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| HANDBOOK OF ENEMY AMMUNITION |
| PAMPHLET No. 6 |
| GERMAN GRENADES AND AMMUNITION FOR GUNS, HOWITZERS AND MORTAR |
| GERMAN, FUZE, TIME, MECHANICAL, S/30 |
| (Zeitzünder S/30 or Zt.Z. S/30) |
| (Fig. 6) |
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The fuze approximate to the principle of design of the British No. 207 fuze and included the bridge device for muzzle safety which prevents the possibility of the hand rising until it has been rotated clear of the bridge. This movement takes approximately one second of time. The maximum time of running is approximately 30 seconds. The weight of the complete fuze is 13 oz., and its overall length 4.4 inches. |
| The main points of difference in construction from the No. 207 fuze are:– |
| (a) |
Apart from the steel screwed collar the fuze is made of aluminium or aluminium alloy. |
| (b) | The base piece is not graduated for setting. |
| (c) |
The tensioning (approx. 400 inch oz.) is adjusted by jamming of the waved wire spring between the screwed ring and a flange round the base of the cap. |
| (d) |
The dome with its hand race is inserted in the cap and locked by four lugs so that it turns with cap when turned for setting. |
| (e) |
Instead of a locking ring to prevent independent rotation of the dome relative to the base piece and mechanism in flight, there are two taper plungers with knife-edge projections which lock the dome by set back on acceleration. |
| (f) | There is no trigger safety catch. |
| (g) | The centrifugal safety catch does not include the locking step. |
| (h) |
The striker has a pyramid-shaped point. The cam collar rests on the safety step of the centrifugal safety catch. |
| Fig. 6 |
| German Mechanical Time Fuze S/30, Zeit Zünder S/30. |
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