20-cm/Short (202-mm) (8-Inch) Complete Round (Semifixed)Type 91 20-cm (202-mm) (8-Inch) Armor-Piercing
Japanese Explosive Ordnance – Army Ammunition – Navy Ammunition
Chapter 5 - Section 1
NAVY PROJECTILES
(Ordinary Mk 1) 20-cm/Short (202-mm) (8-Inch) High-Explosive
Weight of filled projectile (without fuze): 111.0 pounds.
Weight of empty projectile: 72.50 pounds.

Weight stamped on rotating band (sample): 32.42 kg. (varies with individual projectiles).

Length of projectile (without fuze): 21.94 inches.
Diameter at bourrelet: 7.94 inches (201.5 mm).
Distance from base to rotating band: 1.0 inch.
Width of rotating band: 1.0 inch.
Filling:
Trinitroanisole (type 91 explosive): 28.50 pounds.

The charge consists of three blocks of explosive cast and sealed in a waxed paper con-tainer and sealed in the projectile with paraffin.

Fuzing:
Type 0 mechanical time fuze.
Type 88 Mod. 4 point detonating fuze.

Figure 417 – 20-cm Short (Ordinary Mk 1) High-Explosive.

20-cm/Short (202-mm) (8-Inch) Complete Round (Semifixed)Type 91 20-cm (202-mm) (8-Inch) Armor-Piercing