LY777
Topic Author
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Turbulence On Short Haul Flights

Tue Jul 11, 2006 10:40 pm

During short haul flights, the cruising altitude is quite low:for instance, for a flight AMS-LHR, it is about 20 000ft.So my question is:are there more frequent turbulences on these flights due to the low altitude?
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DualQual
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Turbulence On Short Haul Flights

Tue Jul 11, 2006 10:48 pm

No. Turbulence is caused by several factors and can occur at any altitude. Sometimes the lower altitudes will have the better ride and sometimes the upper altitudes will have the better ride. It just depends on the day and the conditions.
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quickmover
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Turbulence On Short Haul Flights

Tue Jul 11, 2006 10:49 pm

I've flown DEN-COS several times and can tell you it can get quite bumpy.
 
LY777
Topic Author
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Turbulence On Short Haul Flights

Tue Jul 11, 2006 11:25 pm

Quoting DualQual (Reply 1):
No. Turbulence is caused by several factors and can occur at any altitude. Sometimes the lower altitudes will have the better ride and sometimes the upper altitudes will have the better ride. It just depends on the day and the conditions.

I agree.Nevertheless, there are more clouds at low altitude, and as a consequence, more turbulences
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DualQual
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Turbulence On Short Haul Flights

Wed Jul 12, 2006 12:03 am

Quoting LY777 (Reply 3):
I agree.Nevertheless, there are more clouds at low altitude, and as a consequence, more turbulences

Again not always true. The DEN-COS run that Quickmover talks about will have a lot of turbulence at the low altitude due to mountain wave activity. It can be clear and a million out for that ride but you can still count on getting pounded around quite a bit. Clouds aren't the only factor. The jetstream and shifting winds will bounce you around alot as well. Last week I flew a trip out west where the rides sucked higher due to a lot of high clouds. The rides were better lower (in the 20's) but I couldn't go that low since we were pushing the range on the jet and I wouldn't have landed with legal reserves. Thusly I had to try and outclimb the turbulence which took a bit until I could get light enough to make it into the 40's.
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jetflyer
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Turbulence On Short Haul Flights

Wed Jul 12, 2006 12:05 am

I think so, especially in truboprop airliners flying between 10,000-14,000ft. I fly between manchester (UK) and Bristol a lot and over half of the turbulent flights with loads of bumpiness I have been on are on these routes, even though I've flown on long haul jet flights more altogether. The answer is yes at the end of the day, aircraft, with their ability to fly above most of the weather these days, well what I just said right there was one of the attractive things about the jet age when it first started. So on shorter flights, turbulence will probably take up a larger portion of them than it will on longer flights, due to the altitude limit.
In a shorter flight the aircraft will stay well within the troposphere and encouter a lot more winds and convection through this area closer to the earth. Turbulence of this sort, in this most active layer of the atmosphere, is far more frequent. Up in the stratosphere, which is reached on longer flights, the air is relatively still, although you can encouter the jetstreams where the tropopause occurs, and if you fly around there, you'll encounter clear air turbulence. But most pilots will make a choice to fly below or above this for your comfort. Of course, yeah the turbulence can affect you anywhere. But theratio of turbbulence levels to flight time, will show that it's more likely on shorter flights at lower altitudes. And I speak from experience! On many of my shorter flights if the plane had been able to fly higher believe me we would have avoided several storms and nasty weather. One time on an F-50 we went right through a cumulonimbus cloud that was developing and it was exceptionally bumpy. Wouldn't have happened had it been a jet at about 3-4,000ft higher

[Edited 2006-07-11 17:10:16]
 
rikkus67
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Turbulence On Short Haul Flights

Wed Jul 12, 2006 12:58 am

On a flight from PHX to LAS in 1995, I experienced extreem turbulence and a number of airpockets... I believe FL250 was being used, and we were warned that the ride would be exceptionally rough. There was a large buildup of severe thunderstorms, and the pilots did their best to go around as much of the storm as was possible to get us to LAS. At one poine the wings on the 757 were flexing between 5 to ten feet, and the airpockets sent the FA's flying a couple times. I have been on a twin otter at about FL100, and the turbulence thru a snowstorm was unbelieveable...but the 757 trip takes the cake for me....
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