Systems 1 Flashcards
What is the make and model of the T-1A?
Modified Beechcraft 400A by Beech Aircraft, Wichita Division
What do the primary flight controls consist of?
Elevator, Rudder, & Spoilers
What do the secondary flight controls consist of?
Flaps, Speed Brake, & Trim Systems
How are the flaps controlled?
Electrically controlled, hydraulically actuated, and mechanically positioned.
What kind of engines does the T-1A have?
Two pylon-mounted Pratt & Whitney JT15D-5B turbofan
How much thrust is each engine capable of producing?
2900 pounds
What temperature does the air-cycle machine maintain in the cabin?
60-90 deg F
What is the service ceiling?
41,000 feet
How many annunciators does the main panel contain?
52 (12 RED, 40 AMBER)
What does pushing the Engine fire switchlight do?
Closes the fuel and hydraulic valves on that engine and arms the fire extinguisher bottles
Where is the aircraft battery located?
Aft fuselage compartment
Where is the standby battery located?
Nose compartment
What does a red warning light mean?
Personal injury or death
What does an amber warning light mean?
Possible damage to equipment
What does a white or green shroud light mean?
System condition advisory
Where is the annunciator chart located?
Section III of the DASH-1
What does the MASTER TEST SWITCH test?
Stall, Fire, Generators, Flap Asymmetry, and Standby Battery
What provides more thrust at high altitude?
Core of the engine (N2)
What provides more thrust at low altitudes?
Bypass flow (N1)
What does the high pressure compressor (N2) provides bleed air to?
Bearing compartments oil seats, hydromechanical fuel control, cooling air for turbine
What connects the fan to the fane turbine?
Shaft inside hollow impeller shaft
What is N2?
high compressor and its single-turbine speed
What is the max transient ITT?
720 deg C for 2 SEC max
How can the oil level be checked?
Electronically with push button or with the dipstick
In what position should the ignition be for T/O, approaches, and landings?
ON
When does the ignition come on automatically?
Engine flameout, engine icing condition, stall condition (switch in STBY)
What airflow is most efficient at low altitudes?
Bypass
What airflow is most efficient at high altitudes?
Core
What speeds can be synced?
Fan or Turbine speeds
What does the EFC (electronic fuel control) do?
refines mixture of fuel and air output of the HMU (hydromechanical metering unit)
What happens if the EFC shuts off?
Loss of thrust, coking (carbon buildup on nozzles)
How is oil returned to the engine?
Two scavenge pumps
How is oil cooled?
Fuel/oil heat exchanger
What should you do if the ENGINE FIRE PUSH switch light goes out?
Test the fire detect circuit
What should you do if the EFC fails?
Must fly with split throttles; avoid rapid throttle movements, don’t turn on unless throttle is below normal T/O position
Which engine is the master if using engine synchronization?
LEFT
When can you not use engine synchronization?
T/O, LDG, patterns
With engine synch on, failure of the left engine will call the right engine to roll back how much?
1.5%
What does pushing the engine fire switch do?
Shuts off fuel and hydraulics to the engine, turns off the generator, and arms the fire bottles
Do the fire extinguishers dispense halon into the engine all at once?
YES
What should be done with the bleed air selector if the engine fails during an ACM OFF takeoff?
Leave bleed air selector in the OFF position until 2200’ AGL or clear of obstructions
What do the pre-check selector valves do?
Ensure proper operation of shutoff during pressure refueling
How many bays are in each wing tank?
3
What is the capacity of the fuel feed chamber?
135 pounds (20 gallons)
How does fuel gravity feed?
From the aft cabin tank into the aft fuselage tank to the mid tanks
What is the fuel temperature limitation?
-40-50 deg C
How long does pressure (primary) refueling take?
15 minutes
How many fuel probes are in the fuselage?
4
What transfers fuel from the midtanks to the wing tanks?
An electric transfer pump
What two conditions must be met for the transfer pump to shut off automatically (AUTO position)?
A float switch in the mid tank sends a signal indicating the tank is almost empty and a pressure switch located in the transfer line sends a signal when the pressure in the lines drops below 5+-0.5 psi
What switch controls the transfer pumps?
FUEL TRANS switch located on the lower portion of the overhead panel
How does the primary jet pump operate?
It provides fuel under pressure from the fuel feel chamber through the fuel feed line; requires motive flow from the engine driven fuel pump; also provides motive flow for the aft transfer pump
What controls the motive flow valves?
JET PUMP switches
What does the forward transfer jet pump receive motive flow from?
the boost pump
What does the aft transfer jet pump receive motive flow from?
the boost pump or primary jet pump
With the boost pump switch in AUTO, when does the boost pump automatically activate?
1-engine start
2-fuel crossfeed is selected
3-volume in the fuel feed chamber drops below 70 pounds (11 gallons)
4-pressure in the fuel feed line drops below 5+-.5 psi
Up to what altitude is the fuel system good?
FL 410
Should you rest a fuel CB?
NO
What is the maximum enroute fuel imbalance?
300 pounds
What is the maximum fuel imbalance for takeoff or touch and go?
100 pounds
What is the condition if the L or R F FLTR BYPASS light comes on?
The fuel filter is clogged
What should you do first if you get the WG TK OV PRESS light during a climb?
Level Off
What annunciator would you see if the pilot valve malfunctions?
WG TK OV PRESS
When does the L or R FUEL FEED annunciator come on?
When the fuel feed chamber has less than 70 pounds (11 gallons)
When is the fuel filter bypass?
When there is 2.3+-0.2 psi differential on the input and output sides of the filter
When does the L or R FUEL PRESS LO red annunciator illuminate?
When the pressure in the fuel feed line (sensor just bf the engine driven fuel pump drops below 5+-0.5 psi
How should you test the boost pump during preflight?
Turn off JET PUMPS
What helps augment the primary jet pump during crossfeed?
the boost pump
When does the fuel level low light come on?
200 pounds/32 gal
How many ports does gravity refueling use?
3
Where is the pressure refueling receptacle located?
behind/below #2 engine (right side of the fuselage)
What closes for the non-selected wing when crossfeed is used?
boost pump & motive flow valve
When does the L or R F XFR PRESS LO light come on?
When the pressure in the transfer line drops below 5+-0.5 psi
What is the maximum observed ITT for takeoff?
700 deg C
What is the maximum observed ITT for starting?
550-600 for 4 SEC
600-700 for 2 SEC
700-720 for 1 SEC
What is the maximum observed ITT at idle?
580 deg C
What is the max observed ITT at max continuous?
680 deg C
What is the max observed ITT for takeoff?
700 deg C
What is N2 for takeoff?
96
What is N2 for max continuous?
96
What is N2 at idle power?
52 (min)
What is N1 for takeoff?
104
What is N1 for max continuous?
104
What is N1 for transient?
106
At N2 speeds above what, is normal oil pressure ______ to ______?
60% N2, 60 to 83
What is minimum oil pressure at idle power?
40 psi
What is transient oil pressure?
95 psi for 90 sec
Oil pressure below what is considered unsafe?
40 psi
ITT should not normally exceed what during normal ground starts?
550 deg C
Under cold starting conditions, oil pressure between ______ and _______ is limited to _______ seconds
83 and 95 for 90 seconds
What is the minimum oil temperature for starting?
-40 deg C
What is the maximum transient oil temperature?
135 psi for 15 min max
What is the oil temperature at idle power?
-40 to 121
