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
The aircraft performs a safe takeoff, provided the pitch trim setting is within the green band on the pitch trim wheel.
However, the pitch trim setting significantly affects the aircraft behaviour during rotation:
? With a forward CG and the pitch trim set to the nose-down limit the pilots will feel an aircraft “heavy to rotate” and aircraft rotation will be very slow in response to the normal take off stick displacement.
? With an aft CG and the pitch trim set to the nose-up limit the pilots will most probably have to counteract an early autorotation until VR is reached.
NORMAL OPERATIONS
TAKEOFF
In either case the pilot may have to modify his normal control input in order to achieve the desired rotation rate, but should be cautious not to overreact.
CROSSWIND TAKEOFF
It is said in the TAKEOFF ROLL paragraph that care should be taken to avoid using large deflection, resulting in excessive spoiler deployment.
A direct effect of the reduction in lift due to the extension of the spoilers on one wing will be a reduction in tail clearance and an increased risk of tailstrike.
OLEO INFLATION
The correct extension of the main landing gear shock absorber (and thus the nominal increase in tail clearance during the rotation) relies on the correct inflation of the oleos. An under inflated oleo will delay the start of the bogie rotation and reduce tail clearances.
ACTION IN CASE OF TAILSTRIKE
If a tailstrike occurs at takeoff, flight at attitude requiring a pressurized cabin must be avoided and a return to the originating airport should be performed for damage assessment.
MAXIMUM DEMONSTRATED CROSSWIND FOR TAKEOFF
Applicable to: ALL
1 The maximum demonstrated crosswind at takeoff is 40 kt (gust included).
AP ENGAGEMENT
Applicable to: ALL
The AP can be engaged 5 s after takeoff and above 100 ft RA.
VERTICAL PROFILE
Applicable to: ALL
SRS engages when the thrust levers are set to the applicable detent for takeoff and will remain engaged until the acceleration altitude.
The SRS pitch command is the minimum of the following pitches:
? Pitch required to fly V2 +10 in All Engine Operative case (AEO)
? Pitch required to fly IAS at the time of failure (with minimum of V2 and maximum of V2 +15) in One Engine Inoperative case (OEI)
? Pitch required to climb a 0.5 ° minimum climb gradient.
? Maximum pitch attitude of 17.5 ° (22.5 ° in case of windshear)
NORMAL OPERATIONS
TAKEOFF
This explains why, during takeoff, the IAS which is actually flown in most cases is neither V2 +10 (AEO) nor V2 (OEI).
LATERAL PROFILE
Applicable to: ALL
Under most circumstances, the crew can expect to follow the programmed SID. In this case, NAV is armed on selecting the thrust levers to the applicable detent for take-off and engages once above 30 ft RA.
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：
A330/A340 机组训练手册 FCTM Flight Crew Training Manual 1(47)
