Hi Donsol...thanks for your reply and you are spot on about AP not workig well at or near maximum speed....   Fro further researching this topic on line,  I prepared the following...the "fix" is from 2012...I tried it on the Evictor and it and  the speed issue seemed to have helped a lot...   "First: what is your altitude and airspeed? The autopilot will have a hard time maintaining the altitude if you are flying near-redline airspeed. Open the X-Plane folder - don't start X-Plane itself. Open Plane-Maker.
Click on Expert tab at top middle.
Select Artificial Stability.
Click on Autopilot at top middle.
Tick the box at top left: use custom autopilot constants (to undo changes untick this box, close window and save).
Make the changes as I suggested. 
Close window.
Click on File.
Choose Save.
Start X-Plane and see if the autopilot works now.    In the autopilot settings for X-Plane, change the parameters for the pitch-controller: special/set autopilot constants/use custom autopilot constants. Change to this:

pitch prediction: 2.4 seconds
pitch error for full elevator: 28
pitch response time: 6 seconds
pitch rate: 5 degrees/second."   The above categories have to be interpreted slightly for XP 11...   I assume no responsibility if the above does not work for anyone or causes any uninteended consequences...   Cheers, John H.

  Plugin Update : xEnviro Environment Engine v1.07 by xEnviro   We all love something that fundamentally changes everything about the way you fly and interact with your simulator, in the last year since the end of November 2016 there was not just a simple fundamental change, but a complete cosmic wholesale change of the X-Plane simulator, in first the release of X-Plane11, the update of WorldTraffic to version 3 (coming real soon now) and the release of the xEnviro Environment Engine or weather engine.   My very first impression of xEnviro was that it wasn't something that much very different, but a then I found it was simply extraordinary in the way it totally transformed your environment as you flew, it was and still is expensive. But I am a total convert in the way xEnviro gives you a complete and different feel to your flying. The release review is here: Plugin Review - xEnviro - X-Plane10 and 11 Environment Engine   But xEnviro wasn't without it's if minor faults. Some clouds were very noticeable in the (cloud) images went the wrong direction, a black line on the horizon is hard to ignore and the worse issue is that it crashed to desktop in if the xEnviro server was off line or you couldn't connect to it, and in the process X-Plane11 went final as well, so there was no update to X-Plane11 in its final release form which created build up framerate issues now and again. These issues actually were not totally overriding as a major issue and to the day to day running and in fact all could have been rectified quite easily with a just simple update.... but after nine months that update never came, until now with this release of v1.07   The developers had committed to totally reinventing the main engine from just a slideshow image effect, which did actually work very well except for one issue as noted above, to the more modern voxel 3d mapping or a voxel grid, that uses each pixel with a given colour value in a frame. The idea is to give an item and in this case a cloud to be rendered as a volume in 3d. Clever and a much more modern way of reproducing clouds and common now in game development but it took a long time to create and test for the X-Plane simulator.   xEnviro v1.07 First up there is a new start up panel, with a blacked out space to highlight the version number.     The slight build up of your weather is still there as xEnviro slowly builds up your current local weather picture...   Menus Main dropdown menus is still the same with just one extra new feature in the added "Weather Briefing"...     ...    the "Weather Briefing" gives you the current 20 local (close by) airport METAR conditions, you can refresh the data anytime to see the current conditions.     The "Settings" layout is changed as well from the X-Plane10 (below left) old style to the new X-Plane11 (below right) style which looks far more modern, but the layout is basically the same but there are a few important changes to note.     In the first column "Weather Settings" there is a new slider setting to cover "Maximum Surface Wind Speed", which is good because the surface wind speeds were a bit nasty and mostly too strong in v1.06, so you will mostly keep this low and I set it at 5kts.   Second column is "Cloud(s) Settings". The actual slider settings themselves have not changed. but the values have in "Shadow Range", "Clouds Brightness" and a slightly more (cloud) crossfade is required to a full 200%.     First the brightness. I found there was far more wider set of values in the cloud brightness and so it needed to go up a few %. Second item is more important. Cloud "Shadow Range' is much more touchy and in fact it has a far less range than before, so in heavy low cloud conditions with break though light or in say twilight and dusk conditions it gives you a heavier darker cover...   the change from great lighting (below left) to full darkness is very, very small and you are on the far lower end of the scale at 4 here, and few selections up and you are suddenly in complete darkness (below right).     There is a great need to get the "Shadow Range' right, because the effect is very good (below) when it is in it's full effect mode, with excellent light, shadows and colours on the landscape, but overall I feel the "Shadow Range' adjustment is in need of a more wider range to be more accurate.     Third Column in "Atmosphere Settings" has he most changes on the settings panel. Atmosphere has been split into two sliders now with  "Upper Atmosphere" and "Lower Atmosphere" and gone is the selections for Rain and Snow effects. Lightning effect is also gone and all are now set automatically in the system. 3d clouds passing effect tickbox has been moved up with the new "Remove Scenery Shadows under overcast" selection, and 2d rain drops and 3d landing light effects are now listed together. X-Plane related "Post Processing" and "Light Scattering" is not changed on the settings menu, but the underlying engine has been completely revised.   xEnviro v1.07 has been totally reworked to intergrate more with the X-Plane weather engine far better than in v1.06, in fact they didn't work together very well at all in the past. So I always had the "Post Processing" switched off, but now I have to have it on to get the same effect, same for light scattering, you will note a lot of the X-Plane11 misty look is not as strong with v1.07 but xEnviro compensates for that in its own engine, but at far distances it is now more noticeable as X-Plane builds up the scenery...   Here you can see the differences with the new scattering changes...     ...  with the "Light Scattering" slider down in 0% (above left) where I mostly had it positioned before, now you need it in the opposite position (above right) at 100% to clean up the horizon, and so in v1.07 all the Atmosphere Settings need to be readjusting to your liking and not left or set as in v1.06.   Fourth column are the sound settings and nothing has changed in there at all.   _________________________   First Impressions xEnviro v1.07 First off it is important to note that it is very hard to get a full overview in a short time of any environmental engine or plugin. atmospheric and weather conditions cover a huge range and it took me a fair period to really appreciate xEnviro and what it could really do. I have a huge backlog of memories and images that are simply outstanding in the way the plugin recreates your total environment, once used xEnviro is very hard to not be part of your X-Plane world, yes I am a huge fan, but I was also won over only in a period of time and not completely at first sight.   xEnviro is live. The environmental plugin shows you current METAR data as it is right now or your current time. If you are at your home airport or close by then X-Plane via xEnviro can dispaly what the weather conditions are right now. It can be spookily accurate as I have found by just looking out of my window or watching the conditions locally as they happen. Not perfect but pretty close. Note in v1.07 the conditions can now recreate such weather events like the Hurricanes off Florida U.S. lately and obviously many users jumped at the chance to check it out...  I myself checked out a local cyclone in February earlier this year and it was quite realistic. But currently and still in v1.07 you can you only have the live version?  A "History" version is still in the feature list and not part of the current line up, which will not allow you to recreate certain weather conditions, it should be on the now todo list not a long way down a feature list...   ...  another feature on the todo list is the MAC version?  in fact it is at the bottom of the todo list which is just plain stupid, who came up with this business plan? as not only are the developers neglecting a large percentage of X-Plane users but their significant income as well? That is just plain crazy business or just dumb stupid!   One item that has had attention was the issue that if the xEnviro server went into meltdown or you went offline from the server it caused an X-Plane simulator crash and usually in mid-flight. This was a nasty bug and was caused by the "Wininet exception handling code" and it has been addressed so we will see if it doesn't ruin another flight...   One of the fears of moving to the voxel 3d mapping was the effect on framerate. Laminar's "small puffs" but their heavy framerate load rears its ugly fears, but the voxel 3d mapping is a very different concept and framerate thankfully is very good, in fact I think it is improved and I checked it out in very heavy cloud conditions and it ran without any major framerate drops, but that is not to say a weak computer or extreme weather conditions can change the deal, but overall I was very impressed by the running of xEnviro in v1.07.   So let us look at some pretty pictures...   I took two flights with one around KRSW in South Florida and one flight from ENGM - Oslo to ENBR - Bergen in Norway, first KRSW.   xEnviro does do towering cumulus clouds really well and they do feel that they have more volume and thickness...     ...    but I didn't like the shelf like cloud formation that looked too wafer thin (arrowed below), I have seen these low thin stratus clouds before, but not this wafer thin, thin. It looks very effective though from above angles (below right), but not close up or head on.         Translucent effects are very good. One of the thing that really impresses in xEnviro is the great translucent feel between you and the ground and it still gives off a great realism look and feel.     The effects are very good with darker clouds and conditions, but in certain conditions it changes...     ...  in the darker areas as the aircraft become a little fluorescent and glow, it is highlighted sometimes if the lighting is very shadowy, I didn't see that in v1.06? But the aircraft here at Oslo standout far too bright and are far lighter in contrast against the darker airport.     Another point, is there is far more lines in the clouds and again noticeable only under certain cloud conditions...  
...  I'm not going to say these lines are a negative as I expect them to be fixed quickly in the next update, but they are more pronounced than in v1.06 of which there was a few even in there, but not this many?   In the positive the lighting can be sublimely beautiful, the lighting effects when full on are simply overwhelming. Note the excellent cloud shadows on the ground.     Flying from Oslo to Bergen and the more you fly in xEnviro the more you love it, and just enjoy those excellent formations. But I do feel the clouds do pop-up or pop! into view more suddenly than they just faded into view in the v1.06 past, that is very and even more like X-Plane weather than xEnviro there.     But overall v1.07 was highly impressive all along the route and the formation changes nicely from full overcast to scattered low cloud as I approached Bergen.       Mist, fog and rain was always really good in xEnviro and that has not changed in v1.07.     Rain conditions are well done, but to highlight then look at the rain falling at the other end of RWY35 but clear on the threshold (above right)...     ...  in time the rain moves north and turns into light mist, giving you a very realistic feel around the airport and far into the mountains.   Summary xEnviro Environment Engine is an exceptional addon to X-Plane to create a totally different feel and weather aspect to your flying. And overall this new v1.07 is excellent.   But there is a few raw notes that should have been easily cleared up at the beta stage, and should have not been passed over to the release version. v1.06 of xEnviro was on the whole a fully rounded product, but here there should have been a few more cleanups here before release.   There are too many lines in the clouds and the clouds pop up and disappear far to often in full view. Atmosphere Settings need more range and the darker effects send the aircraft fluorescent. Mostly I call all these items just fine tuning, but with a product this expensive they should have been refined earlier, I hope we don't have to wait long for a fix?   Overall this v1.07 is not a feature packed update, those items will however come sooner now the new voxel 3d mapping structure has been administered, that was a basic but fundamental core change, and all the benefits of that change will in time be more apparent.   xEnviro is a cornerstone of X-Plane that every user should have running, I admit it is not cheap, but ask any user that have laid down the cash if they think it was not worth the investment? Not any, and neither would any user that has once used xEnviro would go back to the default X-Plane weather engine because it is really night and day in the sheer difference the plugin creates when flying in X-Plane. I did note it took me a short while to see the benefits, but more so now than ever after ten months of use I couldn't or even won't run X-Plane without it running in the background, it is as important as that or with the sheer visual appeal and even the sheer enjoyment the plugin provides makes it simply a major requirement for X-Plane simulation flying...  it is that great or even brilliant.   ______________________________________________________________________
  Yes! the xEnviro Environment Engine by Commercial Simulation Systems LLC is Available from the X-Plane.Org Store here :
xEnviro   Price is US$69.90 Sorry this plugin is Windows only at this point, But Mac is coming!   Features xEnviro was created for X-Plane 10/X-Plane 11 as a result of multi-year effort from high-level engineers and programmers of Commercial Simulation Systems® LLC.
xEnviro replaces the default X-Plane environment, making it more realistic.     X-Environ Features:     Load real-time meteorological data with download interval from 5 up to 60 minutes taking into account following factors:  Wind direction and speed on ground and aloft, temperature, turbulence areas, icing areas and dangerous phenomena (thunderstorm& windshear)  Simulate visual effects of different types of precipitations and phenomena: rain showers, snow, fog;   Simulate visual raindrops effects on windshields both in 2D and 3D cockpits (if it's loaded in aircraft model);   Simulate in-cloud visual effects;   Simulate visual effects of shades and aircraft lightning in clouds (Strobe lights, beacon lights, navigation lights, landing lights)  Simulate landing lights screen effect during in-cloud and foggy flight;   Volumetric lights effect;   Simulate lightning on clouds surface from cities lights;  High-detailed cloud shades;   Custom cloud density and range;   Simulate realistic breaking action effect;   Display saturation, color gamma and cloud density, depending on weather conditions and  time of day with real-time changing (automatically) or manually.     Requirements Minimum X-Plane 10.45+ or X-Plane 11  + Stable Internet Connection with data Speed no less than 512Kps Windows 7/Vista/ 8/8.1/ 10 - Not Mac compatible at this time 1Gb VRAM     Recommended X-Plane 10.45+ or X-Plane 11  + Stable Internet Connection with data Speed no less than 51 Mbps Windows 7/Vista/ 8/8.1/ 10 - Not Mac compatible at this time 2Gb+ VRAM     Current version: 1.07 (last updated September 16th 2017)   Software Compatibility with other plugins xEnviro® software is incompatible with 3rd party software is used for weather loading, visual effects and other products that modify environmental or graphical components.     Correct operation of xEnviro® software is incompatible with the following products:  SkyMaxx Pro  RealWX Pro   MaxxFx   Real Weather Connector    SoundMaxx  FS GLOBAL REAL WEATHER  xNoaaWather  FlyWithLua RTH script   VenturaSky   Blu_fx  Any other scripts simulating weather conditions    Prior to install xEnviro® software it is recommended to deactivate these applications in Plugins menu in simulator or delete them (up to X-Plane user).   Change log : Version 1.07 (September 16th 2017)   Added - Weather Briefing window added. Displays METAR for 20 nearby stations. - General status dataref. - Dataref for the weather radar data (precipitation echo).   Changed - Maximum wind speed now set in Knots. - Wind distribution has been changed to improve ATC reliability. - Blending adjusted to remove visible line of the ground mesh edge. - Internal representation of the weather is now based on voxel arrays. - Atmosphere colors adjusted to match X-Plane 11 light model. - Rain color and blending adjusted to match X-Plane 11 light model.   Removed - X-Plane implemented ball mark for the selected menu entry. Temporary * removed. - X-Plane fog cutoff slider removed.   Fixed - Water reflection for haze added. - Wininet exception handling code has been corrected. No more crashes hopefully. - Surface friction procedures amended to avoid spontaneous aircraft sliding.   _____________________________________________________________________________________   Update Review by Stephen Dutton 19th September 2017 Copyright©2017: X-PlaneReviews   (Disclaimer. All images and text in this review are the work and property of X-PlaneReviews, no sharing or copy of the content is allowed without consent from the author as per copyright conditions)   Review System Specifications: Computer System: Windows  - Intel Core i7 6700K CPU 4.00GHz / 64bit - 16 Gb single 1067 Mhz DDR4 2133 - GeForce GTX 980/SSE2 - Samsung Evo 512gb SSD  Software:   - Windows 10 - X-Plane 11.02 Addons: Saitek x52 Pro system Joystick and Throttle : Sound - Bose  Soundlink Mini Plugins: WorldTraffic 3.0 Plugin - US$29.95 : XPRealistic Pro v1.0.9  effects US$19.95 Scenery or Aircraft - ENGM - Oslo Gardermoen by Aerosoft (X-Plane.OrgStore) US$24.95 - ENBR - Bergen Airport by Aerosoft (X-Plane.OrgStore) US$21.59 - Zibo Mod Boeing 737-800 - Default X-Plane11 aircraft by Laminar Research        

Question, how fast are you going. because of the design of the model, the most that I've found you can go is between 180 to 195 Knots (IAS). with the 1.1 ver. Also be aware for the wind. I found head wind, tail wind it doesn't matter, GS at 220 is about all it will go. Any thing more than that, behavior  a cures as you stated. Hope this will help Dion   PS: remember this is not a fast aircraft like the MU2. You have to treat her a bit different. 

Nice plane...good value....using XP-11 and cannot get the autopilot to hold altitude.... porpoises up and down...if anyone has a solution,  please let me know...wrote  X-Plane org about it and no reply..

I just bought this helicopter for X-Plane 11, great copter... but...c'mon guys.. you can do better than this on the download for payware !! All I got was all the folders & files in the zip. So I had to make my own Bell 412 folder. What? You couldn't make a folder & label it "Bell 412"? Some kid will buy this and think, "What am I supposed to do with all these files"?  Let's get with the program.

You should be able to go to your X-Plane.OrgStore account and download the XP11 version, because it should be on there? Just make sure you don't have a double wrapper in that the scenery is in a folder within a folder before inserting it into the custom folder, it is an easy mistake...    But I think the cause is that X-Plane uses LOWI as a default airport? Check your custom folder for "LOWI Demo Area" and either pull it out or make sure it is below your Payware scenery in the ini order, it could be nulling it out....  SD

Hi Stephen. I'm a fairly new X-Plane user and I've taken it a step further with the Oculus Rift headset...the best 3D experience ever, using the Flyinside app. The reason for my post on the site and topic is, the LOWI Innsbruck airport is just my favorite place to be. So I purchased and downloaded the scenery app from the X-Plane store. As simple as it sounded to install, I've clearly screwed something up. It says it was for XP10 but I'm using XP11. Now I can't even get the airport to come up at all. Perhaps something went wrong with my file order in Custom Scenery/Scenery Pack.ini iteration. I tried using my installation disk to reload the LOWI component but that hasn't been successful either. Now I'm just frustrated that I can't even use it. Is there anything you can suggest or provide...like what exactly needs to be in the file structure and how the Custom Scenery/Scenery Pack.ini folder should look like?? The Innsbruck installation seemed simple enough, but maybe it's an XP10 to XP11 issue. It should work. Now I just want to get it back to where it was when I installed it...to work at all. Just not knowing is a real drag. What can you suggest on how to do this to get the Innsbruck XP11 up and running?? I also purchased the Night Xp Switzerland scenery pack and not getting that to work either. Gotta be something or some way to get these two packs up and running. Please HELP!   I really would appreciate it. Regards, Steve  

News! - Now Released - Velocity V-Twin by Aerobask     "And now for something completely different!" Here is a preview of Aerobask's Velocity V-Twin, twin-pusher and canard aircraft.     You have to admit...  "its different"     Listed features with the Velocity include:   Realistic simulation of the Dynon SkyView and Garmin 750/650 – no default instruments used.
A master piece of art, full custom-coded.
Very usable with Touch Screen Operation and full mouse scroll wheel support. Flight model maked by X-Aerodynamics, according to the public data.
High quality 3D model with high resolution textures (4K), ambient occlusion, specular and normal mapping. Dedicated X-Plane 11 PBR rendering. FMOD Enhanced 3D system sounds. Accurate simulation of dual OPT-1 gauge. Simulated oxygen system. Fully functional virtual 3D cockpit, with a different interior design based on the selected livery. Windshield with reflections & rain effect. Configurable pilots, passengers and luggage. Volumetric propeller.   Aerosbask have already delivered two amazing and high quality aircraft this year with the Pipistrel Panthera v3 and the Eclipse 550NG and now the amazing Velocity V-Twin is going to join the fleet.   The excellent Dynon SkyView and built in Garmin 750/650 is included in the Velocity...     As is the excellent quality cabin...     Options include ground elements including GPU (Ground Power Unit) opening doors, luggage locker, flags, chocks and a weights and fuel set up menu.     Note this aircraft is available for X-Plane11 only   Released....  The Aerobask Velocity V-Twin is now available on the X-Plane.OrgStore...  see details below   _____________________________________________________________________________________       The Velocity V-Twin by Aerobask is NOW available! from the X-Plane.Org Store here :   Velocity V-Twin XP11   Your Price: US$34.95   Requirements X-Plane 11  Windows, Mac or Linux 2Gb VRAM Minimum. 4Gb+ VRAM Recommended   Full list of features! The Velocity V-Twin is a four-seat, retractable tricycle landing gear, composite construction aircraft with a twin-engined pusher configuration and a canard layout.   --> First High-Quality 'Canard' Aircraft for X-Plane --> Super High Detailed Aircraft in and out (Stunning visuals and comprehensive systems) --> Complete Dynamic Sound system using FMOD   Advanced Aeroback Avionics Suite Realistic simulation of the Dynon SkyView Garmin 750/650 Completely custom-coded, no default instruments used Very usable with Touch Screen Operation and full mouse scroll wheel support FMOD Enhanced 3D system sounds dedicated to X-Plane 11. Designed by Daniela RC Inside acoustic isolation, responds to open doors.  Engines: interior/exterior recordings of Lycomings IO-360, starter, shutdown, distance attenuation, cone angle response) Engines: prop angle effects and distance flange/doppler effect, no phasing effect between engines Equipment: armrest, battery, gyroscope, fuel pump, doors, gear motor, GPU start/stop, oxygen mask, all switches and buttons Environment: airflow, ground roll on hard and noisy surfaces, tire skid and impact, airframe shaking and stressing) Ambiance: exterior ambiance, rain interior/exterior with several degrees of intensity Alerts: gear up, minimums, fire bell, autopilot disconnect, stall warning  All sounds recorded at 44Khz 16bit stereo, correctly positioned in 3D, optimized to save space. Pop-Up menu  options, fuel & weight, ground thingies. Configurable passengers and luggage. High quality model High Resolution 3D Modeling High resolution textures (4K), ambient occlusion, specular, and dedicated PBR normal mapping for X-Plane 11. Accurate flight model according the public data maked by X-Aerodynamics. Fully functional virtual 3D cockpit, with a different interior design based on the selected livery. Simulated oxygen system - Windshield with reflections and rain effect - Volumetric propeller. Accurate simulation of dual OPT-1 gauge. Complete Avionics In-house coded GTN 750 and GTN 650 with touchscreen and scroll-wheel support: Exclusive multi-threaded and fps-friendly map and terrain display Map topography display based on actual X-Plane mesh data Terrain awareness display based on actual data Configurable map rendering TCAS with online flying support Airways, SID and STAR support (waypoint-based) Flight plan import/export compatible with stock XP10 fms format Built-in chart viewer - easily import yours COM support for PilotEdge (Connect/disconnect, TX/RX, COM1&2 volume control) COM awareness for IVAO and VATSIM (conneciton status) COM, NAV and XPNDR dialing pad Interactive checklists Resizable pop-ups VIP controller, in cabin and in popup for aircraft management Latest revision of Dynon Skyview with added scroll-wheel support NEW! Scroll-wheel support on lists, map, HDG, CRS, MDA, ALT, VVI, etc... Airways, SID and STAR support (waypoint-based) Weather map display on multiple screens and orientations TCAS with Traffic Advisory and Resolution Advisory Resizable pop-ups 7 High Resolution liveries (+ 1 low res)
Flight Manual + Dynon Skyview Manual + GTN manual and several documents included   ____________________________________________________________________________________   News Announcement by Stephen Dutton 16th September 2017 Copyright©2017: X-PlaneReviews   (Disclaimer. All images and text in this review are the work and property of X-PlaneReviews, no sharing or copy of the content is allowed without consent from the author as per copyright conditions)      

It is actually on the map as one of their class D covered airports, so yes! I am stoked! I will have a customizable home airport with real life ATC! Looking forward to it!

A big thanks to you Stephen. As a newcomer to X-Plane this site is my go-to place whenever my wallet feels like lightening itself. A great source for good, honest and to-the-point reviews, and the clickable images help enormously with those carefully considered what-to-buy-next decisions ... as I find myself doing just today, in fact.     

Hey,   I'm Peter, the designer of this airport. May be good news for you that my next airport is Riverside Municipal KRAL, which I think is actually inside that coverage zone, because it's close to Los Angeles so it should be.   Stephen, thank you for the great review by the way! Since this review has been published, version 1.2 is out, which corrects many issues, some even visible on the screenshots (like grass hanging over on taxiways, the mesh below the radar station, more variation on the police cars, alternate options for trees, etc). Technically my ground textures should overwrite Tom's ground textures, thankfully no one else has reported this. But I'm very happy that you've liked the airport overall!