Shamal from GTA V with its HQ interior intact.

Vehicles.ide:
shamal, shamal, plane, SHAMAL, SHAMAL, VEH@HELICOPTER, NULL, 100, 999, 0.05, 0.05, 0.3,4, 1.5 ,0, noboot
Handling.dat:
SHAMAL 12000.0 10.0 75 0.0 0.0 -0.5 0.0 1 2.00 4.0 40.0 0.4 0.60 0.7 35.0 0.65 0.60 8.0 0.10 0.5 5.0 1.3 1.3 0.05 -0.14 0.0 0.5 1.2 0.8 0.8 1.5 3.0 45000 06004000 00400000 13
$ SHAMAL 0.9 2.0 0.0 -1.10 0.001 0.14 0.005 -0.002 0.0007 0.0020 0.0 0.06 1.0 1.0 0.05 0.05 0.5 0.5 0.5 0.5 0.5 0.5

Known issues:
Since IV doesn't have much support for planes, the door doesn't open at the right angle and it doesn't use the proper enter and exit animations, taxiing doesn't work either