This 16 inch projectile is used by the U. S. Navy Battleships, a 16 inch naval gun. The projectile body is hollow one piece steel forging with a streamlined curve and a very thin metal rotating band usually filled with Explosive D (an explosive mixture that can withstand high heat and friction of the projectile passing through the long gun barrel).
The large-caliber guns were designed to fire either an armor-piercing projectile for anti-ship or a high-explosive projectile for use against unarmored targets and shore bombardment.
The yellow band designates the shell as a High Explosive round, with a Point Detonating (PD) Fuze. A black band designates: the shell is an anti-ship round, or Armor Piercing Round (AP). The AP rounds use a Base Detonating Fuzes (BD).
A blue band designates the shell as a Practice Round, Used for training and has a spotting charge to indicate where the projectile had impacted
The projectile is shipped to and stored at depot level with a nose protective cap Installed for safety purposes.
With installation of the MT (Mechanical Time) fuze, the projectile is ready to fire utilizing the standard, 8 bag black powder propelling charge loaded behind the projectile, and a suitable cannon primer in the breechblock of the 16 in naval gun. Below is a practice projectile with 6 powder bags, which can be reduced, depending on the range to the target. A maximum charge consisted of six silk bags, each filed with 110 lb. of black powder.
Tabulated Data:
Type --------------- HE : (Explosive D)
Weight -------------1,880 lbs.
Length ------------- 65.6 in.
Cannon used with ---- Naval Rifle, 16-inch/50
Projectile:
Body material------- Forged steel
Maximum range ----- 36,576 meters (23 miles)
Muzzle velocity ---- 822.96 mps (2,700 fps)