My question is about thrust reversers - I am a light aircraft and glider pilot in the UK and I understand that when the thrust reversers are deployed on modern engines, the flaps cut off the direction of the air in the engine, the cowl opens and the air flow is directed forward.
Now when a commercial aircraft is landing, conventional wisdom dictates the engines should be at idle in the flare or very soon after touchdown. If this is the case, the fan blades will be wind-milling and not generating thrust, so why a need for reversers. The only reason I can think of when they must use them is, where engine power is above idle?
Does this mean that the engines are kept above idle in the flare so benefit of reversal can be achieved when the aircraft lands.
My final question - Why the rain water in the air doesn’t extinguish the combustion of a jet engine? Is it because the engine is too hot?
I have just finished reading a book about flying that I bought on a trip to Taiwan. From the book I know that an aircraft is flying at around 3 degrees when cruising in the air. I also know that the table on the passenger's seat is also designed to be at 3 degrees.
I have a question. Is the aircraft flying upwards at 3 degrees or downwards at 3 degrees? And if it flies upwards at 3 degrees, will it climb to a higher level? Flying from an opposite direction, would it descend at 3 degrees towards the ground?
I've been recently told that the Boeing 777/787 FBW philosophy differs from Airbus only in 1 thing:-
The Boeing 777 will not override pilots input on the column (it will give you sirens, EICAS messages and stick shakers but you are ultimate decision maker)
On the Airbus you have to push the button in order to turn Flight Envelope off and control in the direct mode (Boeing seem to believe that reaction has to be uninterrupted by button switching)
As far as taking flight path, calculating the desired input on the flight controls (decision how smooth pull it horizontally or vertically) or in case of emergencies (i.e. if left flaperon fails, flight controls will work to minimize the asymmetry effect without change in the column input)
Thanks for your wonderful and resourceful website. I am curious as to how you guys remember and repeat all the ATC instructions within a few seconds. I listen to ATC channels sometimes, and it could be a bit tough.
"Qantas 001, information is now Echo, altimeter 1008. Turn left to 270, direct to (some waypoint), decent to FL370, expect a 3 minute left hand pattern at ___, expect BORRY2 arrival for runway 24L".
And if they are mean enough, they sometimes say all of that in one transmission plus radio frequency change.
I have heard some pilots write it down, while some pilots just know it because they fly that route quite a few times. But how often do you see pilots actually writing the stuffs down?
As a First Officer or Captain, it might be a bit embarrassing.
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