The gaine is used in conjunction with the A.Z. 38 fuze in hollow charge shell and is situa-ted in the base of the shell cavity.

The metal body of the gaine is cylindrical with a flange at the base and a rounded top on which a short tubular neck is formed. The neck fits into the lower end of the central tube in the shell and has a broken irregular top. Two rows of holes, 4 in a row, are formed a-round the body and an internal screw-thread is formed at the base to receive the screw-ed closing plug. A circular paper label on the base of the gaine is marked "Zdlg. 40".

The interior of the rounded head, above the filling, is occupied by a suitably shaped washer of moulded bakelite. The filling consists of 78.5 grains of P.E.T.N./wax 87/13 co-loured pink. A cardboard disc is inserted beneath the filling and the top is covered by a transparent disc of viscose paper.

The detonator is fitted in a cavity formed in the top of the filling and consists of a flan-ged cylindrical shell containing 4.3 grains of lead azide topped with a thin layer of un-pressed lead styphnate. The weight of the lead styphnate is 0.2 grains. A disc of silk fabric of open weave is inserted above the lead styphnate and the mouth of the detona-tor is closed by a flanged aluminium cup. The cup has a central hole in the base.

The detonation of the gaine is brought about by the initiation of its detonator when the fuze functions. The thin layer of unpressed lead styphnate is intended to pick up from flash, but this may be a precaution only and does not exclude the possibility of the gaine detonator being initiated by pressure through the central tube in the shell when the fuze detonates.

Fig. 12