Hydraulics

Question 1

How many hydraulic systems does the CL-65 have and how many pumps?

Answer 1

3 hydraulic systems.

6 pumps.
2 Engine driven pumps and 4 ACMP powered electric pumps.

Question 2

What pressures does the hydraulic system operate at?

Answer 2

3,000 PSI +/- 200

Question 3

What is the normal range of hydraulic fluid quantity?

Answer 3

45-85%

Question 4

What cool hydraulic systems 1 & 2?

Answer 4

Air heat exchangers in the aft equipment bay. The air is supplied via ram air through the ram air duct. If there is no ram air then there is also a fan that can run to suck the air in needed for cooling.

Question 5

What cools hydraulic system 3?

Answer 5

There is no mechanical means of cooling hydraulic system 3. They lines do pass through the fuel tank and some heat exchanged there.

Question 6

What hydraulic system powers landing gear extension?

Answer 6

3

Hydraulic system 2 powers the main landing gear down lock assist.

Question 7

What hydraulic system or systems powers the brakes?

Answer 7

Hydraulic system 3 powers the end board left and right brakes.

hydraulic system 2 powers the left and right outboard brakes