The M1400 airship is some 370+ feet long. And as one would expect, its tail fins are quite large. Following is a picture of one tail fin prior to final assembly. The fin structure consists of three components that, upon assembly, will reach to approximately 30-feet in height. The tail fin structure will be covered with a woven synthetic material prior to rigging on the M1400 hull. Also pictured is the leading edge of the M1400 tail fin. Unlike the main tail fin assemblies, the leading edge is composed of hardened carbon fiber, which provides enhanced structural support, aerodynamic efficiency, and strike protection for the tail fin.