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hagavaf
Hi,
In an airliner I know there are two pedals for the rudder but where are the (ground) brakes?
On the Boeing 777 there are two buttons on the handle, what are they for?

Thanks!
Archangel
The brakes are the rudder pedals, at least on small planes you press the top of the pedals for breaking(toe brakes).
bernoulli
QUOTE(hagavaf @ Jun 25 2006, 11:10 AM) *
Hi,
In an airliner I know there are two pedals for the rudder but where are the (ground) brakes?
On the Boeing 777 there are two buttons on the handle, what are they for?

Thanks!


McChord correctly answered the brake question, but what handle with two buttons are you referring to?
futurepilot101
QUOTE(bernoulli @ Jun 25 2006, 09:23 AM) *
McChord correctly answered the brake question, but what handle with two buttons are you referring to?

I think he's talking about the yoke. Not posative though.
hagavaf
Thanks, but how does it work? I mean if they use the pedals won't they control the rudder?


Hmm, for the buttons don't know how to explain it... Here's a picture : [img]http://www.kavmedia.com/777.jpg[/img]

I think they are the alarm control, am I wrong?
AName
QUOTE(hagavaf @ Jun 25 2006, 07:20 PM) *
Thanks, but how does it work? I mean if they use the pedals won't they control the rudder?

If you press on the top of the pedal, it will activate the breaks. It's kind of like a pedal on a pedal. When you push the lower part of the pedal, it controls the rudder/wheel.

QUOTE(hagavaf @ Jun 25 2006, 07:20 PM) *
I think they are the alarm control, am I wrong?

They are to control pitch trim. (I think... that's what they do in a KC-135. They might have multiple functions in a 777)
hagavaf
QUOTE(AName @ Jun 25 2006, 09:31 PM) *
If you press on the top of the pedal, it will activate the breaks. It's kind of like a pedal on a pedal. When you push the lower part of the pedal, it controls the rudder/wheel.


They are to control pitch trim.


So I was totally wrong! icon_lol.gif
Thank you!
What about the brakes?
AName
QUOTE(hagavaf @ Jun 25 2006, 07:37 PM) *
What about the brakes?

What about them?
hagavaf
QUOTE(AName @ Jun 25 2006, 09:40 PM) *
What about them?

I am blind... I didn't see the first part!
Thank you very much! icon_lol.gif
AName
QUOTE(hagavaf @ Jun 25 2006, 07:43 PM) *
I am blind... I didn't see the first part!
Thank you very much! icon_lol.gif

Heh, no problem.
Odyssey2001ACC
QUOTE(AName @ Jun 25 2006, 02:31 PM) *
They are to control pitch trim. (I think... that's what they do in a KC-135. They might have multiple functions in a 777)


On the KC-135 they are the electric trim switches, one half is the clutch and the other half powers the motor.
I would assume it is the same for the 777.
hagavaf
QUOTE(titanmiller @ Jun 25 2006, 11:26 PM) *
On the KC-135 they are the electric trim switches, one half is the clutch and the other half powers the motor.
I would assume it is the same for the 777.

Thanks a lot! icon_biggrin.gif
deltadudejg
The pedals are to steer the front landing gear and the brakes are on the yoke. For some aircraft it is the button that is facing the dispays and some times it is facing YOU! icon_thumright.gif
squidie
QUOTE(hagavaf @ Jun 26 2006, 06:15 PM) *
Thanks a lot! icon_biggrin.gif


In large aircraft there is a half/full or a quarter sized wheel attached to the side of the cockpit wall. This controls the nose wheel while taxiing; the rudders are controlled by the foot pedals. I’m not too sure where4 the wheel brakes are on the 777, the foot pedals only move the nose wheel slightly which is very useful for keeping inline with the runway on takeoff.
hagavaf
So the pedals location differs on each a/c...
Anyone knows for the 777?
learguy
Ok, let's clear this up.

The brakes on all airplanes are on the rudder pedals. The pedals control the rudder. However, the pedal is hinged, allowing the top half of the pedal to be pushed forward by flexing your foot at the ankle, activating the brakes on that side. Press left, left brakes. Press right, right brakes. Press them together, both brakes.

The pedals are located in the same place on all airplanes. Under the instrument panel where you would place your feet in a normally-seated position.

Holding the pedals even with the heels of your feet, flexing your foot forward depresses the top, hinged part of the pedal activating the brake(s) without moving the nosewheel or rudder. If you deflect the rudder pedal fully in one direction or the other for maximum angle on the nosewheel and also push the upper part of the pedal for brakes, you can use the combination to decrease the airplane's turning radius.

On large airplanes, nosewheel steering is done with a tiller rather than the pedals. However most have some limited nosewheel steering through the pedals, too. In any case, the braking is still done with the top of the rudder pedal.

Planes are also equipped with a parking brake. Depending on the plane, this is applied in one of several different ways. The most common way, in my experience, is to pull a lever/handle while holding the brakes down with the balls of your feet. The brakes stay on until the lever/handle is pushed in.

Larger, more sophisticated airplanes are equipped with emergency brakes. These are used when the primary brakes are inop for whatever (rare) reason. On some airplanes the emergency brakes are applied with the top of the pedal just like normal. On other planes, activating the emergency brakes requires operating a separate lever, usually found on the center console.

The larger airplanes are also equipped with automatic brakes. These can be set for different levels of braking and are applied automatically on touchdown, without input from the pilots.
hagavaf
QUOTE(learguy @ Jun 29 2006, 08:07 PM) *
Ok, let's clear this up.

The brakes on all airplanes are on the rudder pedals. The pedals control the rudder. However, the pedal is hinged, allowing the top half of the pedal to be pushed forward by flexing your foot at the ankle, activating the brakes on that side. Press left, left brakes. Press right, right brakes. Press them together, both brakes.

The pedals are located in the same place on all airplanes. Under the instrument panel where you would place your feet in a normally-seated position.

Holding the pedals even with the heels of your feet, flexing your foot forward depresses the top, hinged part of the pedal activating the brake(s) without moving the nosewheel or rudder. If you deflect the rudder pedal fully in one direction or the other for maximum angle on the nosewheel and also push the upper part of the pedal for brakes, you can use the combination to decrease the airplane's turning radius.

On large airplanes, nosewheel steering is done with a tiller rather than the pedals. However most have some limited nosewheel steering through the pedals, too. In any case, the braking is still done with the top of the rudder pedal.

Planes are also equipped with a parking brake. Depending on the plane, this is applied in one of several different ways. The most common way, in my experience, is to pull a lever/handle while holding the brakes down with the balls of your feet. The brakes stay on until the lever/handle is pushed in.

Larger, more sophisticated airplanes are equipped with emergency brakes. These are used when the primary brakes are inop for whatever (rare) reason. On some airplanes the emergency brakes are applied with the top of the pedal just like normal. On other planes, activating the emergency brakes requires operating a separate lever, usually found on the center console.


The larger airplanes are also equipped with automatic brakes. These can be set for different levels of braking and are applied automatically on touchdown, without input from the pilots.


Better than a teacher!
Perfect answer!!! icon_thumright.gif

Thanks a lot!

Just a question, are you giving lessons? (For me personally) icon_lol.gif
Odyssey2001ACC
I just looked in the flight manual for the KC-135 and found out that the rudder pedals provide up to 8º of nose wheel steering either side of center, for additional steering (up to 45º) the tiller (steering wheel) is used.
hagavaf
QUOTE(titanmiller @ Jun 29 2006, 10:36 PM) *
I just looked in the flight manual for the KC-135 and found out that the rudder pedals provide up to 8º of nose wheel steering either side of center, for additional steering (up to 45º) the tiller (steering wheel) is used.

Thanks man.
Does anyone know where I can find/buy a 777 manual?
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