I gave it a try but getting the 60% crash despite that I only added the planes which are in fact in DBW.1916.
After a few attempts I've found that a classfile caused the crash in the Rolland D.II folder of the arms upgrade. (D767974CFD948F78). Now I see that this was for a different slot which is not in DBW.1916 because of mission compatibility.
I've also found that the The Fokker Dr.1 classfile causes mid air freezing of AI planes + the Fokker D.VI classfiles indeed will cause a 60% ctd.
Only these will work in DBW.1916:
AEG-CIV
Albatros DIII
Albatros DVa
Aviatik(il)
Aviatik(multi1)
BE2c
CaproniCA32
CaproniCA33
Dirigibile_M
Fokker EIII
Fokker DVIII
Lohner_L
Macchi_L1
Oeffag DIII
Se5
Se5A
Snipe
SPAD-7(Multi1)
Zeppelin_M
Zeppelin_P
The ones which had to be removed / reasons:
CaproniCA42 /
no slot yet, not in dbw.1916 solved!
Fokker DVI / ctd
Fokker DVII / unavailable/wip
FokkerDr1 / mid air freezing
FriedrichshafenG.III / different slot, not in dbw.1916
Nieuport 17 17Bis 23 IV / unavailable/wip
Nieuport11 / different slot, not in dbw.1916
Roland_DII / different slot, not in dbw.1916
I hope this helps but I also made a DBW.1916 compatible version, only 5Mb compressed:
http://www.vpmedia.eu/il2/zip/DBW1916_weapons_patch_v2.7zI havent edited the weapons_ru.properties yet, this will be updated later with it.