British Bomb, 250 lb IB, Mk 1, Mk 2
The bomb has a cylindrical body with a hemispherical nose and parallel sides. An ejector-charge container is screwed and cemented into the nose and takes the nose fuze. The tail consists of a tail cone and a cylindrical Strut attached to the cone by four fins. The after end of the body is closed by a tail plate, which is lightly secured to the body.
The bomb is suspended by a single suspension lug.
This bomb was intended primarily for attacking forested areas, and can be dropped from heights up to 3,000 feet.