Fig. 9

This fuze is used for air burst ranging. The body is made of duralumin with the clockwork movement in bronze. A number of these fuze have been recovered, but they have been very deformed so that it has not been possible to give full details of the mechanism. This seems to be approximately as follows:

Fig. 9

The clockwork movement is attached to the body of the fuze by three screws, arranged at intervals of 120°. It appears to resemble ckockwork fuzes used by the Germans in 1914-1918.

a pallet and scape wheel. The timing of the oscillation is controlled by a hair spring of 0.6 mm spring steel 15 cm long, which passes round the outside of the clockwork movement.

the scape wheel driven by a train of wheels with a tentooth pinion and 56-tooth wheel engaging a final wheel (40 teeth) fixed to the main spring drum.

the main spring, ratchet wheel (60 teeth), striker, safety catch, hand, etc.

By using the slots in the body and in the head of the fuze, the dome is turned until the fuze is set at the correct fuze length.

After the primer has been struck the flash is carried to a detonator which is probably the same as that in the percussion system.

The percussion system is below the clockwork movement. It was very broken in every case and consequently is only shown in the Fig. by dotted lines.

It consists of a safety mechanism of four centrifugal bolts of ordinary type and a deto-nator pellet which, on graze, is carried forward on the the striker which is fixed.

Some fuzes instead of being engraved Dopp.Z. S/60 s had the same marking with the "s" barred out. Factory markings, such as Rh.S. 1936 have been found.