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A very large bomb standing vertically on display in the Museum entrance hall. A very large bomb standing vertically on display in the Museum entrance hall.

© Richard Connolly

© Richard Connolly

Grand Slam Bomb

Continuing Display

Kelham Island Museum

The Grand Slam Bomb is the heaviest bomb in the world, weighing 10 tonnes. They were produced by Vickers & Co, Sheffield, at their River Don Works during the Second World War.

 

It was designed by Sir Barnes Wallis, a British Aeronautical Engineer, who also created the Bouncing Bomb used in the Dambusters Raid. The Grand Slam Bomb was used by RAF Bomber Command against strategic targets such as bridges and viaducts, railways and U-boat shelters. Only 30 to 40 of the bombs were ever made and they were only used during 1945, the last year of the war.

The main portion of the Grand Slam Bomb, without its lightweight tail, can be seen at the museum.

Free Entry | Please Donate

Opening Times

Tue-Sat 10am-4pm | Sun 11am-4pm

We’re unable to run the River Don Engine on Sun 23 Jun due to a leak on the condensation pipe. We’re sorry if you were hoping to see it in action, our Historic Engineering team are working on the problem and we’ll have it back in steam as soon as possible.

The Upper Transport Gallery and Simplex Car display will be closed for events on Sat 15, Sat 22 & Sat 29 Jun.

Kelham Island Museum

Alma Street

Sheffield

S3 8RY

A very large bomb standing vertically on display in the Museum entrance hall.

Grand Slam Bomb

© Richard Connolly

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