L.C. 250-lb. Mks I, IB.V, II, and II* (Service)

Body Construction: The Bomb Mk II consists of a tubular steel body to which a he-mispherical nose is welded. A burster container is screwed and cemented into the nose. A tail plate is welded to the other end of the body and has a spigot through which pas-ses a charging hole. The charging hole is closed by a square-headed charging hole plug. The skirt of the tail plate is provided with two bayonet slots and a circular hole to retain the tail or transit base. The interior of the bomb is varnished, and the areas around the charging-hole plug and the burster container are coated with khaki-colored detector paint, which turns red when exposed to gas.

Tail Construction: The Tail No. 1 Mk I consists of a tail cone at the apex of which a circular strut is attached by fins. A skirt at the base of the tail cone has two fixed pins and a third pin, secured to a leaf spring, which engage the bayonet slots and the hole in the skirt of the tail.

Suspension: The bomb is fitted with a single suspension lug for carrying on a Univer-sal-type bomb carrier. It is also carried in U.S. aircraft using tier-type bomb stowage. The bomb may also be equipped with a trunnion band for carrying on dive bombers.

Explosive Components

Detonators – No. 52 Mk II (with Pistol No. 44)

Burster – Black powder

Filling – Chemical warfare agent

Remarks: The Bomb Mk II* is the same as the Mk II, only the burster container is welded in addition to being screwed and cemented in place. The Bomb Mk I differs from the Mk II in that the interior is unvarnished and the burster container is secured by wel-ding only. The Mk IB.V differs from the Mk II in that the burster container is welded on, and the tail plate has a slightly smaller internal diameter. The letters B.V. stand for the "bakelite varnish" which is applied internally to the walls of this bomb.

Figure 53 – L.C. 250-lb. Bomb Mk II