Systems Flashcards
Engine Manufacture
Austro Engine
Engine Designation
E4-A
Propeller Manufacture
mt-Propeller
Propeller Designation
MTV-6-R/190-69
Prop Diameter
190cm
Prop Pitch Angle (Low)
14.5* +/- 0.2*
Prop Pitch Angle (High)
35* +/- 1.0*
Governor
mt-Propeller P-853-16 Electrical Governor
Approved Engine Oil Types
5W-30, 5W-40, OW-40
Battery Life
30 minutes after Alt. Failure
Backup Battery for ECU
30 minute life for ECU B. Powers artificial horizon and flood light for 1.5hrs
Propeller Speed Reducing Gear
1:1.69
Where does the governor get it’s oil for pitch control?
Gearbox oil
Max Power kW and HP
123.5 kW (165.6 DIN-HP) at 2300 RPM (Sea level ISA)
Max Continuous Power kW and HP
114.0 kW (152.8 DIN-HP) at 2100 RPM (Sea level ISA)
How is fuel supplied to the cylinders?
High pressure directly into the combustion chambers
How many fuel injection nozzles are supplied by the common rail?
One per cylinder
How do you get fuel from the AUX tank to the MAIN tank?
Through the use of the transfer pump or the emergency position on the fuel valve.
Why isn’t the radiator circuit open at all times?
To allow for the engine to warm up quickly
What temperature does the thermostatic valve activate the radiator circuit?
80* C
What is the cabin heat exchanger?
A circuit that provides warm air for the cabin
What type of oil system does the engine have?
Wet sump
Voltage of electrical system
28 Volt DC System
How is power provided to the electrical system?
70 ampere alternator (mounted on the bottom left side of the engine).
How is the alternator driven?
Flat-belt driven
What happens in the event of a main battery failure?
The field of the alternator is energized by two 12V 7.2 Ah sealed-lead-acid batteries (ECU backup batteries)
Main battery specs
24V 13.6 Ah lead-acid battery
What would happen in the event of an alternator failure?
The main batter would supply power to the power to the ECU’s. In the event that the main battery runs out of power, the backup ECU batteries will supply power to ECU B.
What does the Emergency battery supply power to when activated?
Standby Attitude Indicator and the flood light.
How long does the emergency battery last?
1 hour
When does the emergency battery need to be replaced?
Every 2 years or once the seal is broken on the switch.
What is the thermal switch on the Pitot probe?
Keeps the temperature constant on the pitot probe
What does the thermal fuse on the pitot probe do?
It’s a safety mechanism that switches the pitot heat off in the event that it gets too hot.
