[aerohead]

Originally Posted by elhigh

No, but it certainly is telling - it had a much reduced frontal area, and yet displayed much greater drag.

An equally telling display, I think, would be to build this same rig and test three shapes: a square, add a rounded nose to the square for a bullet shape, then add a proper tail to the bullet to create an airfoil. That would keep the frontal area constant.

If you can find a copy of Hoerner's 'Aerodynamic Drag' you'll find all those numbers.