Well about my scale, it's a sliding scale, sort of like the Mercator Map. The higher you go up in lattitute, the bigger the land seems to account for the curve in the world as represented on a flat map. Its the opposite for my planes. The bigger the plane, the smaller the scale is pixel/meter. And if you notice I use different scales for fighters and bomber sized planes. Some of the stuff I had to fudge on like the B-2 is acutally really short but if I used the figher scale for it, the wings would expand past the frame. There is a bottom limit of around 55 pixels in length and an upper limit of the B-36 and An-225.
I hope I'm not insulting your intelligence when I write the following:
How to scale planes:
1. Import the model and set everything up like textures.
2. Check length in XLS file.
3. Goto Camera view. 200x200 frame for small planes, 240x240 for large ones. Set camera zoom at 100%. Set ground plane to 45' (so it points East). Export image
4. Goto photoshop or gfx program. Find length of plane. I use photoshop so I can use the Ruler Guides. I select a rectangle from one guide to another, copy, paste into new file so the program can count the size. Length=x
5. compare X to Excel file and do a little math. I set zoom at 100% so its a simple matter to calculate new zoom settings for the proper length.
5a. I spin my fighters in the fidget. So I rotate my aircraft so it stands on its side. Point East. I change the height so there is no cropping at the top of the frame. Point South and check so that the rudder is not touching the top of the frame.
If that just insulted your intelligence, sorry. Sometimes people can get clueless sometimes.
If you'd like a divison of labor and to help speed things along, how about this:
I do the animations of the basic model. If you'd like, you can do the textures of the various versions. I send you the animation files.. you replace textures using an easy method... and you can animate the stuff with your own equipment.
Pros: vastly increased speed of production.
Cons: takes away creativity from you.