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| GERMAN EXPLOSIVE ORDNANCE - BOMBS, BOMB FUZES, ROCKET, LAND MINES, GRENADES AND IGNITER |
| Chapter 2 |
| GERMAN FUZES |
| (55) A, (55) A/M, (55) A* – ELECTRICAL IMPACT FUZE |
| DATA: |
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Bombs Used in: SD bombs, SBe bombs, or any bomb requiring instantaneous fuzing. (55) A/M used in SB 1000 H.E. parachute bomb. |
| Color: Dark grey or unpainted. |
| Material: Aluminum, sheet steel, and plastic. |
| Principal Markings: |
| El.A.Z. (55) A, Ele.A.Z. (55) A. |
| El.A.Z. (55) A*, El.A.Z. (55) A/M. |
| Secondary Markings: |
| cpp 1942 |
| cpp 1940 |
| cpp x with Ele.A.Z. (55) A |
| gyx a with El.A.Z. (55) A/M |
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DESCRIPTION. The fuze is of type 5 construction and has three firing circuits; two in-stantaneous circuits from A plunger, and one long delay circuit from the B plunger. (See fig. 146.) |
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SAFETY SWITCHING. Depression of either plunger switches off the opposite arming cir-cuits. |
| POSSIBLE ACTIONS: |
| 1. Instantaneous – by a normal trembler switcher. |
| 2. Instantaneous – by an external contact switch. |
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3. Long delay – 7.5 sec. for El.A.Z. (55) A; 9.0 sec. for El.A.Z. (55) A*; and 12.7 sec. for Ele.A.Z. (55) A. Not known for El.A.Z. (55) A/M. |
| ARMING TIMES: |
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Level Flight |
Diving
Flight (240 v.) |
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| 1. | Instantaneous (internal 4.2-sec. switch). | 2.2 sec. | |
| 2. | Instantaneous (external 4.9 - sec. switch). | 2.3 sec. | |
| 3. | Long delay 1.0 sec. | 0.55 sec. |
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Figure 146 – (55) A Electrical Impact Fuze |
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