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2

The hydraulic pressure of the landing gear is shut off above 260 KIAS. The maximum gear retraction speed as for the placard in the cockpit is 210 and the max extension speed is 250 KIAS if I'm not mistaken. From the FCOM 1.32.10 (download from here for example: http://www.smartcockpit.com/plane/AIRBUS/A320.html) A320 Landing Gear, page 3 OPERATION OF GEAR ...


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When oil heats up, its volume expands (and its density goes down). This means that if you measure the level of oil in a gearbox when it is hot, the level will read high, and if you come back later and measure it after it has cooled back down to ambient, it will read low. So if you were to fill a sealed gearbox with cold oil without taking its thermal ...


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An item may be on the MEL be sure being into for a flight, day ,or other period is an acceptable risk but when giving that approval the authorities always consider the " next worst failure" which most often is the second version of the " failed "item. It was judged that the pilot workload, or reduction on safety margins , when under Erops ( I'm a ...


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The ratio can be different for different phases of flight. It is easy to calculate for the Takeoff (TO) case because the required numbers are easily available: TO Thrust: $ 25 \, 000 \, \text{lbs} $ [1] TO TSFC (thrust specific fuel consumption): $ 0.3316 \, \text{lbs/h} $ per $ 1 \, \text{lbs} $ of thrust [2] Airflow: $ 852 \, \text{lbs/h} $ [1] bypass ...


5

The wheel is removed with the PB depressurized so that the discs are free to float (both rotationally and slightly axially) when the wheel is being slid off, to prevent any potential binding of the disc projections where they engage the slots in the bore of the wheel as the wheel is pulled out. If the discs are locked in place by brake engagement, any off-...


2

It is a very large question and it will be difficult (even with all information) to give a strict answer. Both LEAP-1A (A320neo family) and CFM56-5B (A320ceo family) are turbofan engines which means they have two cores (HP and LP core) and two flows, and where total airflow is created by a Fan. As you said, LEAP-1A has a larger diameter allowing higher by-...


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