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| GERMAN EXPLOSIVE ORDNANCE - BOMBS, BOMB FUZES, ROCKET, LAND MINES, GRENADES AND IGNITER |
| Chapter 2 |
| GERMAN FUZES |
| (25) (OBSOLETE); (25) A; (25) A*; (25) A** – ELECTRICAL IMPACT FUZE |
| DATA: |
| Bombs Used in: H.E. bombs. |
| Color: Dark grey. |
| Material: Aluminum. |
| Principal Markings: El. A.Z. (25); (25) A; (25) A*; (25) A**. |
| Secondary Markings: |
| Rh.S. 1939 | FC 1940 |
| Rh.S. 1940 | AC 1940 |
| Rh.S. 195-1940 | edr 1941 |
| AD 1940 | gyx 1941 |
| FC 1940 | dtf 1941 |
| AD 1941 | wft 1941 |
| 1940 | BC 1941 |
| AB 1940 | edr 1941 |
| BC 1940 |
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DESCRIPTION. The fuze has three firing circuits and is of type 2 construction. A screw in the head operates a switch which cuts out the short delay circuit leaving only the long delay under plunger B. (See fig. 140.) |
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SAFETY SWITCHING. Each plunger cuts off the oppostie arming circuit when depressed. |
| ARMING TIMES FOR (25): |
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Level Flight |
Diving
Flight (240 v.) |
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| 1. | Instantaneous. 10.0 - 15.5 sec. | 5.5 - 8.5 sec. | |
| 2. | 0.08 sec. delay. 10.0 - 15.3 sec. | 6.8 - 10.2 sec. | |
| 3. | 14-sec. delay. 0.8 - 1.3 sec. | 0.4 - 0.8 sec. |
| POSSIBLE ACTIONS FOR (25), OTHERS SIMILAR: |
| Switch Settings 1 | Switch Settings 2 | ||
| 1. | Instantaneous. | 1. | Instantaneous. |
| 2. | 0.08-sec. delay. | 2. | 0.08-sec delay cut off. |
| 3. | 14-sec. delay. | 3. | 14-sec. delay. |
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REMARKS. The (25) A differs from the (25) in that the 200 M resistor is reduced to 60 M. Arming time is about one-third. The 10,000-ohm resistance is omitted. The (25) A* differs from (25) A only in wiring connections. |
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Figure 140 – (25) Electrical Impact Fuze |
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