T-6 DASH ONE Flashcards
(156 cards)
What is the T-6 Gross Weight?
4.900 pounds
What is the T6 maximum take off gross weight?
6.500 pounds
May solo flights be conducted from the back seat?
No – only from the front seat.
How much Horse Power is the T-6 engine rated to produce?
1.100 HP
What is the oil capacity of the oil system?
18,5 quarts
The oil level must be serviced within ____ minutes of engine shutdown?
30 minutes
What is the EDM? What does EDM abbreviate?
Engine Data Manager.
What does SCU abbreviate? And what does the SCU do?
Signal Conditioning Unit.
Contains the logic to illuminate the warning annunciators on the Central Warning System (CWS).
What is wrong if the amber OIL PX annunciator illuminates a single momentary time during maneuvering?
Nothing is wrong – it illuminates due to the sensitivity of the SCU (Signal Conditioning Unit).
What is wrong if the oil pressure indicator indicates normal oil pressure while both the amber and red OIL PX annunciators are lit?
Failure of the Signal Conditioning Unit (SCU)
How is engine power output measured?
By the torque produced by the Reduction Gearbox (RGB).
What does the RGB (Reduction Gearbox) do – and where is it mounted?
The RGB reduce power turbine output of 30.000 RPM to the propeller operating at 2.000 RPM. It is mounted on the front of the engine and driven by hot gasses from the power turbine. No mechanical connection ties the RGB to the turbine.
What does PMU abbreviate? And what does the PMU do?
Power management unit.
Automatically controls the propeller blade angle (Pitch) and propeller speed (Np)
To which altitude is 100% torque available on a standard day?
Up to app. 12.000’ – 16.000’
What is the constant speed of the propeller in RPM?
2.000 RPM
How is the propeller maintained at a constant speed?
The PMU (Power Management Unit) controls the propellor RPM by varying the propellor blade angle (Pitch) through the PIU (Propellor Interface Unit).
How is propeller speed maintained at 2.000 RPM when the PMU malfunctions?
The mechanical flyweight over speed governor modulates oil pressure to maintain Np at or below 100 plus/minus 2% RPM.
Which are the methods to feather the propeller?
With PMU in NORM shutting down the engine with the PCL will give a signal til the prop servo valve to drain the propeller oil pressure. If PMU is OFF – no signal is send.
Placing the PCL to cut-off also activates micro switches that power the feather dump solenoid valve which also dumps oil pressure from the propeller.
If PROP SYS C/B is pulled the solenoids will not be powered.
What is wrong if dashes are displayed for the RPM and torque values?
By cycling the PMU switch you can reset the system if the fault occurred due to a propeller rate limit exceedance. But if the fault is caused by a faulty sensor resetting the system does nothing.
So by recycling the PMU switch you can find out, what is wrong.
How many positions does the starter switch have?
How does the starter switch work?
AUTO/RESET, NORM and MANUAL.
Spring-loaded to NORM.
Lift over detent to MANUAL.
Selecting MANUAL will engage the starter until moved out of MANUAL.
Momentarily placing the switch in AUTO will engage the starter and energize the ignition system.
What to do if the IGN SEL annunciator remains continuously illuminated?
Inform maintenance after the mission.
Which buttons and switches are located on the PCL’s (Power Control Lever)?
Rudder trim
Speed Brake
UHF/VHF comms
ICS (Intercommunications system)
If during ground operations the PCL is inadvertently moved to cutoff – do not attempt to move the PCL back to idle in an attempt to relight the engine?
TRUE / FALSE ??
TRUE
If done – severe damage to the engine could occur.
What does the EDM (Engine Data Manager) monitor?
Engine parameters – and illuminates annunciators as necessary. Also monitors: Fuel balancing Fuel quantity indications, DC volts and AMPs, HYD pressure, Cockpit pressure altitude, Cockpit differential pressure.