Hydraulics Flashcards
A SYSTEM (L) • Reservoir 1.7 gallon B System (R) • Reservoir 1.7 gallon Engine pylons Reservoir pressurized at 50psi
A System (L) • Reservoir 1.7 gallon B System (R) • Reservoir 1.7 gallon Engine pylons Reservoir pressurized at 50psi
Skydrol LD IV
Skydrol LD IV
Engine Driven Pumps
- 3000 psi
- 15.5 gpm
- Unload – DC power to open valve (fail close)
Engine Driven Pumps
• 3000 psi
• 15.5 gpm
• Unload – DC power to open valve (fail close)
Accumulator
- One per system
- Dissipate shock and reduce noise
- 1500 psi nitrogen pre-charge
Accumulator
• One per system
• Dissipate shock and reduce noise
• 1500 psi nitrogen pre-charge
PTU
- B System to power A System (A pumps fails)
- DC power to hold PTU valve open, fail closed
- Pull PTU CB - PTU valve close
- A system pressure vary between 1700 to 2700 psi
PTU
• B System to power A System (A pumps fails)
• DC power to hold PTU valve open, fail closed
• Pull PTU CB - PTU valve close
• A system pressure vary between 1700 to 2700 psi
A Aux Pump
- EMER Bus
- 1 gpm
- 3000 psi
- No auto feature
- Primary used for setting parking brake on ground
- Gear should be extended using backup pneumatic system (Aux pump output capacity limitations)
A Aux Pump
• EMER Bus
• 1 gpm
• 3000 psi
• No auto feature
• Primary used for setting parking brake on ground
• Gear should be extended using backup pneumatic system (Aux pump output capacity limitations)
Nose wheel steering accumulator
• 3000 psi during flight
Nose wheel steering accumulator
• 3000 psi during flight
Rudder Standby System (RSS)
• Trapper B System fluid
• Lower rudder
• Electric pump and accumulator
Rudder Standby System (RSS)
• Trapper B System fluid
• Lower rudder
• Electric pump and accumulator
Amber CAS • volume < 16% • pressure < 2350 psi • (2600 to 2800 psi?) • temp 92 to 129 degC
Amber CAS • volume < 16% • pressure < 2350 psi • (2600 to 2800 psi?) • temp 92 to 129 degC
Limitations
Limitations
