Eng. : PW127E
ATR 42 Model : 500
POWER PLANT
LIMITATIONS
P 1
NOV 01
001
2.01
.
04
ENGINES
ENGINE PARAMETERS
Operating limits with no unscheduled maintenance action required.
Beyond these limits, refer to maintenance manual.
OPERATING
CONDITION
TIME
LIMIT
TQ
(%)
ITT
(
°
C)
NH
(%)
NL
(%)
NP
(%)
OIL PRESS
(PSI)
OIL TEMP
(
°
C)
(2)
RESERVE
TAKE OFF
10 mn
(6)
100
(1)
800
103.2
104.2
101
55 to 65
0 to 125
NORMAL
TAKE OFF
5 mn
90
(1)
(5)
101.9
101.4
101
55 to 65
0 to 125
MAXIMUM
CONTINUOUS
NONE
(6)
100
(1)
800
103.2
104.2
101
55 to 65
0 to 125
GROUND
IDLE
66
mini
40 mini
(4)
- 40 to 125
HOTEL
(7)
MODE
715
55 to 65
125
TRANSIENT
20 s
137.5
840
104.3
106.5
106
(3)
40 to 100
5 s
120
20 mn
140
STARTING
5 s
950
- 54 mini
1) Value linked to 100 % NP.
2) Oil temperature must be maintained above 45
°
C to ensure protection for the
engine air inlet against ice accumulation.
3) Permissible for completion of flight provided TQ does not exceed 85 % during
climb and 84 % during cruise.
4) Up to 75 % NH only.
5) ITT limits depend on outside air temperature. Refer to 2.01.04 p 3.
6) Time beyond 5 mn is linked to actual single engine operations only.
7) A qualified person is required to use engine 2 in HOTEL mode.
Note : Flight with an engine running and the propeller feathered is not permitted.
AA
R
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