I'm working on a jet design with a long nose and low aspect ratio wing. Think F-104. I'd like to approximate the effects of the long nose on the neutral point. Can anyone suggest a resource? I've built a small cg glider and get a NP of about 21% mac. I've attempted to perform traditional np calculations and incorporate estimates of fuselage effects, but my makeshift calculations yield an np much further forward than than I'm seeing on the glider.

Thanks for any assistance.