 Mobile guns had nine; the difference was that the static gun needed two men to load the shell, as the gun was too high for the method used with the mobiles, where a gunner punched the shell into the breach.The guns were located in revetments built to trunnion height and laid out in a shallow arc of about 90 degrees close to and easily seen from the Command Post.At the end of World War II all static guns were removed and only the mobile versions retained.