Propeller
Consisting of two concentric tubes, this component routes engine oil to and from the cylinder and piston.
Beta tube
What three sections is the engine divided into?
PGB section, Torquemeter assembly section, and power section.
What are the reservoir quantities of the three different supply hydraulic systems?
Utility 5.5gal, booster 3.1gal, aux 5.3gal.
What valve is responsible for routing hydraulic pressure to retract and extend the NLG and MLG?
Landing gear selector valve.
What flight control surface is constantly supplied with 3,000 PSI of hydraulic pressure? What makes this flight control surface different?
Elevator.
It doesn't have any diverter panels.
What two components control and monitor fuel and fuel components, including fuselage tank fuel and components.
Fuel management controller and tanker equipment control unit.
Installed on the GMAD, what component controls the propeller blade angle by directing engine oil flow to the cylinder and piston
Pitch Control Unit
What are the angled sections in the compressor, which ones are stationary, and which ones spin as air travels through?
Compressor vanes and compressor rotors.
What are the operating pressures of the suction boost pumps and it's thermal cut off temperature?
70-90 PSI, 250 degrees Fahrenheit.
What component used pressurized hydraulic fluid to spin the applicable linkages to rise and lower the MLG?
Hydraulic motor
When is the rudder hydraulic pressure de-boosted?
When flaps are less than 15 percent.
What are the output pressures of the boost pumps, transfer pumps? How are they turned on and off?
15-24 PSI, engine start switches in RUN
28-40 PSI, From switch (arrow) on the fuel management panel.
What components boost engine oil pressure for operation and provide protection in the event of propeller speeds being too high?
High-pressure pump and overspeed governor
Fuel pump metering unit, starter, power unit lube and scavenge pump, and alternator stator.
What does each hydraulic system provide hydraulic pressure to?
Utility - Flight controls, MLG & NLG extension and retraction, NLG steering, normal brakes, flaps, normal AR.
Booster - Flight controls
Aux - Cargo ramp and door, NLG emergency extension, emergency brakes, emergency AR
What are the different ways to lower MLG and NLG?
MLG - Normal via the landing gear panel, hydraulically override via the landing gear selector valve, manually via T-handle and/or stub shaft, and via quick disconnects.
NLG - Normal via the landing gear panel, hydraulically override, hydraulically emergency extension, manual emergency extension handle.
What component bypasses the pressure reducer and sends 3,000 psi of hydraulic fluid to the acutating assembly?
Diverter valve
Outboard - end to end
Inboard - wrap around
Aux - wrap around
External - straight up and out
Which sensors are used to relay the propeller blade angle to the FADEC?
Rotary variable differential transducers (RVDT)
What components are mounted on the gearbox mounted accessory drive?
AC generator, hydraulic pump, PGB lube and scavenge pump, PCU, and propeller overspeed governor and high pressure pump.
What two valves open and close, isolating the hydraulic fluid from going to the hydraulic pump and from the hydraulic pump? What two whys can they be opened and closed?
Suction shutoff valve and pressure shutoff valve.
Engine pump switches or fire handle.
Brake control valves, located under the flight station floorboards just aft of the rudder pedals.
Located in the booster manifold, the position of this valve determines the direction of pressure and return flow to the actuator.
Booster control valve
How much fuel does each vent collector tank hold and how does it drain?
8 U.S. gal, drained by suction effect from the boost pumps when running?
What are the two names of the different characteristics of the propeller operations on the ground and in flight?
Controllable Pitch Propeller and Constant Speed Propeller.
The compressor variable geometry moves and controls what?
Inlet guide vane and the first five rows of the compressor stator vanes.
What line aids in proper cooling and lubrication of the engine hyd pumps?
Case drain line.
What component controls brake pressure and prevents skids? What two configurations is this component not being utilized?
Anti-skid.
The parking brake is set, or when emergency brakes are selected.
What holds the flaps in position and how is it released?
Flap break assembly.
Released by hydraulic pressure.
What are the two types of probes in each tank? How are they constructed? How are they different?
Fuel quantity probe and compensator probe.
Outer tube and inner tube.
Fuel quantity - fuel inside the probes creates capacitance, more fuel, more capacitance, less fuel, less capacitance. Quantity reflects.
Compensator - Instead of capacitance with fuel level, capacitance varies with fuel density.
What component attached to the pitch control unit modulates high pressure oil to the beta tube to change the propeller blade pitch?
Servo valve
What is displayed on the Engine ACAWS page and what are they measuring?
Horsepower(HP), Measured Gas Temperature(MGT) temp in the power turbine section, Gas Generator Speed(NG) speed of the compressor, propeller speed(NP), fuel flow(FF), gearbox oil pressure(GPSI) oil pressure in the GMAD L&SP, engine oil pressure(EPSI) PUAD L&SP, oil temp(TEMP), oil quantity(QTY).
At what PSI is the system pressure relief valve fully open?
3,850 PSI
What valve is actuated by a rod, which is connected to a pivoted rocker arm, that allows pressurized hydraulic fluid to enter and exit the NLG cylinders?
NLG steering control valve.
What actuates/trips in the event of a flap control cable breaks?
Flap cable failure switch
State 540 FPM sink rate criteria.
Gross weight - 142,000 LBS
Fuel in tank NO.1 or NO.4 - 7,320 LBS each
Fuel in all Main tanks - 28,000 LBS