Triangular missiles trade packing claims for aerodynamic difficulty

What are the advantages and disadvantages of triangular missiles, and how close are they to adoption?

They may pack efficiently, but flight and integration problems make square or conventional bodies more likely, so widespread adoption does not appear close.

The proposed benefit is storage efficiency, especially when several weapons must fit inside a launch system. The panel doubts that the gain survives the aerodynamic and control problems created by a triangular body across many missile roles. Storm Shadow-related studies are mentioned as an example in which unusual shapes were considered but a more conventional box-like form prevailed. Because naval launch cells are already square, a square missile body may exploit available volume more simply than a triangle.