Praetor Hydraulic System Flashcards
How many hydraulic systems are there?
Three
What nominal pressure do all three hydraulic systems operate at?
3000 psi
What MFD page provides a visual representation of the hydraulic system operation and parameters?
the hydraulic synoptic page
What pressure is the amber tick mark placed at on the pressure indication for all three systems on the hydraulic synoptic page?
1800 psi
What color is the symbol for shutoff valves that are open, engine driven pumps that are on and hydraulic flow lines that are pressurized?
Green
Will a failure of two hydraulic systems result in a complete loss of flight-critical functions?
No due to system design
What is hydraulic system 1 comprised of?
One reservoir, one engine driven pump (EDP1), one electrical DC motor pumb (DCMP1), one shutoff valve (SOV 1) and one accumulator
When will the DCMP be automatically commanded on with the HYD 1 ELEC Pump knob in the AUTO position?
During the takeoff and landing phases
What is hydraulic system 2 comprised of?
One reservoir, one engine driven pump (EDP2), one shutoff valve (SOV2) and one accumulator
What is hydraulic system 3 comprised of?
One reservoir, one electrical DC motor pump (DCMP 2) and one accumulator
Hydraulic system 3 is designed to operate in conjunction with what electrical system (s)?
the battery and the ram air turbine
What is the only source of hydraulic power for hydraulic system 3?
The electric DCMP3
What is the source of electrical power for the electric DCMP 3 (hydraulic system 3)
EMER BUS 3
If the airplane loses and 2 of the 3 hydraulic systems due to overheat, will the overheat protection system still be functional on the remaining system?
No, it will be inhibited
What is the backup for hydraulic systems 1 and 2?
The PTU
