Important Note: The limitations data contained on these pages is applicable only to the Boeing 757-200 with Rolls Royce RB211 engines, unless otherwise stated. Although the data is from the Aircraft Flight Manual, errors may be found. The data is also subject to regular updates by operating airlines and the manufacturer and must therefore not be associated with the operation of a real aircraft. ALWAYS refer to your current Aircraft Flight Manual for up-to-date information.
| GENERAL
|
Select FLT on Engine Start Switches for operation in moderate or severe turbulence.
When flaps are extended or engine anti-ice is selected, AUTO ignition is provided.
|
| REVERSE THRUST
|
The use of reverse thrust is not permitted in flight.
"Powerback" operations using reverse thrust are permitted on the 757.
|
| WARM UP / COOL DOWN PERIODS
|
| Before takeoff or high thrust usage (e.g. 60% N1 engine anti-icing procedure)
|
5 minutes at low power
(3 minutes for transit stops under 90 minutes)
|
| After Landing
|
1 minute at low power prior to engine shutdown
|
|
| STARTER MOTOR LIMITATIONS
|
For Rolls Royce Engines, the limitations for use of the engine starter motor are:
3 periods of 2 mins operation followed by 15 mins cooling
or
1 period of 4 mins operation followed by 15 mins cooling
|
| ENGINE LIMITATIONS
|
| Maximum EGT
|
RR Engines
|
PW Engines
|
| Take off
|
850oC
|
Unknown
|
| Continuous
|
795oC
|
Unknown
|
| Start / Re-light
|
570oC (momentary)
|
Unknown
|
| Overtemp
|
870oC (20 sec)
|
Unknown
|
| Maximum RPM (RR RB.211-535C)
|
N1 %
|
N2 %
|
N3 %
|
| Take off
|
110.0
|
101.9
|
94.6
|
| Continuous
|
108.5
|
99.3
|
93.0
|
| Overspeed (20 sec)
|
110.0
|
102.9
|
95.6
|
| Reverse Thrust (60 sec)
|
100.0
|
-
|
-
|
| Maximum RPM (RR RB.211-535E4)
|
N1 %
|
N2 %
|
N3 %
|
| Take off
|
108.8
|
100.3
|
99.0
|
| Continuous
|
108.4
|
98.0
|
95.8
|
| Overspeed (20 sec)
|
110.0
|
101.3
|
100.2
|
| Reverse Thrust (40 sec)
|
84.3
|
-
|
-
|
|
| 