VictorFarbau released his VFTCAS - Terrain Collision Avoidance System addon.
Big name, small addon. I was getting annoyed with the amount of dead choppers in forests, groves and hills that were lying there for no other reason than pilot stupidity. Since I was tired of missing out on half of the choppers during my missions I wrote this small addon. It simulates a primitive terrain scanning radar that just scans the terrain level ahead and adjusts the vertical lift of the chopper to maintain a minimum flightlevel of 35m (min height to avoid treetops).
The VFTCAS Addon
* Just goes into your addons folder, no modfolder required * Requires Extended Eventhandlers for Arma II (part of the CBA project) * Automatically starts on all choppers * Only AI pilots are supported (will quit on human player) * Will quit if the chopper is damaged (> 0.2) or destroyed * Can probably not intercept a head-on collision with a wall * Will only look forward and not to the sides. Thus, strafing into treetops can still happen * Pauses on positive or negative speeds smaller then 30 kmh to allow landing and extractions
Enough said - take it or leave it. Works well for me and reduces my blood pressure during chopper missions