zoom rate
 

does anyone know how to change the zoom rate in the nav map

Look into:

SilentHunterIII\data\Menu\cfg\Maps.cfg

At the bottom there are 2 sections, one for the navmap and attack map, with a line starting with "ZoomLevels=". Those are the scale-steps in which the maps changes zoom.

thank you
 

thank you so very much

Don't you run the risk of adding instability by altering the zoom capabilities on the Nav map?

Twofold reason for asking:

1) I'm not familiar enough with the zoom config to say if it should/could be altered, and
2) In other games, altering the zoom capability has led to CTD's and instability issues.

In other words, Caveat Emptor

I don't know really. Modify at your own risk. I just know in what file those values are placed.