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38: Systems > Hydraulic System > Flashcards

Hydraulic System Flashcards

1
Q

What are the two hydraulic systems in the T38?

A
  1. Flight Control Hydraulic System

2. Utility Hydraulic System

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2
Q

Which hydraulic system is powered by the right engine?

A

Flight Control Hydraulic System

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3
Q

Which hydraulic system is powered by the left engine?

A

The Utility Hydraulic System

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4
Q

What does the utility hydraulic system power?

A
  • Flight Controls
  • Normal Gear Extension/Retraction
  • Speed Brake
  • Nosewheel Steering
  • Stability Augmentor System
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5
Q

What does each hydraulic system consist of?

A
  • A reservoir
  • Pump
  • A pressure indicating and warning system
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6
Q

What pressurizes the hydraulic reservoir?

A

Engine bleed air

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7
Q

How does hydraulic fluid flow from the reservoir to the pump?

A

Due to the fact that the reservoir is mounted in the engine bay section above the hydraulic pump, the fluid gravity feeds from the reservoir into the pump with some aid by the bleed air pressure

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8
Q

What drives the hydraulic pump?

A

The airframe mounted gearbox

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9
Q

Does an airframe mounted gearbox failure to shift affect the hydraulic system?

A

No

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10
Q

What is the purpose of the hydraulic pump having a shift mechanism?

A

It allows for the pump to ensure there is a sufficent volume of hydraulic fluid for its various components at both low and high engine speeds

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11
Q

When does the pressure sensor active and illuminate the MASTER CAUTION and respective hydraulic caution light?

A

At or below 1500 PSI

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12
Q

At what PSI does the MASTER CAUTION and the respective hydraulic pressure caution light extinguish?

A

When the pressure increase to 1800 psi from its low pressure state

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13
Q

Does a hydraulic caution light mean there is low pressure and low pressure only?

A

No, it can indicate either low pressure or an overtemp

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14
Q

What is the difference between the utility hydraulic system’s flight control portion and the flight control hydraulic system?

A

They operate in the exact same way. The main difference is that they have independant actuation systems to prevent a leak in one system affecting the other system.

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15
Q

In th event of a rudder system failure, how quickly will the rudder reach the full 30-degree deflection position?

A

3-5 seconds

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16
Q

What is a general indication of an airframe mounted gearbox failure?

A

Simultaneous illumination of the generator and hydraulic lights for the same engine

38: Systems (13 decks)

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