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| U.S. EXPLOSIVE ORDNANCE |
| PART 1 - PROJECTILES, PROPELLANT, AND PROECTILE FUZES |
| Chapter 4 - PRIMERS AND TRACERS |
| Section 3 - TRACERS |
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Mk 10 Mod 0 (Obsolete) |
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Over-all length, inches |
2.9 |
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Diameter of head, inch |
0.93 |
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Starter pyrotechnic |
Magnesium powder, barium peroxide, and aluminum |
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Illuminant |
Magnesium powder, strontium nitrate, and ammonium perchlorate |
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Color |
Red |
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Projectiles used in |
40-mm H.E., H.E.-I., and B.L. |
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Operation: Set-back forces the primer carrier back, bending the ears on the stirrup spring and bringing the primer against the fixed anvil. The flash from the primer ignites the tracer starter, which initiates the tracer illuminant. |
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This tracer is self-destroying, containing an igniter pellet of 6 grains of black powder and a 5.7-gram self-destroying black-powder pellet. When the tracer illuminant has bur-ned through, the igniter pellet is fired, initiating the self-destroying element, which, in turn, explodes the projectile. |
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Remarks: The Tracer Mk 10 is being replaced by the Mk 11 in all assemblies. |
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Figure 112. Tracers (not proportionate size) |
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