Hi
I added these Fokker VII files from DBW 1916 update v4 (UPDATED! 06.03.2016) to DoF:
0328D8B272B435B0
C82226945DDB0B76
C9B202A022E72398
CK2009
E59BB1EC3B017988
EC81EFAC428E325A
F8CC0DACD0E32544
FokkerD7_FM
And the twisting problem is now gone.

Some further testing would be good to check which file/files that fixed the problem.
Adding those class files might give other problems.
Report from classcheck:
#######################################
List of potentially conflicting classes
#######################################
###############################################################
List of simple doublon : classes with the same name and content
###############################################################
C9B202A022E72398:
.\0AIRCRAFT_Fokker_DVIIz\C9B202A022E72398
.\Classes-ObjectsWeapons\C9B202A022E72398
E59BB1EC3B017988:
.\0AIRCRAFT_Fokker_DVIIz\E59BB1EC3B017988
.\Classes-ObjectsWeapons\E59BB1EC3B017988
F8CC0DACD0E32544:
.\0AIRCRAFT_Fokker_DVIIz\F8CC0DACD0E32544
.\Classes-ObjectsWeapons\F8CC0DACD0E32544
C82226945DDB0B76:
.\0AIRCRAFT_Fokker_DVIIz\C82226945DDB0B76
.\Classes-ObjectsWeapons\C82226945DDB0B76
EC81EFAC428E325A:
.\0AIRCRAFT_Fokker_DVIIz\EC81EFAC428E325A
.\Classes-ObjectsWeapons\EC81EFAC428E325A
0328D8B272B435B0:
.\0AIRCRAFT_Fokker_DVIIz\0328D8B272B435B0
.\Classes-ObjectsWeapons\0328D8B272B435B0
The files I added can be downloaded here:
http://vonoben.free.fr/downloads/0AIRCRAFT_Fokker_DVII_Fix.zip<<Update>>:
Zip file updated: Unnecessary files removed and readme added.
Cheers
vonOben