TPE 331Engine - FAASafety.gov
TPE 331Engine - FAASafety.gov
TPE 331Engine - FAASafety.gov
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A<br />
FAA IA refresher approved<br />
<strong>TPE</strong> <strong>331Engine</strong> 1 Day Training<br />
September 2011<br />
Sample of 12 Training Manual Slides<br />
Constant Speed Operation<br />
Constant Speed Operation continued<br />
In a constant speed (fixed shaft<br />
engine) the propeller pitch or prop<br />
load plus the load from the<br />
compressor section together must<br />
offset by the turbine section power<br />
output.<br />
The balance between turbine<br />
section power output and the<br />
load applied by the compressor<br />
section and the prop pitch must<br />
be equal to result in a fixed<br />
power and speed setting.<br />
1000 HP 2000 HP<br />
COMPRESSOR IMPELLERS AND<br />
PROP PITCH LOADS MUST!<br />
3000 HP<br />
= TURBINE POWER OUTPUT!<br />
<strong>TPE</strong>331 Line Maintenance Course - Section I<br />
35<br />
<strong>TPE</strong>331 Line Maintenance Course - Section I<br />
36<br />
Otter<br />
-12 ENGINE ON (CDAS JOPLIN) TEST CELL<br />
A lebow is used to determine what the real torque is at the<br />
prop via the lebow digital torque readout and what the<br />
torque sensor pressures (raw delta P) are at these various<br />
lebow indicated power levels.<br />
Lebow<br />
<strong>TPE</strong>331 Line Maintenance Course - Section I<br />
49<br />
<strong>TPE</strong>331 Line Maintenance Course - Section I 56<br />
Air flow stations continued<br />
Beta and PG Modes of Operation<br />
T4<br />
T4.1<br />
POWER LEVERS (PL)<br />
PG (FLIGHT)<br />
FUEL<br />
CONDITION LEVERS (CL)<br />
PITCH<br />
PG<br />
Woodward fuel control rigging<br />
mock up used during the 1 week<br />
line maintenance training class.<br />
P5-T5<br />
FI<br />
BETA (GROUND)<br />
PITCH<br />
FUEL<br />
USFG<br />
REV<br />
• The position of the power lever establishes the mode of operation.<br />
P1-T1<br />
P2-T2<br />
P3-T3<br />
• When the power lever is between flight idle and full reverse (red range) it establishes the<br />
BETA (ground) mode of operation.<br />
• When the power lever is between flight idle and max (blue range) it establishes the PROP<br />
GOVERNOR (flight) mode of operation.<br />
<strong>TPE</strong>331 Line Maintenance Course - Section I<br />
20<br />
<strong>TPE</strong>331 Line Maintenance Course - Section I<br />
74<br />
<strong>TPE</strong>331 Line Maintenance Course - Section I<br />
79<br />
FAA IA refresher approved<br />
4
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