System Limits Flashcards
(32 cards)
1
Q
Nr Limits
A

2
Q
Np Limits
A

3
Q
Engine Torque Limits
A

4
Q
MRGB Torque Limits
A
0-100 Cont
100.1-110.9 Transient (10 sec)
111 Max
5
Q
MGT Temperature
A

6
Q
Ng
A

7
Q
Engine Oil Temp
A

8
Q
Engine Oil Px
A

9
Q
MRGB Oil Temp
A

10
Q
MRGB Oil Px
A

11
Q
CBOX Oil Temp
A

12
Q
CBOX Oil Px
A

13
Q
IGB Oil Temp
A

14
Q
IGB Oil Px
A

15
Q
TRGB Oil Temp
A

16
Q
TRGB Oil Px
A

17
Q
Hydraulics Temp
A

18
Q
Hydraulics Pressure
A

19
Q
Hydraulics Fliud LvL
A

20
Q
Main Generator Voltage Limits
A

21
Q
Main Generator Amps
A

22
Q
Battery Limits
A

23
Q
APU Generator Voltage
A

24
Q
APU Generator Amps
A

25
Ess and Non-ESS DC Bus Limits

26
ESS and Non-ESS AC bus Limits

27
Hot Start
MGT 867ºC
28
Engine Starter Limits

29
About Start Criteria
**HDMI OR 14**
**H**ot Start: MGT reachess 867ºC during start
Starter fails to **D**isengage above 55+- 3% Ng
No **M**GT indication within 30 seconds after the starter engages
No Np within 30 seconds after Ng reaches **I**dle 67+-3%
**O**il pressure is not evident within 30 seconds after starter is engaged. Do not motor engine if aborting due to lack of oil pressure.
**R**otor brake light fails to extinguish within 30 seconds after brake release.
Ng fails to reach **14**% within 6 seconds
30
Rotor Brake Limits
1. Do not apply abouve 60%Nr
2. Do not apply below 25 percent Nr
3. Release rotor brake prior to 0% Nr to avoid sudden stoppage
4. During rotor brake start, release bake within 25 secpmds after engine idle RPM (67+-3%Ng) is attained
5. During Rotor Brake start, ROTOR BRAKE light should extinguish within 30 seconds after brake release.
6. Do not exceed engine Idle RPM with rotor brake engaged.
31
Prohibited Maneuvers
PAPA DDS
1. **P**ractice autorotations to a touchdown
**A**erobatic maneuvers as defined by CNAF
**P**ractice autorotation entries within the shaded regions of the HV diagram
**A**brupt or high magnitude, simultaneous collective and cyclic inputs during flight or on deck
**D**o not exceed 50 percent MRGB torque at airspeeds above Vh while in a dive
**D**ual-Engine throttle chops above 120 KIAS
**S**ingle-Engine throttle chops above 60 percent MRGB Torque
32
Engine Out Warning Light
60%Ng