Cooper bombs

The Cooper bomb was a British 20 pound bomb used extensively in World War I, it was the first high explosive bomb to be adapted by the Royal Flying Corps.

Design
The bomb was 24 lb in weight, of which 20 lb was the bomb casing and 4 lb was an explosive charge of Amatol. The main body, being 5/16 in thick, was made of cast iron, steel or semisteel and the after body is made of wood and the fins sheet steel.

List of aircraft that used the Cooper bomb

 * Royal Aircraft Factory S.E.5
 * Bristol F.2 Fighter
 * Airco DH.4
 * Sopwith Camel
 * Royal Aircraft Factory F.E.2