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| BRITISH EXPLOSIVE ORDNANCE |
| Part 1 - Chapter 12 |
| Smoke Bombs |
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Smoke 500-lb. Mk I (Service) |
| Data |
| Fuzing | Tail Pistol No. 30 Mk IV |
| Color markings | Dark green over-all, with a red band around the lower part of the body |
| Over-all length | 66.0 in. |
| Body diameter | 13.1 in. |
| Body length | 41.0 in. |
| Tail No. | No. 31 Mk I |
| Tail length | 28.0 in. |
| Tail width | 13.1 in. |
| Wall thickness | 3/16 in. |
| Total weight | 400 lb. (approx.) |
| Charge/weight ratio | 60% |
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Body Construction: This bomb consists of a cylindrical metal container with a hemis-pherical nose and tail piece welded at either end. Burster containers are located at each end of the bomb and, in the tail, to one side of the burster tube, is a filling hole closed with a threaded plug. A tail locating ring is welded around the after portion of the bomb body. |
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Although provision is made in the bomb for alternate nose or tail fuzing, the nose poc-ket is always closed with a plug, and only the tail pocket is employed. |
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Tail-Construction: The Tail No. 31 Mk I consists of a sheet-metal tail cone to which are riveted four vanes supported by a cylindrical metal strut. The tail is attached to the bomb by four spring clips, which engage the tail locating ring on the after end of the bomb body. Inside the tail cone, supporting the lower end of the reach rod, is located a diaphragm with four large holes to allow air passage. |
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Suspension: A single suspension lug is provided for carrying British planes, while two additional lugs are located 180° around from the first for American suspension. |
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Explosive Components: |
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Detonators – Detonator No. 55 Mk I |
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Burster – No. 1 Mk I, Gunpowder |
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Filling – White phosphorus, 270 lb. |
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Figure 49 - Smoke 500-lb. Bomb Mk I |
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