Powerplant Limitations

Question 1

Engine manufacturer

Answer 1

Pratt and Whitney Canada

Question 2

Engine model number

Answer 2

PT6E-66XT

Question 3

Torque limitations:

Answer 3

103% at Np = 1,925 RPM

Question 4

Torque limitations: what value is acceptable for a maximum of 20 seconds?

Answer 4

103% < TRQ ≤ 118%

Question 5

Ng limitations:

Answer 5

104%

Question 6

Ng limitations: what values are acceptable for a maximum of 20 seconds?

Answer 6

104% ≤ Ng ≤ 104.3%

Question 7

Propeller limitations:

Answer 7

1925 RPM
low end 1905 RPM (-20)
high end 1955 RPM (+30)

Question 8

ITT limitations: Maximum continuous

Answer 8

850 degC

Question 9

ITT limitations: What values are acceptable for a maximum of 20 seconds?

Answer 9

850 degC < ITT ≤ 900 degC

Question 10

ITT limitations: During normal operations, the power settings are defined by the FADEC to maintain ITT below?

Answer 10

840 degC

Question 11

ITT limitations: During Start

Answer 11

850 degC

Question 12

ITT limitations: During start, an acceptable range for a maximum of 20 seconds?

Answer 12

850 degC < ITT ≤ 900 degC

Question 13

Itt limitations: During start, an acceptable range for 5 seconds?

Answer 13

900 degC < ITT ≤ 1,000 degC

Question 14

Maximum oil temperature

Answer 14

104 degC

Question 15

What Maximum transient oil temperature is acceptable for 10 minutes?

Answer 15

110 degC

Question 16

Minimum oil temperature for takeoff?

Answer 16

0 degC

Question 17

Minimum oil pressure?

Answer 17

60 psi

Question 18

Minimum transient oil pressure which is acceptable for 20 seconds?

Answer 18

40 psi

Question 19

Maximum oil pressure?

Answer 19

135 psi

Question 20

Maximum transient oil pressure which is acceptable for 20 seconds?

Answer 20

175 psi

Question 21

During flight, if the oil pressure is between 60 and 100 psi, what reduced power setting is acceptable until a suitable field is found for landing?

Answer 21

45% Torque

Question 22

Oil Capacity: including the oil cooler

Answer 22

12.7 quarts

Question 23

Usable oil Capacity:

Answer 23

6 quarts

Question 24

Fuel limitations: Two tanks

Answer 24

150.5 USG

Question 25

Fuel limitations: Total fuel

Answer 25

301 USG

Question 26

Fuel limitations: Usable fuel

Answer 26

292 USG

Question 27

Fuel limitations: unusable fuel

Answer 27

9 USG

Question 28

Fuel Limitations: Maximum fuel imbalance

Answer 28

15 USG

Question 29

Maximum sideslip duration

Answer 29

30 seconds

Question 30

Propeller manufacturer:

Answer 30

Hartzell

Question 31

Propeller model number:

Answer 31

5D31-NK366B1 / 86DB01B

Question 32

Propeller diameter:

Answer 32

91 inches

Question 33

Propeller blade setting at 30-inch station:

Answer 33

Low pitch: 19.5deg

Feathering: 86.1deg

Maximum reverse -9.3deg

Question 34

What does FADEC mean?

Answer 34

Full Authority Digital Engine Control

Question 35

When a red “NO DISPATCH” message is displayed is the CAS window, what does this mean?

Answer 35

Takeoff is not allowed

Question 36

When a amber “LMTD DISPATCH” message is displayed is the CAS window, what does this mean and what must happen?

Answer 36

Airplane dispatch is allowed, the fault must be repaired within 50 flight hours after the messages first appearance. This is the responsibility of the pilot.