Barnbow was Britain's top shell factory between 1914 and 1918, and by the end of the war on 11 November 1918, a total of 566,000 tons of ammunition had been shipped overseas.
[1] In the late 1930s, war was seen as a possibility, if not likely, and a sizeable rearmament programme began, probably also activated by the concern that a large proportion of the arsenal was becoming obsolete.
On 2 January 1985, vesting day, the twelve ROFs that still remained open, plus the Waltham Abbey South site, RSAF Enfield and three agency factories, became a UK government-owned company: Royal Ordnance plc.
In mid-1985 a target date of July 1986 was set; however, by June 1986 the government announced that flotation would not be possible and that it intended to sell the company privately.
The following problems were identified as barriers to a flotation: The problems associated with ROF Leeds were solved when Royal Ordnance agreed the sale of the factory and intellectual property rights of the Challenger tanks to Vickers plc on 4 October 1986, the final agreement was signed on 31 March 1987 valuing ROF Leeds at £15.2 million.