pacificplanes.dat problems

[viktor94]

I just tried to change the cruise speed of some aircraft and fix the F6F loadout in this file.
But in the game nothing seems to be changed.
I have written the speed values ​​into the left column of the three numbers after the planes name.
I also replaced all F6F entries with the correct loadouts from a previous thread in this forum.

So, what have I done wrong?