Why there is a duck-like shape in this Tomahawk missile's nose? I see this shape in most Tomahawk images; however, not every Tomahawk's nose is shaped like this. If it is an aerodynamic feature, what is its common name?
I developed the shape for Convair back in the late 90's. It was called a chined nose and Carlo is right, there were no aero considerations for this shape. It was purely RCS.
It’s a feature on the latest variants of the Tomahawk to reduce its frontal radar cross section. It has no aerodynamic role for the weapon.