Weird. I have DBW 1.6 and it works. Just put in my mods folder and added the Air.ini entry...
...IL-2 Sturmovik 1946\#DBW\STD\com\maddox\il2\objects
Air.ini:
Put them here...
* air.Placeholder
********************JETWAR air.Placeholder
**************************************** air.Placeholder
* air.Placeholder
F9F2_Panther air.F9F2 1 NOINFO usa01 SUMMER
F-80A air.F_80A 1 NOINFO usa01 SUMMER
F-80C air.F_80C 1 NOINFO usa01 SUMMER
F84G1_ThunderJet air.F84G1 1 NOINFO usa01 SUMMER
F84G2_ThunderJet air.F84G2 1 NOINFO usa01 SUMMER
F84G3_ThunderJet air.F84G3 1 NOINFO usa01 SUMMER
F-86A5 air.F_86A5 1 usa01 SUMMER
F-86E10 air.F_86E_10 NOINFO usa01 SUMMER
F-86F25E air.F_86F_25E 1 usa01 SUMMER
F-86F25L air.F_86F_25L 1 usa01 SUMMER
F-86F30 air.F_86F_30 NOINFO usa01 SUMMER
F-86F40 air.F_86F_40 NOINFO usa01 SUMMER
F-86K air.F_86K NOINFO usa01 SUMMER
SabreMk31 air.CAC_Sabre_Mk31 1 NOINFO usa01 SUMMER
SabreMk32 air.CAC_Sabre_Mk32 1 NOINFO usa01 SUMMER
F8A air.F8A 1 NOINFO usa01 SUMMER
FJ3M_Fury air.FJ_3M 1 NOINFO usa01 SUMMER
All above entries
symmetrically in the real air.ini, here it's porked as I copied it.
Works.
Epic era to get the first truly supersonic fighter. Kudos to Mario71!
I'll leave it untouched until it has a new FM and some sort of pit.
Keep up the good work, Mario..

Cheers
T.