| Use: 20 mm projectiles. |
| Over-all length (with gaine): 1 9/32 inches. |
| Over-all length (without gaine): 3/4 inch. |
| Maximum diameter: 2 3/32 inches. |
| Threaded length: 3/16 inch. |
| Number of threads: 5. |
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Construction: This is a rotor type fuze that is unique in that
the firing pin instead of the detonator is housed in the rotor. The body
is of two-piece construction. In the upper part of the body is a
firing-pin extension. The rotor containing the firing pin is in the lower
part of the body. The rotor is held in place by two centrifugal detents.
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Operation: After firing, centrifugal force moves the detents out
and turns the rotor until the firing pin is aligned with the firing-pin
extension. The rotor is held in this position by centrifugal force, and on
impact the firing-pin extension drives the firing pin into the gaine.
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Figure 428 – 20-mm Model 2 Fuze. |
