曝光台 注意防骗
网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者
- ice from inlet : 2 x (1”x4”x6”) slabs
• with less than 25% thrust loss
- medium birds : 3 x 1.5 lb. +1 x 2.5 lb.
(core) in volley within 1 second and operate for a 20
minutes period
- mixed sand and gravel : 1 ounce for each 100 in. of inlet
area
• with no hazard to the aircraft
- large bird : 1 x 6 lb. at most critical fan blade location.
Ennggiinnee Ceerrttiiffiiccaattiioonn
Ingestion tests
66
Flight Operations Support
10 September 2005
CFM PROPRIETARY INFORMATION
Subject to restrictions on the cover or first pa ge
Demonstrate, by
engine test, the
ability to operate
for 5 minutes at
42°C / 75°F above
declared limit (N1,
N2 at red line) with
post-test inspection
showing engines
parts within
serviceable limits.
Overtemperature test
Ennggiinnee Ceerrttiiffiiccaattiioonn
Max pointer indications:
EGT above 915°C (or 950°C at take off power) and below 990°C :
- THR LEVER (of affected engine) ……………….. .BELOW LIMIT
Normal operation may be resumed and maintained until next landing.
Report in maintenance logbook.
Max pointer indications:
EGT above 990°C :
- THR LEVER (of affected engine) ……………………………IDLE
- ENG MASTER (of affected engine) …………………………OFF
If conditions do not permit engine shut-down land as soon as possible using the
minimum thrust required to sustain safe flight.
ENG 1(2) SHUT DOWN
Apply after ENG SHUT DOWN procedure.
A319/320/321
FLIGHT CREW OPERATING MANUAL
ABNORMAL AND EMERGENCY
POWER PLANT
3.02.70 P 13
SEQ… REV…
ENG 1(2) EGT OVERLIMIT
67
Flight Operations Support
10 September 2005
CFM PROPRIETARY INFORMATION
Subject to restrictions on the cover or first pa ge
Flight Ops Support
TTeecchhnniiccaall FFeeaattuurreess
Normal Operating Considerations
Flight phases, ops recommendations
Reedduucceedd TTaakkeeOffff TThhrruusstt
CFFM5566 Geenneerraall
EnnggiinneeCeerrttiiffiiccaattiioonn & TTeessttiinngg
Operational Characteristcs
EGTMargin, OATL
68
Flight Operations Support
10 September 2005
CFM PROPRIETARY INFORMATION
Subject to restrictions on the cover or first pa ge
Pooweerr Maannaaggeemeenntt
The Power Management computes the N1 necessary for a desired thrust.
The FADEC manages power, according two thrust modes:
• Manual mode
• Autothrust mode
Stat.P
OAT
Mach
ECU
ADIRU 1,2
N1 command
ID plug
Engine model
Engine type
Engine conf.
N1 trim
Pmux
TLA
EIU
Autothrust
Engine Bleed Conf.
69
Flight Operations Support
10 September 2005
CFM PROPRIETARY INFORMATION
Subject to restrictions on the cover or first pa ge
• At engine idle speed, the bleed pressure must be at, or above the aircraft
demand.
( Including flame out protection in bad weather )
• At engine idle speed, the N2 must satisfy:
-Mini engine permissible core speed (N2=58.8%)
-Mini accessories speed
-Mini speed for IDG oil T°control
• Engine idle speed must comply with Modulated Idle
-In flight, Flaps < 20°and Landing Gear retracted
-On the ground to minimize the time to accelerate to maxi reverse
• Engine idle speed must comply with Approach Idle
-Approach idle is the mini engine power possible when the mini Modulated
Idle is not active.
-The approach idle enables the engine to achieve the GO AROUND THRUST
within 8s.
Idle Control
Pooweerr Maannaaggeemeenntt
70
Flight Operations Support
10 September 2005
CFM PROPRIETARY INFORMATION
Subject to restrictions on the cover or first pa ge
The 8 baseline thrust ratings are calculated
by the FADEC:
- MTO/GA Maxi Take off / Go Around
- DRT Derate Take off
- FLEX Flexible Take off
- MCT Maxi Continuous
- MCL Maxi Climb
- DCL Derated Climb
- IDLE Idle Level
- MREV Maxi Reverse
Each rating sets a fan speed N1, and each
baseline rating is associated with a throttle
flat. Thrust levels between these baseline
ratings are set by interpolation depending on
TLA.
Pooweerr Maannaaggeemeenntt
71
Flight Operations Support
10 September 2005
CFM PROPRIETARY INFORMATION
Subject to restrictions on the cover or first pa ge
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CFFM556 Flight Operations Support(9)
