Lesson 1
1. LESSON 1 - Principles
of Gas Turbine/Recip-
rocating Operation
Total Pressure = Ps + q
2. EXPLAIN - Bernoulli's
Equation Total Pressure = (Pressure) + (Velocity)
V increases, P decreases
3. DESCRIBE - Behavior
of air in a nozzle
V decreases, P increases
4. DESCRIBE - Behavior
of air in a diffuser
Intake, Compression, Combustion, Exhaust - Simultaneous
5. DESCRIBE - Brayton
Cycle
6. DESCRIBE - Otto Cycle Intake, Compression, Combustion, Exhaust - Sequentially
7. DESCRIBE - A Gas Gen- Composed of a compressor, burner, and turbine
erator
8. DESCRIBE - Airflow
properties throughout
a gas generator
9. DESCRIBE - Engine
Thrust
10. DESCRIBE - The effects Decrease in Temperature, Altitude = Increase in Thrust
of airflow properties
on thrust in a gas tur- Increase in Pressure, Engine RPM, Ram Ettect = Increase in Thrust
bine engine
TAPER
,
,11. EXPLAIN - Ram effect Due to compressibility of air as velocity increases, mass airflow increases
in a gas turbine more than airflow velocity decreases.
Little to no ettect at subsonic. Great Thrust increase at supersonic
12. DESCRIBE - Tachome- Displays engine speed in %RPM where 100% RPM = full power.
ter
Found in all engine types/most used for engine performance
13. DESCRIBE - Torqueme- Displays shaft horsepower available
ter
Found in turboprops and turboshafts
14. DESCRIBE - Engine Displays pressure ratio of inlet vs exhaust.
Pressure Ratio Gauge
Found in turbofans, turbojets/'EPR Gauge'
15. QUESTION - Describe Inversely related. Total Pressure = Pressure + Velocity
the relationship be-
tween pressure and
velocity in a closed sys-
tem
16. QUESTION - How does Convergent - Velocity Increases, Pressure Decreases
subsonic flow react
through convergent Divergent - Velocity Decreases, Pressure Increases
and divergent open-
ings
17. QUESTION - How does Convergent - Velocity Decreases, Pressure Increases
supersonic flow re-
act through conver- Divergent - Velocity Increases, Pressure Decreases
gent and divergent
openings
, 18. QUESTION - How does Accelerating exhaust gases
a gas turbine engine
produce thrust
19. QUESTION - What cy- Brayton Cycle
cle explains the move-
ment of air through a
gas generator
20. QUESTION - What cy- Otto Cycle
cle explains the move-
ment of air through a
reciprocating engine
21. QUESTION - What Compressor - Constant (open system)
happens to the veloc-
ity of gases as they Burner - Increase
pass through the com-
pressor, burner, and
turbine sections
22. QUESTION - What is Thrust under normal flight conditions
Net Thrust
Tnet = m*(Vf-Vi)/t
23. QUESTION - What is Measurement of thrust due solely from the velocity of exhaust gases under
Gross Thrust standard condition
24. QUESTION - When are When static and at standard conditions
Gross Thrust and Net
Thrust Equal
25. Temperature, pressure, and altitude
1. LESSON 1 - Principles
of Gas Turbine/Recip-
rocating Operation
Total Pressure = Ps + q
2. EXPLAIN - Bernoulli's
Equation Total Pressure = (Pressure) + (Velocity)
V increases, P decreases
3. DESCRIBE - Behavior
of air in a nozzle
V decreases, P increases
4. DESCRIBE - Behavior
of air in a diffuser
Intake, Compression, Combustion, Exhaust - Simultaneous
5. DESCRIBE - Brayton
Cycle
6. DESCRIBE - Otto Cycle Intake, Compression, Combustion, Exhaust - Sequentially
7. DESCRIBE - A Gas Gen- Composed of a compressor, burner, and turbine
erator
8. DESCRIBE - Airflow
properties throughout
a gas generator
9. DESCRIBE - Engine
Thrust
10. DESCRIBE - The effects Decrease in Temperature, Altitude = Increase in Thrust
of airflow properties
on thrust in a gas tur- Increase in Pressure, Engine RPM, Ram Ettect = Increase in Thrust
bine engine
TAPER
,
,11. EXPLAIN - Ram effect Due to compressibility of air as velocity increases, mass airflow increases
in a gas turbine more than airflow velocity decreases.
Little to no ettect at subsonic. Great Thrust increase at supersonic
12. DESCRIBE - Tachome- Displays engine speed in %RPM where 100% RPM = full power.
ter
Found in all engine types/most used for engine performance
13. DESCRIBE - Torqueme- Displays shaft horsepower available
ter
Found in turboprops and turboshafts
14. DESCRIBE - Engine Displays pressure ratio of inlet vs exhaust.
Pressure Ratio Gauge
Found in turbofans, turbojets/'EPR Gauge'
15. QUESTION - Describe Inversely related. Total Pressure = Pressure + Velocity
the relationship be-
tween pressure and
velocity in a closed sys-
tem
16. QUESTION - How does Convergent - Velocity Increases, Pressure Decreases
subsonic flow react
through convergent Divergent - Velocity Decreases, Pressure Increases
and divergent open-
ings
17. QUESTION - How does Convergent - Velocity Decreases, Pressure Increases
supersonic flow re-
act through conver- Divergent - Velocity Increases, Pressure Decreases
gent and divergent
openings
, 18. QUESTION - How does Accelerating exhaust gases
a gas turbine engine
produce thrust
19. QUESTION - What cy- Brayton Cycle
cle explains the move-
ment of air through a
gas generator
20. QUESTION - What cy- Otto Cycle
cle explains the move-
ment of air through a
reciprocating engine
21. QUESTION - What Compressor - Constant (open system)
happens to the veloc-
ity of gases as they Burner - Increase
pass through the com-
pressor, burner, and
turbine sections
22. QUESTION - What is Thrust under normal flight conditions
Net Thrust
Tnet = m*(Vf-Vi)/t
23. QUESTION - What is Measurement of thrust due solely from the velocity of exhaust gases under
Gross Thrust standard condition
24. QUESTION - When are When static and at standard conditions
Gross Thrust and Net
Thrust Equal
25. Temperature, pressure, and altitude
