Where do you think a manufacturer is gonna find turbulence to test fuel performance? The impact is not huge and is account for in fuel reserves as far as I know. As far as altitude and speed they are definitely related:<sigh>
You don't know what you are talking about nottyboi. I suspect you have some knowledge of aviation, and that you might be in the aviation industry in some capacity. But not as a pilot, dispatcher, designer, engineer etc.
Lol!
I guess you are correct in that there is no such thing as "uniform" turbulence.
But turbulence is categorized.
The Federal Aviation Authority's Aeronautical Information Manual sets out the most basic categories in Chapter 7-144
It is further categorized by type, intensity and other characteristics etc.
http://maps.avnwx.com/help/turb_desc.html
http://www.boldmethod.com/blog/lists/2016/03/types-of-turbulence-that-can-rock-your-flight/
When it comes to conditions that can effect range and endurance, you better believe that those conditions are factored and published in the AFM.
Manufacturers must engineer and conduct extensive testing of the aircraft according to specific and measurable turbulence types and intensities.
If these well known factors influenced range, endurance etc to any significant effect, turbulence factors would be specified in the aircraft's range, endurance Performance Charts. The granularity of the performance data regarding even slight changes in weight, temperatures, center of gravity etc on airliners is hard to fathom to a layman or even non-ATR/ATP rated jet pilots.
No it doesn't.
You might change altitude (up or down) to find a smoother flight level, and you might slow down until you find that altitude, but the two have nothing to do with each other.
Wrong again.
You obviously don't even fly on airplanes! LOL
Fucking right you slow down in anything more than light chop. Moderate turbulence is hard on the airplane, paying passengers and the crew who may need to walk around the cabin. The intensity of the effect of turbulence is significantly reduced with lower airspeed.
"Severe Turbulence" by definition: “Aircraft may be momentarily out of control.” Extreme turbulence is defined as “turbulence in which the aircraft is violently tossed about and is practically impossible to control. It may cause structural damage.”
Good article on severe turbulence in this Smithsonian Air and Space magazine article
http://www.airspacemag.com/daily-planet/a-rough-ride-164514997/
https://blogs.scientificamerican.com/guest-blog/flying-in-the-coffin-corner-air-france-flight-447/
stall speeds soar as a heavily loaded plane climbs.
here is one incident where a plane stalled at 39,000 feet:
http://abcnews.go.com/Travel/plan-stalls-mid-flight-faa-slaps-skywest-altitude/story?id=32452209
plane got too slow and plunged 12,000 feet before recovering. Do you think it was gremlins? lmao
If turbulence is severe, yes they will slow down, but they also will have to descend.
Ask a pilot agrees with me:
http://www.askthepilot.com/questionanswers/turbulence/
FYI min speed for a CRJ200 @ FL350 is mach .72