Type 91 20-cm (202-mm) (8-Inch) Armor Piercing20-cm (202-mm) (8-Inch) Cartridge Case (Semifixed)
Japanese Explosive Ordnance – Army Ammunition – Navy Ammunition
Chapter 5 - Section 1
NAVY PROJECTILES
(Ordinary Type 0) 20-cm/Short (202-mm) (8-Inch) High-Explosive
Weight of filled projectile (without fuze): 383.14 pounds.
Weight of empty projectile: 261.8 pounds.

Weight stamped on rotating band (sample): 119.0 kg. (varies with individual projectiles).

Length of projectile (without fuze): 36.61 inches.
Diameter at bourrelet: 7.95 inches (202 mm).
Distance from base to rotating band: 3.11 inches.
Width of rotating band:
Forward: 1.14 inches.
Space: 0.26 inch.
Aft: 1.14 inches.
Radius of ogive: No data.
Filling:
Trinitroanisole (type 91 explosive): 21.34 pounds.

The charge consists of two preformed blocks of Type 91 explosive (trinitroanisole) enclo-sed in a cloth bag.

Fuzing:
Type 91 mechanical time fuze.
Type 88 point detonating fuzes.
Weapon in which used: Mk 2 20-cm/50 cal. dual-purpose gun.

Figure 419 – 20-cm (Ordinary Type 0) High-Explosive.

Type 91 20-cm (202-mm) (8-Inch) Armor Piercing20-cm (202-mm) (8-Inch) Cartridge Case (Semifixed)