Questions about usage of mechanical brakes on the wheels for slowing down.
Questions tagged [braking]
103 questions
8
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2 answers
What powers the air required for pneumatic brakes in aircraft?
What powers the air required for pneumatic brakes in large airliner aircraft? Is it bled from the engines, or do they have a separate motor and pump?
securitydude5
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What is the effect of sudden extreme temperature change on brake disks of large aircraft?
What is the temperature of brake disks at maximum altitude of a jumbo like a 747 and airbus A380 for say a 10 hour flight. Does the temperature drop below zero and what is the effect on the metal material used on the disk from the sudden change in…
securitydude5
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3 answers
Do parking brakes lock the wheels and airframe together?
(YouTube) Wildcat undercarriage.
For planes with non-truck undercarriages, can they be rotated around the lateral axis of the main landing gear with the brakes applied without causing translation?
My answer is no, they must be locked and there must…
user14897
3
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1 answer
What is typical thrust to braking force ratio for a passenger airliner?
Is the ratio fairly constant across aircraft types, sizes and powerplants?
I'd like to ignore the reverse thrust component, since that's not available at the same time as forward thrust.
Daniele Procida
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what are the ways to avoid skidding off the runway apart from thrust reversers?
what are the different ways to avoid skidding off the runway apart from thrust reversers?
Do crew have any option if thrust reversers are not available and the ground is too slippery which is making the vessel skids off the runways sideways?
NitinG
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Do any aircraft have liquid-cooled brakes?
Aircraft wheelbrakes, especially those on heavy aircraft, get really, really hot during landings and rejected takeoffs, and cool down very, very slowly without active cooling. This imposes limits on how short turnaround times can be between…
Vikki
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What brakes are used between line-up and takeoff?
I was wondering if an airliner was instructed to line-up on the runway ("line-up and wait"), will the park brake be used or will manual braking be used (pedals) during the wait until the take-off clearance is given? Same for holding short the runway…
Stefan
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Do landing planes brake with wheel-brakes or air-brakes or both?
I suppose they do both, but what percentage of the kinetic energy is absorbed by the wheel brakes and what percentage by air-friction (in typical cases)?
yippy_yay
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