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anthony_d

X Plane Real Weather Turbulence

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Afternoon all,I've been doing an "interesting" flight from Faroe Islands to Iceland with real weather switched on.Winds on ground 25 knots with gusts to 35, Typical Atlantic strong / gale force conditions for this time of year. Something the real airline pilots take in their stride up where I live in Scotland.X-Plane turbulence seems to be wing snappingly strong for such winds! Flying a 737 is very hard to keep the wings level. Flying any sort of light aircraft results in movements so violent that you suffer from Over-G failure (if enabled).Now I've done plenty of real flights in those sort of conditions. They're bumpy, but not that bumpy.Does anyone else feel that real weather turbulence conditions can be toned down somewhat? I'm guessing that x-plane simply "takes a guess" at the turbulence setting, rather than any sophisticated calculation of turbulence level from buildings, relief and thermals.Anthony

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Afternoon all,I've been doing an "interesting" flight from Faroe Islands to Iceland with real weather switched on.Winds on ground 25 knots with gusts to 35, Typical Atlantic strong / gale force conditions for this time of year. Something the real airline pilots take in their stride up where I live in Scotland.X-Plane turbulence seems to be wing snappingly strong for such winds! Flying a 737 is very hard to keep the wings level. Flying any sort of light aircraft results in movements so violent that you suffer from Over-G failure (if enabled).Now I've done plenty of real flights in those sort of conditions. They're bumpy, but not that bumpy.Does anyone else feel that real weather turbulence conditions can be toned down somewhat? I'm guessing that x-plane simply "takes a guess" at the turbulence setting, rather than any sophisticated calculation of turbulence level from buildings, relief and thermals.Anthony
X planes wind and turbulence have always been extremely overpowering and too strong compared to real life. I dont know if they will ever tone it down but it has been one of my major gripes with xplane.

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This is something i've noticed too coming from MSFS. X-Plane always seems much more lively in dynamics than MSFS.

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I think this is one thing that most people new to X-Plane grumble about.It is the wind shear settings that cause this, if you change from RW weather to uniform I always put the wind shear speed and direction back to 0 and all is smooth again. I can't believe that this can't be toned down because as you say the aircraft are un-flyable like this. I really like the RW weather but as soon as this starts it is plain impossible to fly like it, surely this is something that LR can address.RegardsSimon

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I've found my experience somewhat to the contrary.Haven't tried it in XP10 yet but I found in XP9 when wind shear was set but turbulence wasn't, I got an effect which wasn't far off the experience I get coming into land on rough blustery day in real life. However I've tried both wind & wind shear set to 0, but turbulence set to medium and I get a wholly unstable state of affairs. Also, with real weather set, is there any way of looking up the Metar info for a reporting station in the weather map? I'm finding the only way to do this is by tuning into a local ATIS station.

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The map will tell you weather in txt if you click on an airport. Clicking on a VOR or a NDB won't show weather.

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Afternoon all,I've been doing an "interesting" flight from Faroe Islands to Iceland with real weather switched on.Winds on ground 25 knots with gusts to 35, Typical Atlantic strong / gale force conditions for this time of year. Something the real airline pilots take in their stride up where I live in Scotland.X-Plane turbulence seems to be wing snappingly strong for such winds! Flying a 737 is very hard to keep the wings level. Flying any sort of light aircraft results in movements so violent that you suffer from Over-G failure (if enabled).Now I've done plenty of real flights in those sort of conditions. They're bumpy, but not that bumpy.Does anyone else feel that real weather turbulence conditions can be toned down somewhat? I'm guessing that x-plane simply "takes a guess" at the turbulence setting, rather than any sophisticated calculation of turbulence level from buildings, relief and thermals.Anthony
You've flown in 25kt winds with 35kt gusts???Whenever I would show up at my local airport to go flying, and the winds were 8kts with 15 kt gusts, I'd be told to go home.

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Havn't really noticed too much in the air, but taking off in a good wind, seems as though the wind literally pushes light aircraft off of the runway alltogether. Oh well, I've just learned to adjust for it.

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You've flown in 25kt winds with 35kt gusts???Whenever I would show up at my local airport to go flying, and the winds were 8kts with 15 kt gusts, I'd be told to go home.
OH, I've flown in em. As long as the "cross-wind" component of the wind to the runway is ok, take-off's and landings are just fine. It just makes for one hell of a bumpy ride, especially over the mountains around here. I certainly don't enjoy it (trying to pick up my headset from across the cabin, bouncing my head off the roof), but sometimes, you just do it. :Hypnotized:8kts gusting to 15 is pretty tame. The max crosswind component of many light GA aricraft is 15-18 kts.

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I've certainly been in a passenger in a Jetstream 41 in that kind of weather. It's rather bumpy, but not wing snappingly so!I was seeing winds at my local airport gusting to 60 knots last month. Many flights were cancelled, but plenty kept operating through the day. Even turboprops. I asked the flight attendant what if was like in the JS41 that day. "Very rough" was the response, and one passenger described the experience as "seriously dodgy".

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indeed. turbulences in real weather are just ridculous. i thought it would have been fixed easily in one of the first betas. now i just hope it gets adressed at all...

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Are you guys comparing the turbulence to RW flying or FSX flying?(just curious)

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Hey Goran,I'm not a real world pilot, so I have no comparison there. I have been flying in MS products for many years and I can make a comparison there, Xplanes turbulence is a lot stonger than anything I have evey encountered in MS products, and I have always only ever flown using real weather through one of HiFi's weather products. I have to admit, there are times when the turbulence is so strong that the plane is uncontrollable, and the wind speeds don't seem to indicate that the turbulence should be that bad. Again, I'm not real world, so in reality things could be different.GlenEdit: If there was someway the user could tone it down through a setting, that would be nice. That option has to be available while using real weather, I don't see the point of not using real weather, unless you want to specifically practice flying in certain contitions.

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I find the way XP9.7 interprets RW weather for higher altitudes can be a trying experience. Couple in XSquawkbox and sometimes it seems as though the winds are summed together to provide (as a recent example) 101kt headwinds at FL220.....67kts at FL140.Not very nice flying a PC12 or similar into that sort of nonsense when the RW weather is 1/2 or more less the displayed value.There also seems to be an implied XP bias in terms of "fly west eat west headwind" and the same going north.Just my impressions anyway. A third party weather solution plug-in that works would be most welcome for XP9 and XPX.

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The turbulence is way over done and for me ruins much of the rw weather downloads. Living in a place where high winds are almost routine there would never be any flying done if the effects matched what xplane does.

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Come on, the problem is that even when there are lots of people complaining, many with real world experience, LR still says it's exactly like in real life, and the problem is that we are all FS pilots. Don't you believe most of these guys get to fly this 30knot wind every now and then? Please fix that in X-Plane, it's so ridiculous, I'd rather have the stable FS atmosphere than X-Plane crazy roller coaster one.

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I compare to both, FSX and real world. both sims overdoes the turbulance, although XP10 does better with turbulence than XP9 did.I've flown C172 real world in winds of over 30 knots. North of Greeley Colo. in 1987 I did encounter turblence quite like the sims portray. It knocked out the rear window in a C172 M.I flew from Grand Prairie Tx, to Waco Tx with a headwind, that made my ground speed about 30 knots. Took almost an hour. Got back very fast though :(.

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I also believe the turbulence in X-Plane feels like it is too strong.There are two facts compounding this problem:A.) A wind of 20G30 isn´t always the same. Sometimes these gusts come fast and hard, sometimes it is more of a gentle up and down. The frequency is important (remember, I am talking about wind, here! :( )I have been in fairly calm winds that were really bumpy, and I have been in some smooth and steady 30kts winds on landing (usually depends also on the terrain around the airport.I think X-Plane just assumes the worst case, which is quite rare in real life (fortunately). I have done a landing in Bilbao, Spain with a 30kt crosswind coming over that mountain ridge (RWY30) and it was X-Plane-like Nail%20Biting.gif .B.) In real life your head will compensate a lot of the pitching, rolling and yawing. Keeping your head level is instinctive behaviour and faster than most turbulence and gusts. This is something that doesn´t happen when you look at your computer screen. Especially with short and rapid gusts the airplane tends to oscillate around the desired pitch, roll and bank, and you can just let it ride to a certain degree with subtle inputs to stay on the desired flightpath. Let her buck a little, if you will...There is also the instinctive input to controls when you "feel" the acceleration of the gust - in any simulator you have to wait until your eyes tell you : "ooops, you are banking!" - then work the stick to counter that.Jan

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I've done a few experiments with some flight models... and the amount of movement the aircraft experiences in x plane when hit with turbulence can be increased or decreased by adjusting some settings (That has nothing to do with the weather) in the flight model. I tried it with the default C172. Same weather, same aircraft, changed 4 settings in the flight model, and there was a different amount of "throwing around" in the air.So it is entirely possible that it is the developers fault for the aircraft to be so bumpy when hit with turbulence.

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The turbulence I got today flying the 737-800 from EADT with Real Weather was something that would make people cry if that really happened. Maybe it's a matter of telling developers how to correct model these settings in order to be more realistic, most don't seem to know how to use it correctly

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I also believe the turbulence in X-Plane feels like it is too strong.There are two facts compounding this problem:A.) A wind of 20G30 isn´t always the same. Sometimes these gusts come fast and hard, sometimes it is more of a gentle up and down. The frequency is important (remember, I am talking about wind, here! :( )I have been in fairly calm winds that were really bumpy, and I have been in some smooth and steady 30kts winds on landing (usually depends also on the terrain around the airport.I think X-Plane just assumes the worst case, which is quite rare in real life (fortunately). I have done a landing in Bilbao, Spain with a 30kt crosswind coming over that mountain ridge (RWY30) and it was X-Plane-like Nail%20Biting.gif .B.) In real life your head will compensate a lot of the pitching, rolling and yawing. Keeping your head level is instinctive behaviour and faster than most turbulence and gusts. This is something that doesn´t happen when you look at your computer screen. Especially with short and rapid gusts the airplane tends to oscillate around the desired pitch, roll and bank, and you can just let it ride to a certain degree with subtle inputs to stay on the desired flightpath. Let her buck a little, if you will...There is also the instinctive input to controls when you "feel" the acceleration of the gust - in any simulator you have to wait until your eyes tell you : "ooops, you are banking!" - then work the stick to counter that.Jan
Thanks, you've done a very good analysis of the phenomenon. I've not seen often someone mention the fact that in a simulator, your eyes and head are "fixed", thus cannot compensate for the movements of the aircraft, as in real life. And all the other factors you mention.

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The head motion however does not explain sliding off a runway with brakes on, blowing backwards,or the aircraft becoming uncontrollable in what I would call fairly normal winds/tubulence.

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The sliding on the runway is most probably caused by the ground friction model. That's another long standing problem.I like Janov's analysis because he explains every aspect of it. And while the effect is in the "possible" realm, he still aknowledges that it's extreme.

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Carenado F33 on the apron. Winds: 12 mph. Parking brakes set, engines not running.The wind turns the plane slowly around its axis.That's just ridiculous. They HAVE to fix that (and I have been told the F33 is one of the most well behaved planes in XPlane when it coes to turbulences).

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