Hawker 850XP Pro Line 21 Airplane Flight Manual
Page 10
FAA Approved
Original Issue: Feb 28, 2006
Sub-section - 5.05
GENERAL
Maximum Continuous Thrust
Maximum continuous thrust is defined by fan RPM (compensated N
1
), and is scheduled by
altitude and air temperature. APR must be disarmed. Refer to Figures 5.05.3 and 5.05.4.
Maximum Continuous Thrust (MCT) Single Engine
Maximum Continuous Thrust (MCT) is the setting to be used to meet performance stated in this
manual for:
(a)
Final Takeoff Segment (Sub-section 5.25 Net Take-off Flight Path) following an engine
failure on takeoff. The required N
1
values are N
1 REF
-1%, where N
1 REF
is the reference N
1
used during the take-off run.
(b)
En-route configuration (Sub-section 5.40 En-route Data) following an engine failure. The
required N
1
values are the N
1
values presented in Figures 5.05.3 or 5.05.4.
Setting MCT After Engine Failure on Take-off
5 minutes from start of takeoff:
APR ........................................................................... Push ARM to deselect
N
1 REF
-1%................................................................. Set
N
2
and ITT ................................................................. Keep within MCT limitations
At the end of the Final Take-off Segment (normally 1500 ft AGL), accelerate to V
ERC
and:
MAIN AIR VLV (operative engine) ............................. OPEN
En route MCT ............................................................ Set (See following NOTE 2)
N
2
and ITT ................................................................. Keep within MCT limitations
Method of Setting MCT for En-Route Climb Power
To set MCT for use in the enroute climb following an engine failure and with the airspeed at or
higher than V
ERC,
the MAIN AIR
VALVES OPEN, and the APR system disarmed, the following
procedure applies:
SYNC......................................................................... As required (see NOTE 1)
En-route MCT ............................................................ Set (see NOTE 2)
N
2
and ITT ................................................................. Keep within MCT limitations
NOTES:
1. Select SYNC OFF below 22,000 ft or SYNC ON above 22,000 ft to account for
compensation bias of the N
1
engine indicator.
2. Select en-route MCT N
1
value from the charts in Figure 5.05.3 or 5.05.4 and adjust
thrust as required.
3. If flight conditions require MCT to be set quickly, adjust thrust levers until green
CLIMB legends display on the lower center of the N
1
/ ITT scale. This gives a N
1
equal to or greater than the en-route MCT N
1
chart values.
For Training Purposes Only