Block III

Question 1

What are accumulators charged with?

Answer 1

Nitrogen

Question 2

How much hydraulic pressure is enough to penetrate the skin?

Answer 2

3,000 psi

Question 3

What are the 5 basic hydraulic components?

Answer 3

1. Reservoir - Holds fluid
2. Pump - Provides flow of fluid
3. Check valve - Directs the flow of fluid
4. Lines - Transmits fluid
5. Actuator - Converts fluid pressure into useful work

Question 4

Each hydraulic pump is capable of delivering how much GPM and psi at takeoff RPM?
cruise RPM?

Answer 4

26 GPM and 3,000 psi at takeoff RPM
23 GPM and 2,850 psi at cruise RPM

Question 5

The utility system provides hydraulic pressure to what systems?

Answer 5

• Air refueling receiver system
• landing gear
• brakes
• leading edge flaps
• trailing edge flaps
• outboard spoilers
• nose gear steering
• thrust reversers

Question 6

The auxiliary power system provides hydraulic system pressure to what systems?

Answer 6

• air refueling receiver system (primary)
• auxiliary power unit start system
• inboard spoiler system
• rudder power control system

Question 7

What are the valves that direct flow of hydraulic fluid under pressure?

Answer 7

1. Brake interconnect valve
2. System interconnect valve
3. Priority valves
4. Check valves

Question 8

Utility system reservoir has a capacity of how many gallons?

Answer 8

14

Question 9

Auxiliary system hydraulic fluid is delivered from what?

Answer 9

(2) 1.25-gallon reservoirs

Question 10

What two functions do the hydraulic accumulators serve?

Answer 10

1. Act as a surge dampener
2. Used to store hydraulic/pneumatic pressure.

Question 11

What 5 accumulators are used on the E-6B?

Answer 11

1. Auxiliary
2. Brake
3. APU start
4. Aerial refueling
5. Thrust reverser

Question 12

Hydraulic fluid contamination for all Naval aircraft is a max of what?
For support equipment?

Answer 12

Navy Class 5 for aircraft
Navy Class 3 for support equipment