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| U.S. EXPLOSIVE ORDNANCE |
| PART 2 - ROCKET AND ROCKET FUZES |
| Chapter 6 - ROCKET FUZES |
| Section 5 - NAVY NOSE FUZES |
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Mk 100 Mods 0-2 |
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Rocket uses in |
5.0-inch Mk 7 S.S. |
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Functioning |
Instantaneous or 0.05 second-delay |
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Arming speed, r.p.m. |
1,500 - 2,000 |
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Body diameter, inches |
3.0 |
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Over-all length, inches |
4.15 |
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General: The Nose Fuze Mk 100 is similar to the Navy Point-Detonating Projectile Fuze Mk 29, with the addition of the delay plunger assembly from the Army Projectile Fuze M48A2. The fuze can function either super-quick or with a 0.05-second delay, ac-cording to the setting of the key on the ogive. This fuze can be used only in spin-stabili-zed rockets, as the fuze is armed by rotation or centrifugal force. |
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Description and operation: See Fuze M48A2, page 184. |
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Mk 100 Mod 1: It was concluded after testing that the delay of 0.05 second in the Mk 100 Mod 0 was too long for proper action of the round, and a 0.025-second delay was substituted. This modification was designated Mk 100 Mod 1. |
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Mk 100 Mod 2: Failures of the Mk 100 Mod 0 and Mod 1 were occasionally encounte-red, and as a remedy an additional relay detonator was placed underneath the delay as-sembly. This modification was designated Mk 100 Mod 2. |
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Figure 148. Navy Nose Fuze (Rocket) Mk 100 Type |
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