Army 7-cm (75-mm) Complete RoundsType 90 7-cm (75-mm) H.E.-A.A. Long-Pointed Projectile
Japanese Explosive Ordnance – Army Ammunition – Navy Ammunition
Chapter 4 – Section 1
ARMY PROJECTILES
7-cm (75-mm) H.E.-A.A. Projectile

Note.– The drawing given here is based on a Japanese drwaing labelled only "Circularlay-ered projectile". LThe projectile is of apparent 75-mm size and the body appears to be made up of numerous steel rings bolted together with several bolts which are grooved at intervals to produce better fragmentation.

This projectile is believed to be the same referred to in other documents as "H.E.–A.A. Projectile" for the type 11th-year field A.A. gun. The following applies only if this pre-sumption is correct.

Weight of projectile, filled (fuzed): 6.60 kg. (14.52 pounds).
Filling: "ONA", a mixture of picric acid and dinitronaphthalene.
Fuzing: Type 10-year A.A. powder time fuze.
Weapons in which used: Type 11-year field A.A. gun.

Figure 247 – 7-cm High-Explosive Antiaircraft Projectile.

Army 7-cm (75-mm) Complete RoundsType 90 7-cm (75-mm) H.E.-A.A. Long-Pointed Projectile