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| U.S. EXPLOSIVE ORDNANCE |
| PART 1 - PROJECTILES, PROPELLANT, AND PROECTILE FUZES |
| Chapter 1 - Projectiles |
| Section 4 - 5-INCH PROJECTILES |
| 5-inch White Phosphorus Smoke Projectile |
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Guns used in |
5"/38 |
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Over-all length, inches |
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With nose fuze |
20.0 |
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Without nose fuze |
15.8 |
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Diameter of base, inches |
4.968 |
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Distance base to band, inches |
2.43 |
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Width of band, inches |
2.25 |
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Diameter at bourrelet, inches |
4.985 |
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Filling |
Expelling charge is black powder, flare, magnesium. |
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Weight of filling |
Expelling charge is 2.5 ounces |
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Weight of loaded projectile, pounds |
53.0 |
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Cartidge Case |
Mk 5 |
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Primer |
Mk 13 and all Mods |
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Fuzes |
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Nose |
Mk 63 Mod 0 (M.T.F.) |
| Mk 18 Mods 2, 3, and 4 (M.T.F.) | |
| Mk 50 and Mods (M.T.F.) | |
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Mk 29 Mod 3 (P.D.F.) |
| Mk 61 Mod 0 (M.T.F.) - for use with 1,200 f/s initial velocity reduced charge | |
| Mk 66 Mod 0 (P.D.F.) | |
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Projectile Body |
5-inch Illuminating Mk 30 Mods 1 - 8 |
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The projectile body, base plate, and expelling charge are the same as those for the 5-inch Illuminating Projectile Mk 30. |
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The canister holding the W.P. filled tubes is of 0.03-inch thick sheet steel and mea-sures 12.03 inches long by 3.9 inches in diameter. It is painted olive drab over all. Through the center of the canister is inserted a burster tube containing the ballistic bur-ster charge, with a black powder delay fitted to the upper end of the tube. The canister is divided into four sections internally, with each section containing 42 W.P. filled steel tubes 0.5 inch in diameter and 2.86 inches long, 168 tubes in all. The canister is filled through the base with molten W.P. and closed with two ½-inch pipe plugs. |
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Type of Filling |
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Expelling charge |
2 ounces black powder |
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Bursting charge |
14 grams Ballistite |
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Smoke filling |
7.06 pounds white phosphorus |
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The black powder expelling charge, ignited by the fuze, initiates the delay element at the upper end of the burster tube and forecs off the base plate, ejecting the canister rearward. The delay initiates the burster, which ruptures the canister and scatters the W.P. filled steel tubes. The smoke cloud thus formed is about 30 - 40 yards in diameter. The projectile combines screening, anti-personnel, and slight incendiary effect. |
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Figure 42. 5-inch White Phosphorus Projectile |
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