1953’de ilk üretim modeli tamamlanıp teslim edildi. 12 yıllık hizmetten sonra son Valiant 1965 Ocak ayında emekliye ayrıldı.

It was one of three V bombers of RAF and it was designed in response to the same specification that also eventually produced the Avro Vulcan and Handley page Victor. Vickers had been working on jet bomber designs since 1944 but with little interest from the government. With the end of the Second World War interest in a jet bomber was awakened. The specification issued by the Ministry of Supply called for a bomber capable of carrying a 10,000 lb bomb, travelling at 500 knots and at 50,000 ft, with a range of over 3,300 nautical miles. Vickers had a design that fell short of satisifying this specification and when Avro and Handley Page made submissions that satisfied it, the Vickers project looked doomed to be a paper aeroplane only. However, Vickers fought with the government for the chance to build her design, arguing that it was simpler and less likely to suffer failure or delay when compared with the riskier Avro and Handley Page designs. He succeeded, and the Vickers Type 660 was allowed to proceed, with a new specification being written around it (B.9/48) and issued in July 1948.

Design work had  begun in April of that year and by February 1949 the Ministry of Supply ordered two prototypes. Two years later the Ministry felt confident enough to allow Vickers to proceed with the manufacture of 25 production aircraft; by April 1951 the order was official placed. The first type 660, WB210, flew on May 18,1951.

In 1953, the first production Valiant B.1 had been completed. After serving for a period of 12 years the last Valiant retired in January 1965.