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| BRITISH EXPLOSIVE ORDNANCE |
| Part 1 - Chapter 3 |
| General Purpose Bombs |
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G.P. 40-lb., Parachute, Mks I, II and III (Service) |
| Data |
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Fuzing |
Nose Pistol No. 33 Mk I |
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Color markings |
Dark green over-all; ½-in. red band 1 in. from nose; 1-in light. green band 5½ in. from nose |
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Over-all length |
27.25 in. |
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Body length |
15.90 in. |
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Body diameter |
Mk I 5.01 in; Mks II and III 5.06 in. |
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Wall thickness |
0.47 in. |
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Tail length |
11.4 in. |
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Tail width |
4.88 in. |
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Total weight |
38.5 lb. (Mk III) |
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Charge/weight ratio |
17% |
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Body Construction: This bomb has a cast-steel body, the nose end of which is fitted with an exploder container screwed and cemented in position, and locked by a locking screw. The exploder container is threaded to take the pistol. The rear end of bomb body is closed and reduced in diameter to form a spigot with a central boss, which is drilled and tapped to receive an eyebolt. The parachute tail unit is secured to the body by means of the eyebolt. |
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Tail Construction: The parachute tail unit consists of a cylindrical strut attached to the rear end of a tail tube by four fins. The parachute is packed in a fabric cylinder, which is closed at its rear end and fits inside the tail tube. The rear end of the fabric cy-linder is connected by pilot lanyards to a flanged cover which fits loosely in the cylindri-cal strut and is retained in position to close the rear end of the tube by means of a wire transit clip. |
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Suspension |
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Mk I – Normally carried 6 in the 250-lb. Small Bomb Container, although a limited num-ber have a single suspension lug. |
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Mk II – Normally carried 6 in the 250-lb. Small Bomb Container; but may be suspended by a band around the body. |
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MK III – A single lug is welded to the body for use when carrying on the Light Series bomb carrier. Can be loaded 6 into 250-lb. Small Bomb Container. |
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Explosive Components |
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Detonator – (See Part 2, chap. 4 Detonators.) |
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Exploders – TNT and C.E. retained by a waxed felt washer. |
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Filling – Mk I, 6.3 lb. Amatol 80/20; Mk II, 6.5 lb. TNT; Mk III, 6.5 lb. Amatol 60/40. |
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Remarks: This bomb is ussually used as a fragmentation bomb, and is identical to the 20-lb. parachute fragmentation bomb except for size. |
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Figure 8 – G.P. 40-lb. Bomb Mk III (Parachute) |
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