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| BRITISH EXPLOSIVE ORDNANCE |
| Part 1 - Chapter 17 |
| Obsolete Bombs |
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H.E. 20-lb. Mk I (Obsolete) |
| Data |
| Fuzing | Nose Pistol No. 16 |
| Color markings | Dark green over-all; ½-in. red band and 1-in. light green band around nose |
| Over-all length | 25 in. |
| Body length | 11 in. (approx. without tail adapter) |
| Body diameter | 5.175 in. |
| Tail length | 12 in. (approx.) with tail adapter |
| Tail width | 6 in. (approx.) |
| Total weight | 27 lb. (approx.) |
| Charge/weight ratio | 20% (appox.) |
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Body Construction: The bomb has a steel, semi-steel, or malleable-iron body, hollow and open at both ends, with the forward end threaded internally to receive the nose adapter, and the after end internally to take the tail adapter. The nose adapter has three different-sized threads, to take the detonator holder and the exploder container from the rear, and the pistol from the front. The flange of the nose adapter is externally threaded to receive a screw-on pistol cover. The tail adapter is tappered to conform to the rearward streamlining of the body, with a central bore threaded to receive the tail rod. |
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Tail Construction: The bomb has a wooden tail cone, conforming to the streamlined shape of the body. Two diametrical saw-cuts at right angles extend from the after end, cover a slightly greater length than that of the tail vanes, to acommodate the four sheet-metal tail vanes, which are made in integral pairs. The tail cone is bored axially to take the tail rod, and fits into the cavity in the tail adapter. |
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Suspension: A wrought-iron or mild steel suspension lug is riveted to the bomb body. |
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Explosive Components |
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Detonator – Non-delay, fulminate composition and 2 C.E. pellets |
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Exploder – 3 solid and 1 perforated C.E. pellets |
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Filling – 5 lb. (approx.) TNT |
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Remarks: This bomb was intended for attacking personnel, air strips, and road trans-ports. |
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Figure 67 - H.E. 20-lb. Bomb Mk I |
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