HKG 25R/07L high speed exits
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HKG 25R/07L high speed exits
Is A/B 3 and idle reverse sufficient to make the first high speed exits off 25R (A6) and off 07R (A7).
Typical landing weights, 220T-240T on the -300ER.
Typical landing weights, 220T-240T on the -300ER.
Here's an idea......try it and find out. If the braking isn't performing to your expectations ( too much or too little ) then go the old fashioned way and PUSH THE BRAKES YOURSELF.
ATC won't get upset if you miss the first high speed exit, just don't take all day getting off.
How hard can it be for goodness sake?
ATC won't get upset if you miss the first high speed exit, just don't take all day getting off.
How hard can it be for goodness sake?
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It depends. First, are you controlling the aircraft with one or two hands? Second, what's the wind? Third, if you touch down at 3000' then I would suggest the values quoted might be insufficient. 
I suppose you could always look in the landing performance section of the FCOM or, if you fly for CX, do a "what if" using the Web Landing Data facility - that might give you a clue.
STP
I suppose you could always look in the landing performance section of the FCOM or, if you fly for CX, do a "what if" using the Web Landing Data facility - that might give you a clue.
STP
You should do a 'Landing performance' ACARS calculation prior to every landing -even at your Home Base - even if nobody flying anything has ever gone off the end. What that kind of guidance generates is a reluctance to follow instructions that are silly. All the runways in HK are long enough for all types of aircraft in all types of weather so why should we do those calculations every time???
Last edited by Arfur Dent; 8th Jun 2014 at 09:16.
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You can actually see the high speed exits? My retina's are normally toooo busy bouncing about in my skull on those nice smooooooth HKG runways for me to see high speed exits...
Arfur-----maybe I misunderstand your sarcasm ......but.....really a landing performance calculation for all landings?
One could safely rest assured that if you can legally dispatch to your destination you don't need to check it out in flight again for a perfectly normal landing. ( with or without Rev )
Waste of time and energy.
Now a non-normal, contaminated runway or alternate Airfield, different matter.
If you read the FAQ section in our e-library it says:---
Arrival Planning
Aircraft serviceability is as per dispatch and arrival weather is as per forecast. No formal calculation should be required as RLD (Dispatch) > ALD (In-flight). The arrival brief should simply remark that the assessment has been carried out.
One could safely rest assured that if you can legally dispatch to your destination you don't need to check it out in flight again for a perfectly normal landing. ( with or without Rev )
Waste of time and energy.
Now a non-normal, contaminated runway or alternate Airfield, different matter.
If you read the FAQ section in our e-library it says:---
Arrival Planning
Aircraft serviceability is as per dispatch and arrival weather is as per forecast. No formal calculation should be required as RLD (Dispatch) > ALD (In-flight). The arrival brief should simply remark that the assessment has been carried out.
Last edited by nitpicker330; 8th Jun 2014 at 07:53.
Nitpickman
'The assessment has been carried out' is what I'm on about. Certain STC people (not me) interpret that as actually doing the calculation with the ACARS and not just saying - 'This has been done 50,000 times before so it's OK.'
'The assessment has been carried out' is what I'm on about. Certain STC people (not me) interpret that as actually doing the calculation with the ACARS and not just saying - 'This has been done 50,000 times before so it's OK.'
Nitpicker
Wasting of time and energy is something that goes on a lot more than it used to. STC's are not the only offenders.
Clarence
I must assume you lost your feet in a childhood accident. If not, try using them if the video game is not performing as you expected
Wasting of time and energy is something that goes on a lot more than it used to. STC's are not the only offenders.
Clarence
I must assume you lost your feet in a childhood accident. If not, try using them if the video game is not performing as you expected
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So to actually answer your question without any smart ass comments a flap 30 landing with auto brake 3 will normally make the first high speed. If you use flap 25 use auto brake 4 to make the first hi speed. As stated earlier Hong Kong does not space all that tightly so to make the 2nd high speed does not upset anyone.
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To answer the question....
In my experience, on 25R, in still air, with flap 30, the first high speed exit will require additional braking if using Autobrake 3. Personally, at that weight, I would take Autobrake 4 and disconnect early.
Regards
csd
In my experience, on 25R, in still air, with flap 30, the first high speed exit will require additional braking if using Autobrake 3. Personally, at that weight, I would take Autobrake 4 and disconnect early.
Regards
csd
Excuse my flippancy...I worked out there was a typo by Clarence. 07R and A7 are not a matching pair but he had it correct in the header.
Basically it would depend on whether your assigned bay is clear and where it is on the field. Go AB3. Why stress yourself and the a/c when you probably will be held up at the bay anyway.
Basically it would depend on whether your assigned bay is clear and where it is on the field. Go AB3. Why stress yourself and the a/c when you probably will be held up at the bay anyway.
I heard the tower controller getting stuck into the aircraft that landed ahead of me one day, for not getting off at the expected exit. Said controller explained that aircraft doing 60 kts were expected to turn off.
He may have been having a bad day or was concerned about having to order a go around.
He may have been having a bad day or was concerned about having to order a go around.
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Not to worry if you don't make the high speed, just pull a 180 on the runway and use the 3 point turn technique to get back (as was so aptly demonstrated recently by one of CX's illustrious pilots).