TH-57 Limits Flashcards Preview

TH-57 Emergency Procedures > TH-57 Limits > Flashcards

Flashcards in TH-57 Limits Deck (15)
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1
Q

Nf RPM

A

Power ON
97 -100
Avoid Range
71 - 88

2
Q

Nr RPM

A

Power ON
97 - 100
Power OFF
90 - 107

3
Q

Ng RPM

A

Idle 62 + 2 %
Normal 60 - 105 %
Transient 106 % 15 sec

4
Q

Engine Oil Pressure

A
PSI	    Ng
50 min	0 - 79 %
90 min	79 - 94 %
115 min	94+ %
130 psi max	150 psi Cold weather
5
Q

Turbine Outlet Temperature

Start

A

Temperature Range Time Limit
Up to 810°C No Limit
810°C - 927°C 10 sec max
927°C Max

6
Q

Turbine Outlet Temperature

Transient

A
Temperature Range	Time Limit
Up to 738°C	                 No limit
738°C - 810°C           	5 minutes
810°C - 843°C         	6 seconds
843°C	                        Max
7
Q

Torque

A

Continuous 0 - 85 %
Military 100 % 5 minutes
Transient 100 - 110 % 5 seconds

8
Q

Engine Oil Temp

A

0-107C

9
Q

Trans Oil Temp

A

15-110C

10
Q

Max Gross Weight

A

3200 (internal), 3350 (external)

11
Q

Transmission Oil Pressure

A

Continuous 30-50. (30 Minimum, 70 Max)

12
Q

Starter Limitations

A

EXTERNAL POWER BATTERY
25 seconds - ON 40 seconds - ON
30 seconds - OFF 60 seconds - OFF
25 seconds - ON 40 seconds - ON
30 seconds - OFF 60 seconds - OFF
25 seconds - ON 40 seconds - ON
30 minutes - OFF 30 minutes - OFF

13
Q
Airspeed limitations
Vne
Max rate of climb	
Max IFR speed (Vmini)	
Doors OFF	
Max Auto	
Turb penetration	
IMC CLIMB/DESCENT
A
Vne	130 KIAS FCS OFF,  122 KIAS FCS ON
Max rate of climb	50 KIAS
Max IFR speed (Vmini)	65 KIAS
Doors OFF	110 KIAS
Max Auto	100 KIAS
Turb penetration	80 KIAS
IMC CLIMB/DESCENT	1,000 FPM
14
Q

Sideward/Rearward

A

DENSITY ALT FEET MAX SIDE MAX REAR
0 - 1,000 25 15
1,000 - 2,000 20 15
2,000 - 4,000 15 15
4,000 - 6,000 10 10
6,000 -10,000 5 5

15
Q

Altitude Restritctions

A

Max Gross Weight Pressure Alt Density Alt
3,000 and below 20,000 18,000
FCS
OFF Above 3,000 16,500 13,000

FCS 3,000 and below 11,500 13,500
ON/
IFR Above 3,000 8,500 11,000