Contacts Ground School: Systems #2 Flashcards
What are the major components of the T-6B electrical system?
- Starter/generator
- 24 VDC battery
- 24 VDC auxiliary battery
The generator output provides ____ VDC and is capable of supplying ____ amps.
28 VDC
300 amp
What regulates/monitors the starter/generator?
Generator Control Unit
Where are the FWD AVI and the AFT AVI circuit breakers located in the front cockpit?
On both the battery and generator bus circuit breaker panels
When does the landing light come on?
Only when the landing light switch is ON and the landing gear are down and locked
When using the primary T-6B refueling method, the aircraft fuel system provides approx. ____ lbs of fuel?
1100 lbs
When using the primary refueling method, the maximum amount of fuel for one wing tank is?
530 lbs
The aircraft (T-6B) can hold a maximum of ____ of useable fuel stored between the wing tanks and the collector tank.
1200 lbs
What provides fuel for intial engine start and acts as a backup for the engine driven low-pressure fuel pump?
Electric boost pump
What directs fuel to the collector tank from both wing tanks…keeping the collector tank pressurized?
The two transfer jet pumps
What directs fuel from the collector tank to the engine driven low-pressure fuel pump?
Primary jet pump
When does the fuel quantity tapes on the EICAS turn yellow?
When fuel in that respective wing tank gets below 150 lbs
Display of the FUEL BAL message may indicate an imballance exceeding ____ pounds for more than two minutes between the left and right fuel tanks, or a failure of the autobalance system.
30 lbs
The fuel system incorporates an auto balance system which maintains the fuel load in each wing tank to within ________ pounds of the other wing.
20 lbs
What would detect a fuel imbalance?
The Engine Data Manager (EDM)
If the auto balance system shuts off without reducing fuel imbalance to 30 pounds or less, the auto balance system may be reset to provide an additional ________ to balance the fuel load.
2 minutes
What are the three elements necessary for engine operation?
- Air
- Fuel
- Heat
What are the three sections of the engine?
- Accessory compartment
- Gas generation section
- Power turbine section
Does the friction setting on the front PCL affect the PCL in the rear cockpit?
Yes
Friction control settings made to the front PCL DOES affect the PCL in the rear
What are the two ways that the front PCL are connected to the FMU?
Mechanically connected to the FMU by a flexible cable
Electrically connected to the FMU through the PMU
What functions does the PMU perform?
- Maintains engine and propeller within operating limits
- Determines available power and provides a near linear response between PCL IDLE and MAX positions
- Fine tunes the power request and sends an electronic signal to the FMU
What is the primary power source for the PMU?
Permanent Magnet Alternator (PMA)
The starter/generator ________ until the engine starts and is able to sustain itself.
Turns the compressor
What components does the oil system provide filtered oil to?
- Reduction gears
- Propeller
- Engine bearings
What components control propeller speed to maintain a constant propeller speed of 2000 RPM and achieve varyng levels of thrust by automatically adjusting propeller pitch?
Power Management Unit (PMU)
Propeller Interface Unit (PIU)
What functions does the engine data manager perform?
- Monitors and processes engine operating parameters
- Provides discrete alerts to each IAC when necessary
- Drives the engine instruments displays
What non-engine related functions does the engine data manager perform?
- Fuel balancing and fuel quantity indications
- Determination and display of DC volts and amps
- Determination and display of cockpit pressure altitude and differential pressure
What does the engine fire warning system monitor?
Average and discrete engine exterior temperatures
What components does the fire warning system consist of?
- A core element
- A sensor tube
- A responder assembly
Sensor tubes in the fire warning system are built so that system reliability is not affected by what?
Kinks, twists, or dents
If temperatures reach/exceed the preset fire warning point, what happens?
The MASTER WARN light and FIRE switch lights will illuminate
What is the only environmental control located in the rear cockpit ?
Evaporator blower control switch
What environmental component does not require the use of bleed air?
Air conditioning
What device provides power to the front and rear cockpit blowers which supply airflow through the air conditioning vents?
Evaporator blower
What control switch controls the position of the bi-level control and shutoff valve?
Bleed air inflow
Which control switch operates the motor drive heat exchanger bypass valve?
Temperature control
Moving the TEMP CONTROL switch toward HOT causes the heat exchanger bypass valve to ________ allowing ________ warm air to bypass the heat exchanger?
Open
More
At what bleed air temperature would the yellow DUCT TEMP caution message illuminate?
300°F
A control valve regulator located in the aft pressure bulkhead monitors the ____ and automatically adjusts the positon of the ____ .
Cockpit pressure, control valve
What is the function of the water separator in the anti-G system?
To protect the system against contamination
What is the function of the safety valve in the anti-G system?
To automatically relieve system pressure if it exceeds 7psi
What OBOGS device is located on the left side of the seat bucket?
Emergency oxygen cylinder
What are the major canopy components of the T-6B?
- Canopy frame assembly
- Front windscreen
- Forward transparency
- Rear transparency
The T-6B is equppied with a singe, side-opening, ____operated canopy.
Manually
Which CFS component is installed around the periphery and down the centerline of the front cockpit transparency?
Flexible Linear Shaped Charge (FLSC)
Which CFS component is installed around the periphery and in a diamond shaped pattern along the centerlin of the rear cockpit transparency?
Mild Detonation Cord (MDC)
Where is the ejection seat safety pin installed?
Directly into the ejction handle
How can the ejection seat be adjusted?
Electrically up and down
What are the recommended altitudes for controlled/uncontrolled ejection?
Controlled ejection: 2,000’ AGL
Uncontrolled ejection: 6,000’ AGL
