limit redo Flashcards
N1 Limits
Min: 51%
Cautionary Auto only: 51-60%
Continuous: 60-100.1%
Take off (5min): 100.1-103.2%
Max T/O: 103.2%
Transient (30 sec): 103.8%
note: transient not to be used intentionally
note: idle may drop below 60% when systems are turned on
N2 limits
Min: 95%
Cautionary: 95-101%
Continuous: 101-103%
Max: 103%
Transient (10 sec): 108%
Caut: when we see 103% it is anything between 102.5 and 103.49 thus we may be in the transient range without knowing
ITT limits for normal ops
max cont: 755 C
take off (5 min): 755-810 C
Max T/O: 810 C
Transient (5 sec): 860
ITT limits for starting
Max: 870 C
Transient (2 sec between 980 and 1090): 1090 C
note linear variation applies above 870 10 sec, and 980 C 2 sec
Torque limits
max cont: 100%
take off (5 min): 100-108.5%
Max T/O: 108.5%
Transient (6 sec): 115%
Nr limit (power on)
Min: 95%
Cautionary: 95-101%
Continuous: 101-103%
Max: 103%
Transient (10 sec): 108%
Nr limit (power off)
Transient (10 sec): 80%
Min: 90%
Continuous: 90-110%
Max: 110%
Fuel px limits
cautionary: 0-7 psi
continuous: 7-25 psi
max: 25 psi
min fuel on landing
shall be no less than 50 lb in the #1 cell
Eng Oil Px
min: 40 psi
cautionary (N1<72%): 40-80 psi
Continuous: 80-110 psi
max: 110 psi
Eng Oil Temp
min Oat for starting: -25
continuous: 10-115 C
Max: 115 C
Transient (5 min with N1 at 61+/-1): 127 C
XMSN oil px
min 30 psi
continuous 30-55 psi
cautionary 55-70 psi
max 70 psi
xmsn oil temp
min OAT for start -25
continuous 0-115 C
Max 115 C
Eng Starter limit (BATT)
- 40 sec on 60 sec off
- 40 sec on 60 sec off
- 40 sec on 30 min off
Eng Starter Limit (ext pwr)
- 25 sec on 60 sec off
- 25 sec on 60 sec off
- 25 sec on 30 min off
Gen Amp limits
continuous: 0-200 A
Max 200 A
transient (5 sec) 300A
Aux Gen Amp limits
Continuous 0-150 A
Max 150 A
Trans (5 sec) 150 A
Hyd px
min 1200 psi
cautionary 1200-1400 psi
continuous 1400-1600 psi
max 1600 psi
Vne IFR
145 kias or Vne pow on lim
Vmini (min IFR)
60 kias
V min app
60 kias
v max app
130 kias
min airspeed for auto (without close ext ref)
60 kias
max airspeed with torque between 100-108.5
75 kias
Vne with one or both doors removed/open
85 kias
Vne with door opening or closing
70 kias