Topology without triangles?

I am modeling an aircraft and am having distortions around the windshield because of triangles in my mesh. I was wondering if there was a better way to avoid this? I’ve attached a picture and the Blender file if anyone has a better idea. Any help would be sincerely appreciated.

Sub%20Fuse

Fuselage.blend (407.4 KB)

may be with this tut here

happy bl