Engine

Question 1

Engine Model

Answer 1

TPE331 12JR

Question 2

Engine Power

Answer 2

900 SHP flat rated

Question 3

Torque Limits

Answer 3

100% / 104% Transient (5 min)

Question 4

SRL EGT Limits

Answer 4

Startup - 770c

All other - 650c

Question 5

Alpha RPM Range

Answer 5

96% - 101%

Question 6

Beta RPM Range

Answer 6

68% - 96%

Question 7

Compressor Description and features

Answer 7

2 Stage Centrifugal Compressor
11.4:1 compression
12 lb / sec airflow at sea level
FOD resistance. No need for inertial seperator

Question 8

Combustion Chamber

Answer 8

Annular

Question 9

Turbine description and features

Answer 9

3 stage turbine

Question 10

Actual 100% prop and shaft RPM

Answer 10

Shaft - 41,760 RPM

Prop - 1,591 RPM

Question 11

Engine RPM Limits

Answer 11

18. 0% - 28.0% - While accelerating on startup only
19. 0% - 92.0% - Not to be stablised here also
20. 0% - 101.0% - Normal continuous
21. 0% - 101.5% - 5 minutes
22. 5% - 105.5% - 30 seconds
23. 5% - 106.0% - 5 seconds
24. 0% - NEVER EXCEED

Question 12

Total Oil Capacity

Answer 12

10 quarts

Question 13

When should you use PARA vs PARA SERIES

Answer 13

PARA for EXTERNAL POWER to avoid high current

PARA-SERIES for internal Battery

Question 14

What is the effect of engine inlet anti-ice on takeoff torque limits?

Answer 14

Where altitude/temp does not permit 100% torque decrease torque setting by 2%

Question 15

What is the effect of cabin heater on takeoff torque limit?

Answer 15

Where altitude/temp does not permit 100% torque decrease torque setting by 3%

Question 16

What is the effect of OAT and altitude on torque settings?

Answer 16

Higher OAT and/or higher altitude means you will hit the temp limit first at which point torque setting reduces below 100%, the hotter or the higher - the lower torque setting