Limitations Flashcards
Oil temp
Max inflight/Time
85-100 C 5 min
Oil temp
Normal range
60-85 C
Oil temp
Min for takeoff
40 C and increasing
Oil temp
Min for start and warm up
-40 C
Engine oil pressure
Max start/warmup
100 psi
Engine oil pressure
Normal range/ flux
50-60 psi +/- 10
Engine oil pressure
Min LSGI
> 50 if norm at 100%
Gearbox oil pressure
Max start/warm up
> 250 psi
Gearbox oil pressure
Normal range/flux
150-250 psi
+/- 20
Gearbox oil pressure
Min LSGI
50 psi
Gearbox oil pressure
Min for mission continuation
130 psi
Props
Prop brake disengage
23% or starter engage
Props
Cyclical variation
+/- .5
1% total
Props
Feather blade angle
92.5 deg
Props
Pitchlock range
25-55 deg
Props
Pitchlock rpm
103%
Props
Maintain rpm in Pitchlock
96-98%
Props
To unlock Pitchlock
Incr angle a couple deg
Props
Low pitch stop blade angle
23 deg
Props
Low pitch stop test
> 200 lb increase
Props
Prop oil quantity
26 quarts
Props
Prop oil sump capacity
6.5 quarts pressurized side
Props
Prop low oil light
2 quarts low on pressurized side
Props
Torque to decouple
-6000 inlbs
Props
Prop aux pump limit
1 min on 1 min off not to exceed 2 min in 30 min period
Props
Static feather check time
25 sec
Props
NTS operates at
-1260 +/- 600 inlbs
Props
Blade angle reverse
-6 to -8 deg
Throttle position
Reverse
0 to 18 deg
Throttle position
LSGI
9 to 30 deg
Throttle position
Ground idle/beta range
18 deg
0 to 34
Throttle position
Flight idle/ alpha range
34 deg 34 to 90 deg
Throttle position
Crossover for TD
65 deg
Bleed air sys
Diffuser temp/press
600 F/ 125 psi
Bleed air sys
Eng min output press OVRD
70 psi
Bleed air sys
Ground check time eng
65-35 psi >16 sec
Bleed air sys
APU min output press
35 psi
Bleed air sys
Ground check time APU
30-15 psi >16 sec
Bleed air sys
Regulated output
45 psi
Bleed air sys
Regulators must be w/in
3 psi
Pressurization
Gauge range
-1.2 to 15.8 inhg
Pressurization
Safety valve opens at
-.76 / 15.9 inhg
Pressurization
Controller nominal pressure
15.16 inhg
Pressurization
Windshield cracked half pane
10 inhg
Pressurization
Cargo cracked 1 pane
10 inhg
Pressurization
Cargo cracked 2 panes
0 inhg