Autopilot problems

The autopilot is still not working properly – the bank/turn control especially – but a solution is in the works. There will be a maintenance release (4.1.1) at the end of this week which will take care of this as well as some other minor problems.

If you have other issues with 4.1 please post in the forum and I will do my best to get them fixed for the next release.

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IE 11 problems

If you are using Internet Explorer 11 you may have noticed that the logo banner is missing from the website. This is due to the “inventiveness” of Microsoft with every new release of IE, always a pleasure, thank you very much.

I will patch it up eventually. Meanwhile, consider using a W3C standards compliant browser such as Firefox or Chrome.


Well, that was easy enough to fix. I was using a CSS3 specific style to hide/show the banner and it appears IE11 is not fully CSS3 compliant. Oh well…

For those of you who may be interested, let me explain the problem and my solution:
For mobile browsers I hide all elements that have the “desktop” class:
.desktop { display:none; }
In desktop browsers they should be displayed – but since some elements are block and some inline, I used the “initial” attribute type:
.desktop { display:initial; }
…which does not work in IE11. So I added a fallback:
img.desktop { display:inline-block; display:initial; }
…which works fine, as the second “display:” overrides the first one in other browsers but is ignored by IE11.

You learn something new every day.

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Autopilot alt hold fix

The max/min G force condition for enabling Altitude Hold mode was reversed in 4.1. You can download a fix for this from the Download page.

Just replace the file “..\Airplanes\Saab_35_41\panel\” in your installation with the patched file and reload the aircraft. Easy as pie.

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Draken 4.1 released

The release version of Draken 4.1 for FSX is now available for download.

At the moment the download menu is only visible when you are logged in. This is a security measure while I am building up the new download system.

A repaint kit for 4.1 will be uploaded ASAP, I am working on it right now is now also available. There have been only a few small changes in the exterior texturing, so any repaints created for 4.0 will probably only need some minor tweaking.

If you have any problems with this release, please use the support forum. I you have no problems at all, tell your friends. 😉

Peace /Tom

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Download area down

The latest update of the plugin I use to manage downloads on the website took down the whole download system, just as I was preparing to upload the final 4.1 release.

I am truly sorry about this, but it is not me but the developers of the plugin who are to blame. They changed the plugin radically without informing their users, and now want us to pay to get the functionality back. I think this is really unprofessional and bad form. It’s like suddenly being asked for a ticket to get off the train.

I am working on replacing the plugin with something that works and has better support.

Please stay tuned


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About the Flight Manual

The Draken 4.1 Flight Manual is constantly updated to reflect the changes made during development, and is always valid for the latest beta version (including patches). The online version and the pdf version are usually in sync as they are generated from the same source files. However, you should be aware that if you downloaded a pdf manual some time ago it might contain information that has since been revised.

The most recent addition to the manual is a basic instruction for flying an approach using the PN-59 unit and the Barbro navaids. PN-59 navigation was broken in 4.1b3 (sorry) but has been fixed and will work perfectly in the released version – which is just a few days away. 🙂

Stay tuned /Tom

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Almost there


This is what I call a nice view in my bug tracker. One issue left to close, then I will consider 4.1 ready for release. And only 17 months overdue. 😉

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DX10 texture patch

Just uploaded yet another fix for DX10 compatibility: Three small bitmaps that I had forgotten to convert to DDS format, which means that they would not render properly with DX10. The new bitmaps can be found on the Download page.

Unzip the archive and copy the bitmaps to the folder “Saab_35_41b3\texture\” and reload the aircraft. You don’t have to delete the old bmp files, the dds files will automatically take priority.

These files are intended for 4.1b3, although they will also work with earlier versions.

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DX10 effects patch

A set of DX10-compatible light/smoke fx files for 4.1b3 are now available on the Download page. Just drop these files into your FSX Effects folder (overwriting the original fx) and restart FSX.

Please note that these fx are only intended for 4.1b3.

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DX10 and Draken

I only now realised that some people actually use the infamous “DX10 Preview” mode in FSX, which may explain some of the more mysterious bug reports I have received over the years. So I will try to sum up how this mode affects FSX in general, and Draken in particular, and then you can decide for yourself if you want to use it or not.

DX10 was never fully implemented in FSX, but a “technology preview” mode was thrown in to show what could be expected in future versions of MSFS. It has generally been recommended to keep this box unticked, as the results were erratic and could even crash the program. The user would typically see flickering texture maps, disappearing airport and aircraft lighting, etc.

Today there are third-party patches available that makes it possible to fly with DX10 mode enabled without too much trouble – although there are still some problems, mainly concerning lights and effects which function unpredictably or not at all.

I have been testing Draken in DX10 today and it works perfectly well except for the lights and smoke fx. These fx have now been updated to be DX10-compatible, and I will upload an update package ASAP. Some detail textures are also not working well with DX10, they will be replaced in the final release.

I do not support using Draken in DX10 Preview mode, but I will at least try my best to make it work as good as in DX9.

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