Really?
You must have deleted the wrong files? Or something because it works! Has to, in that if the game has no *.ffe files to load it can not run those files. Especially wrt the 'shake' stuff, the 'force feedback' will default to a 'set' value that no longer changes with airspeed, as in your controls (joystick) gets stiffer the faster you go.
On that note here is the directory and corresponding files you will want to play with (delete, rename, remove, edit)
The default path
32bit OS -> C:\Program Files\Steam\SteamApps\common\il-2 sturmovik cliffs of dover\parts\core\FF
64bit OS -> C:\Program Files (x86)\Steam\SteamApps\common\il-2 sturmovik cliffs of dover\parts\core\FF
In there you will find the following *.ffe files
Code:
autocannon.ffe
bomb.ffe
machinegun.ffe
mortar.ffe
punch.ffe
shake.ffe
SPRING.FFE
As you can see, the descriptions of the files are pretty straight forward.. For example(s)
delete the 'machinegun.ffe' file if you don't want your stick to 'shake' when you fire the guns
delete the 'bomb.ffe' file if you don't want your stick to 'jerk once' when you drop a bomb
delete the 'shake.ffe' file if you don't want your stick to 'shake' when your engine is damaged
And so on
If your like me and you only want the force feedback (stick stiff when you go fast, stick loose when you go slow) than delete all the files except SPRING.FFE