewheel steering inoperative. (After gear extension, landing gear doors remain open.)

19
Q

The left engine is flamed out and frozen. Can rudder trim be used during the single-engine approach?

A

No (Rudder trim requires stab-aug on, which requires utility hydraulics.)

20
Q

True or false: The T-38 wheel brake system is an Independent, self-contained hydraulic system

A

True

21
Q

Because of utility hydraulic failure, the gear has been lowered by the alternate gear release. What is still available to the pilot?

A

Wheel brakes

22
Q

How are aerodynamic forces transmitted from the flight control surfaces to the pilot?

A

Aerodynamic forces are simulated by artificial feel

23
Q

What is the red light in the gear handle used to indicate?

A

In the up position, the light is a function of the gear doors, and in the down position, the light is a function of the gear position

24
Q

What does the takeoff trim button do?

A

Trims only the horizontal tail, and the takeoff trim light illuminates only when the button is pressed and the horizontal tail is trimmed for takeoff

25
Q

What will happen if one of the flap motors fails?

A

Both flaps should extend because of the interconnecting rotary shaft

26
Q

True or false: If you lost the utility hydraulic system, you will still be able to lower the flaps

A

False

27
Q

How does AC and DC power failure affect flap operations?

A
  • They will be inoperative only with AC power failure

- They will be inoperative only with DC power failure

28
Q

What would happen on an aircraft if the flap-slab interconnect failed while the flaps were full down?

A

The aircraft would have a definite pitchup

T-38 Systems (11 decks)

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