The shell is fired from the 7.5 cm recoilless airborne gun (7,5 cm L.G. 40). The stream-lined shell is fitted with an ogival impact cap which forms the head and carries the small direct action nose fuze A.Z. 38. The single driving band is of iron and a cannelure is for-med behind it just above the streamlined portion of the base. The cap and shell are pain-ted the normal dark olive green and have the following distinguishing markings:–

"Hl/B" in black near the nose, indicating hollow charge.

"91" in black near the centre of the body, indicating the nature of bursting charge.

"FES" in white above the driving band and on the base.

This probably relates to the iron driving band.

The designation of the projectile and fuze are stencilled in black on the base of the shell.

The overall length of the fuzed shell is 12.2 inches and the weight, filled and fuzed, is 10 lb.

The body of the shell is comparatively thin walled with the cavity for the bursting charge tapered towards the base. An internal screwthread is formed at the front end for the as-sembly of the impact cap. The impact cap is more pointed than the dome-like cap of the shell for the 7.5 cm tank gun and has a thicker wall. A fuze hole is formed at the nose and two flats, for the assembling tool, are formed near the base of the cap. On the in-side of the cap a circumferential shoulder is formed to engage the adjusting washers, which are inserted above a steel washer covering the mouth of the cavity liner. The cone-shaped cavity liner is of steel with an aluminium tube fitted in a hole at the base. The tube extends from the liner to the gaine in the base of the shell cavity.

The bursting charge weighs 1 lb. 2 oz. 6 dr. and consists of three blocks of cyclonite/ wax 95/5. The upper block has the "hollow" cavity formed in its head and all three have a central channel in which the aluminium tube and the gaine are located. The charge is contained in a paper carton which is secured to the wall of the shell cavity by a bitumi-nous composition.

A description of the A.Z. 38 fuze is included in this pamphlet. Details of the gaine, which differs from the Zdlg. 40 used in other types of hollow charge shell, are not yet available.

The shell, it is estimated will perforate 60 mm homogeneous armour at 30 degrees to the normal or 70 mm at the normal.