Page 13
Section - 2
LIMITATIONS
FAA Approved
Original Issue: Feb 28, 2006
Hawker 850XP Pro Line 21 Airplane Flight Manual
ENGINE LIMITATIONS
Engine Type
Two Allied Signal TFE731-5BR-1H turbofan engines.
Engine Limitations
* These conditions appear on placards.
NOTES:
1. Initial maximum take-off thrust is selected by the pilot on takeoff. When the
Automatic Performance Reserve (APR) System is operative, maximum take-off
(APR) thrust will be obtained automatically on one engine if the other engine fails
during takeoff.
The five minute limit of maximum APR thrust must include the duration of operation
at initial maximum take-off thrust prior to the operation of APR. Any normal take-
off limitations exceeded during APR operation must be recorded in the technical
log.
2. This is not a normal cruise setting.
CONDITION
% RPM
MAX ITT °C
TIME LIMIT
N
1
N
2
Start or Relight *
----
----
978
996
over 996
Unrestricted
10 Seconds
5 Seconds
Takeoff *
100
100.8
978
1006
1016
5 Minutes
5 Seconds
2 Seconds
Maximum Take-off Thrust *
(APR Operating)
(see NOTE 1)
100
100.8
996
1006
1016
5 Minutes
5 Seconds
2 Seconds
Initial Maximum Take-off
Thrust
(APR Not Operating)
100
100.8
978
1006
1016
5 Minutes
5 Seconds
2 Seconds
Maximum Continuous *
100
100.8
968
Unrestricted
(see NOTE 2)
Maximum Overspeed *
103
103
----
5 Seconds
Maximum ......................................... 127
°
C up to 30,000 ft
Maximum ......................................... 140
°
C above 30,000 ft
Transient Maximum.......................... 149
°
C (2 minutes)
Minimum (Starting) .......................... -40
°
C
Minimum (Takeoff) ........................... 30
°
C
Takeoff and Maximum Continuous
and Climb ........................................ 38 lb/in
2
(262 kPa) to 46 lb/in
2
(317.2 kPa)
Idle................................................... 25 lb/in
2
(172.4 kPa) minimum
Transient Maximum.......................... 55 lb/in
2
(379.2 kPa) (3 minutes)
Temp
Oil
Press
Oil
For Training Purposes Only
