This is probably an issue with the CG in the aircraft.cfg.  It is located just after the "general" section of the .cfg.  Locate and adjust this, and you may get some results.

Or maybe not.

OK, open up the relevant aircraft.cfg file with Notepad or Wordpad and scroll down to the [contact_points] section.

Here's a bit from one of my Mike Stone Airbuses

[contact_points]
point.0= 1.000, 38.000, 0.000, , 1181.100, 0.000, 1.250, 55.920, 1.000, 1.000, 0.900, 4.000, 4.000, 0.000, 0.000, 0.000
point.1= 1.000, -5.000, -11.600, , 1574.800, 1.000, 2.000, 0.000, 1.000, 1.000, 0.900, 7.000, 7.000, 2.000, 0.000, 0.000
point.2= 1.000, -5.000, 11.600, , 1574.800, 2.000, 2.000, 0.000, 1.000, 1.000, 0.900, 7.000, 7.000, 3.000, 0.000, 0.000

point.0 is the nose gear and points.1 and .2 are the main gear wheels. The fourth entry on each line is the position of the contact point below the aicraft's reference point. Increase the number, the plane will go 'higher' above the ground, decrease it and the plane will go 'lower'. Mostly I think you want the plane to sit just under the surface so the tyres look flattened by the weight of the aircraft.

BTW, here's something else you might like to know.

At the bottom of [contact_points] you have these 2 lines

static_pitch= 0.620
static_cg_height=

The figure shown in blue is the plane's 'start' position when you start the program or load that scenery. If it is too big, when the scenery finishes loading the plane 'crashes' to the ground. If it is too small, the plane starts with it's wheels under the ground and 'pops up'. It's amazing how many designers get the figures wrong and you need to adjust them.

Hope this helps.

Roger

You're very welcome


This was the very first question I asked when I joined the forum a while ago. Calb was the guy who kindly gave me the answer then and I went on to learn a lot more about editing the cfg (and air) file as a result.

Glad to be able to help