Window Problem

I am trying to make a Cessna 185, which is a light aircraft. I modeled the fuselage fine, but I have been trying to figure out how to add the windows. The don’t line up with any vertices I have, so I can’t just change the vertex materials, and I want to use ray tracing so I can have some reflection. I tried using Boolean to cut holes, but with limited success. Does anyone have any ideas?

Thanks!

Hi. Have you tried subdividing it with the edge tools?
These tools allow you to subdivide your mesh right where you want
while keeping the contour of the object’s surface.

Here’s a page from the online docs explaning their use.
http://www.blender.org/modules/documentation/htmlI/x3225.html

You’ll probably have to play around with them 'till you find what works best so keep a finger near the U key.