Re: 747-400 brakes

Date:         03 Nov 97 02:18:54 
From:         k_ish <>
Organization: Netcom
References:   1
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187 wrote:
> <snip> where the pilots rest their feet, they have what they called  the
> brake pedals there.  now, is this the same brakes used to stop the plane
> upon touchdown?

Yes, it is.  The pilot's feet rest on the rudder pedals (function
obvious from the name).  Usually, the co-pilot has a redundant set of
rudder pedals as well.  On the ground, in addition to controlling the
rudder, the pedals also steer the nosewheel.  A challenge to student
pilots is getting out of car mode and learning to "steer" with the feet
instead of turning the control yoke.  (BTW, large transports have a
nosewheel steering knob that is used for sharp turns; the rudder pedals
only provide a small amount of nosewheel steering).

If the top portion of the rudder pedals are pressed, this actuates the
wheel brakes.  The left pedal controls the left brake the right controls
the right brake.  Differential braking can be used to assist in tight
turns; some aircraft have a freely castering nosewheel and the _only_
means of steering is differential braking.

The above comments are not universally true, but do apply to most
aircraft (including the Cessna 150 and the 747-400).

Ken Ishiguro