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Engine RPM speed?
13, 820 RPM (100%)
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Name of engine, and basic stats?
Allison T-56-A-14, single spool axial flow gas turbine, constant RPM, 14 stage
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Bleed valves in the __ and __ stage of compression are provided to unload the compressor during engine start and acceleration.
5th and 10th
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How much SHP?
4600 per engine
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14th stage bleed air does what?
- WEEBOC
- Wing deice
- Engine anti ice
- Engine starting
- Bomb bay heating
- Oil cooler augmentation
- Closes 5th and 10th stage air
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__% is used for combustion, __% is used for cooling
25/75
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Igniters are located in what cans?
2 and 5
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How many thermocouples measure TIT?
18
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Normal RPM range?
96.3%-99.1%
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Low RPM range?
71.0%-73.8%
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List the stuff on the engine accessory drive section?
- FESSMOS
- Fuel control and coordinator
- Engine fuel pump
- Speed sensitive control
- Speed sensitive valve
- Main oil pump
- Oil filter
- Scavenge pump
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What happens when I pull the E handle?
- Four F's and a bogie
- Fuel at fuel control shutoff
- Feather system actuates
- Feather valve moves to feather
- Fuel tank E shutoff valve closes
- Bleed air shutoff valve closes
- Oil tank shutoff valve closes
- Gen cooling air shutoff valve closes
- EDC dumps and firewall shutoff valve closes
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What does the Ignition relay do?
- Ignition plugs in cans 2 and 5
- Paralleling valve solenoid
- Fuel manifold drain solenoid closes
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During start, 16% switch does what?
- open fuel shutoff valve
- energize ignition relay
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During start, 65% switch does what?
DE energizes the ignition relay (the fuel manifold drain now remains closed via pressure)
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During start, 94% switch does what?
- opens 14th stage bleed air (which closes 5th and 10th stage)
- TD control valve goes from start limiting to temp limiting
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What is on the RGB accessory drive section?
- STOGE
- Starter
- Tach gen
- Oil pump/filter
- Oil scavenge pump
- Gen (2,3,4)
- EDC (2,3)
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Oil tank total capacity?
15.75 gal
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Oil tank useable oil?
8.65 gal
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Oil tank UN useable oil?
1.4 gal
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Oil tank foaming space?
5.7 gal
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Oil system pressure?
50-60 psi
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Power section OIL PRESS light comes on at what PSI? RGB OIL PRESS light?
40 PSI, 130+-5 PSI
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Engine oil temp range for oil/fuel heat exchanger?
60-90 deg C
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