Hello Ryan, try turning antialiasing off. That should get rid of the gaps in the cockpit. However, you will see the "jaggies" in your graphics. I've decided live with the gaps to have better 3d world. I;m running with the dgVoodoo wrapper in 3dfx(glide) mode. My CA.ini settings are as follows and things look great:

[GRAPHICS]
XResVideoMode=640
YResVideoMode=480
GammaCorrection=6
FarClip=15780
MeshDetail=16
TerrainLighting=1
Shadows=1
ObjectDetail=15
DetailedHelicopters=1
ObjectLighting=1
CockpitRotorFx=1
LensFlareFx=1
TextureMap=8
Perspective=1
DrawSky=1
Dither=1
SmokeDensity=2
SmokeEffectFx=2
MaxBitmaps=5000
Trees=1
TreeDetail=9
TreeSamples=80000