can parking brakes used if the aircraft brake system failed?

Question

second situation...?


if the aircraft lands and the brake system did not work at all......
can parking brakes used if the aircraft brake system failed?
specially to large aircraft....like boeing and airbus???


like in cars...if the brake system lost.....there is a option....
parking brake(handbrake)


can this situation apply to the aircraft.....?

Answer 1

On large aircraft, the brake systems are hydraulic. The 747 has 4 seperate hydraulic systems, the brakes work on 2 of these seperate systems. If you have lost both of these systems you have got much bigger worries than the brakes working. But to answer your question, no they won't work on the parking brake.

Light aircraft have a cable going from the parkbrake straight to the brake pedals so if the brakes aren't working the park brake won't work.

Answer 2

Large airliners also have what is called "Reverse thrust" How it works on the aircraft varies. On the MD 80 and 90 series two bucket looking things pop out from the engine and attenuate the thrust so that it faces forward. on the 737 the cowling hmm I dont know exactly how it works but it looks like the cowling slides apart a little bit which does the same thing which is to change the direction of the thrust. this is used to slow the aircraft down upon landing.

As far as when a plane is parked at the gate they use wheel chocks. and the Parking brake does not have to be set. I think (aka I am not sure) that when the mechanics change a tire when a plane is a the gate the brakes are not set. the plane is being held in place with the chocks

But to answer your question aircraft braking systems are vastly different than braking systems on a car. its hard to draw many parralels.

I suppose if you had a monstously long runway you might be able to run an aircraft out especially if it was a smaller aircraft and had a slower landing speed. but without brakes you are in a world of hurt.

Answer 3

In case of emergency where brakes and/or reverse thrust have failed - applying the parking brake is an option on some heavy aircraft. Obviously this would be used as an absolute last resort, given the high probablity of structural damage to the aircraft.

Answer 4

i dont think it is possible because using the parking brake when landing causes damage to the aircraft. Using just reverse thrust and speedbrakes/spoilers (the flaps on top of the wing that deflect airflow) i have trieed on my flight simulator and the only place i could stop safely was the 15,000 foot Shuttle Landing Facility, at Kennedy Space Centre in Flordia. but then again, it is a simulation game, it might not happen in real life. and yes the parking brake is set at the gate all the time no matter if they use wheel chocks or not

Answer 5

Commercial planes all use hydraulics to operate the brakes. A Parking brake on a commercial airliner only blocks the return line of the hydraulic brakes therefore not allowing them to release. If you have no pressure in the line to set the brake in the first place the parking brake is worthless.

Answer 6

I don't have a general knowledge of all airplanes but I would say NO. My experience on a Cessna 172 is the brakes are broken the parking brake is not going to work.

Answer 7

i do no longer use my parking brake for the parking that I do. that's distinctly flat and that i force an computerized. If I park on a hill then i'm going to apply it as a precaution. i do no longer think of it has something to do with the engine. that's undesirable in case you force with the parking brake on. on occasion my husband will placed it in place and that i will have a no longer ordinary time getting it to launch using chilly. so as that's a huge rationalization why i do no longer use it whilst i do no longer possibly prefer to.

Answer 8

well according to the pilots iof airliners, ussually using parking breaks are designated to be used upon full stop in the gate since you're asking about brake failure, hmmm, i think all you need to do is use the Autobrake if it still fails, ha! good luck either you'll be in Hell or Heaven hhhehe

Answer 9

they use tire chalks they do not have hand brakes that is they flight controller .