IERW P2 CHECKRIDE 150 QUESTIONS
AND EXPERT VERIFIED ANSWERS
2024/2025
What are the Starting limits? - ANSWER- Max TOT starting: 8.5 FLI, 785 TOT
TOT starting Transient: 11 FLI, 5 seconds, 865 TOT
TOT starting range: 6-7 FLI, 650-700 TOT
What are the AEO limits? - ANSWER- AEO Takeoff power range: 8.5 - 10 FLI, 5
minutes, 71 - 88 % TQ, 845 TOT
AEO Max takeoff power: 10 FLI, 5 minutes, 88 % TQ, 845 TOT
AEO Transient: 10.5 FLI, 12 seconds, 97% TQ
What are the OEI limits? - ANSWER- OEI Max continuous power: 11 FLI, 91.5 %
TQ, 845 TOT
,OEI 2.5 min power: 12 FLI, 2.5 minutes, 125 % TQ, 885 TOT
OEI Transient: 14 FLI, 12 seconds, 140 % TQ
what are the Rotor RPM Limitations? (Power ON and Power OFF) - ANSWER-
Min Transient: 85% (20 secs)
Min Continous GM < 2000kg: 96% Pwr ON, 80% pwr OFF
Min Continuous GM > 2000kg: 96% pwr ON, 85% pwr OFF
Max Continuous: 104% pwr ON, 104% pwr OFF
Partial power (max 5 min): 106% pwr ON
Max transient: 106% pwr ON, 110% pwr OFF
Describe the low rotor (NRO) light and audio signals. - ANSWER- NRO < 95%:
steady light with low pitch beeping tone.
NRO = 106 - 110%: Flashing light and warning gong.
NRO > 110%: Flashing light and high pitch steady tone.
what are the Mast Moment Limits? - ANSWER- Normal Operating range is less
than 50%
,Caution Range: Yellow circle: 50 - 64%
Maximum: Red circle: >64%
MM LIMIT caution comes on if > 64% (max 25 seconds total time)
MM EXCEED caution comes on if > 77% (max 7 seconds total time)
Circle scale appears when NR > 70%
What are the weight and Balance requirements? - ANSWER- PC must ensure:
1) the accuracy of computations of DD form 365-4
2) DD form 365-4 is aboard the aircraft.
3) DD form 365-4 CG and weight will remain within limits for the entirety of the
flight.
What are the STARTER energize time limits for Onboard Battery and External
Power? - ANSWER- Onboard Battery
30 s ON
60 s OFF
30 s ON
60 s OFF
30 s ON
, 30 min OFF
External Power
20 s ON
60 s OFF
20 s ON
60 s OFF
20 s ON
30 min OFF
What are the VENTILATION energize time limits for Onboard Battery and
External Power? - ANSWER- Onboard Battery:
20 s ON
60 s OFF
20 s ON
23 min OFF
External Power:
15 s ON
60 s OFF
15 s ON
23 min OFF
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