stary how did you get a larger draw range, its the one frustration I have with strikefighter 2, all my terrain mods and stock " blur out" at too close a range with external views
first in your options.ini (in the main "mod" folder in your saved games folder)
change
ObjectsFade=TRUE
to
ObjectsFade=FALSE
then the distance at which TOD files (trees, houses) are disappearing is set by DetailMeshSize= in Flightengine.ini (you'll have to extract it from flightdata.cat if you haven't did so already) under these settings you use in graphics options (low, medium, high, unlimited)
DetailmeshSize= value is in kilometers, 10 or 12 works ok in my case