In your Prepar3D.cfg, do you have a value set for "yaw_damper_gain"? For example...

[autopilot]
yaw_damper_gain=1.000000

This should enable stable pedal turns with the AP on. You may need to increase or decrease the value depending on your model.

Hi Ray, That freeze command will only freeze the Lat/Lon/Alt on the object. It's more of a game-level setting. You might try toggling freeze on/off directly on the user's aircraft using both: "IS LATITUDE LONGITUDE FREEZE ON" and "IS ATTITUDE FREEZE ON" These will toggle freeze o...

Be sure the compiled .DLL is being loaded. The SDK has more detailed information on configuring add-ons, but basically the addon package needs to be either placed in you My Documents "Prepar3D v5 Add-ons" or specified in the C:\ProgramData\Lockheed Martin\Prepar3D v5\add-ons.cfg file. Hope...

Check out the Prepar3D Development (PDK) API in the SDK. It provides a lot of real-time synchronous interfaces. There are many samples included with the SDK as well.

Hope this helps,
Mike

Yes, this is exactly the type of thing the PDK API was created for. The API you will be most interested in is in ISimObject.h. The SimpleAirplane sample is a good place to start. With an implementation like this, you will define and implement all your own systems and data structures, and doesn't use...

Not sure. Maybe we're talking about to different things and I'm the one missing something. My suggestion was to utilize the SurfaceInfo's m_vNormal vector to extract the surface angle for a given latitude/longitude (In this context, "surface" = "terrain"). The normal vector is is...

If you're familiar with using the IPdk interfaces, ISurfaceQueryManagerV400::QuerySurfaceInformation will return the SurfaceInfo data structure which contains the surface normal. The SurfaceQueryManager is a service provided by IPdk::QueryService.

Hope this helps,
Mike

You can implement your mass property management any way you like within your solution. The IMassPropertiesV01 interface is not required, but can be used if you need to attach masses from another object. For example, the core P3D weapons system will use this interface to register weapon masses on you...

I think you may be requesting the wrong service. Try SID_DISManager instead of SID_SimObjectManager.

Yes, that is the most acceptable method.

This is the standard Euler angle convention we use. Pitch angle is defined as the angle above horizontal, which can only be a max of +/- 90 degrees. For example, an aircraft rotating over the top would go down (as you've noted), but bank angle would invert, e.g. 0 to 180 degrees. It would not make s...

On which aircraft are you seeing this? You may simply be seeing a gauge incorrectly implemented, as this does work properly in Prepar3D. Try it in a classic stock aircraft such as the Mooney Bravo, or look at the Indicated Airspeed displayed in the Shift+Z information.

Hope this helps,
Mike

Is your mixture set properly? Try turning on Auto Mixture under Options-Realism.

Hope this helps,
Mike

What is your text editor encoding set to? Try ANSI or UTF-8.

Mike

I suggest starting with compiling an exact copy of the pistonsample.asm to make sure your process is successful. Then add your changes one by one until you find the offending entry.