What does "Runway breaking" mean? And what does it mean when an air traffic controller says "Runway breaking is good for all types" when communicating with a pilot (about to give clearance for the plane to land)?
2007-01-29 19:53:42 · 6 answers · asked by Anonymous in Cars & Transportation ➔ Aircraft
Ohh the first spelling I thought of when i heard it was "breaking". I guess the meaning of Runway Braking becomes pretty obvious if you think of the spelling being "braking".
2007-01-29 20:17:12 · update #1
Braking action is an term used by pilots to expressed the useful braking action of their aircraft. Sometimes you will hear the term "Mu readings" which is the coefficient of friction available for aircraft runway braking.
Mu values are obtained from Airport Operations vehicles that use different meters, i.e. the Bowmonk or Tapley, that test the braking action and then express it as a percentage. Braking action is greatly reduced below 40% which is expressed as a Mu 40+. This is a very objective measurement which is based scientifically upon instrument readings. Where as pilot braking action reports given as Good, Fair, Poor, or Nil are discretionary values.
You could have a pilot who was based down in the Caribbean that would call braking action as Poor and an Alaskan bush pilot who would call braking action Good. Hence why Mu values are a much better tool to judge runway braking action.
I hope this answers your question.
2007-01-30 05:57:29 · answer #1 · answered by Aaron K 1 · 1⤊ 1⤋
It is "braking", and indicates that the runway is free of ice or other slippery things that would keep an aircraft from stopping when the brakes are applied to the wheels.
2007-01-29 20:10:50 · answer #2 · answered by Anonymous · 0⤊ 1⤋
Its means just that. The runway is dry enough (of water or snow or ice) to let any ac that can get down on that runway land. Johan
2007-01-29 20:56:01 · answer #3 · answered by Johan from Sweden 6 · 0⤊ 1⤋
It is the ATC letting the pilots know the condition on the runway (ie. is wet, snow, ice, etc...) The ATC will tell them if the runway is fair to good, etc...
2007-01-30 01:19:46 · answer #4 · answered by ? 7 · 1⤊ 1⤋
You were correct at the outset.
It is a phrase unique to California and Japanese tower controllers referencing local earthquake damage to the runway in use.....I think.
2007-01-30 01:25:54 · answer #5 · answered by herkco 3 · 1⤊ 2⤋
Usually, if they give this warning, it is wet, or slippery due to ice snow etc. So the ability to use the brakes is less than optimal.
what you DONT want to hear is breaking is NIL!
2007-01-29 19:59:22 · answer #6 · answered by cherokeeflyer 6 · 1⤊ 1⤋