A total of 1,013 Taurus powered Mark Is were produced and a number of changes were introduced into the line. The original curved perspex bomb aimers' nose panels were replaced by flat, non-distorting panels from the 10th production aircraft. Successive Marks of the Bristol Taurus engine were installed: starting with the Taurus III, the more reliable Taurus IIs were used whenever possible. Initially Beauforts with the Taurus II engines were designated Beaufort Mk.II, while those with other Taurus Marks continued to be Beaufort Mk.Is. Finally all Taurus-engined Beauforts became Mk.Is with the introduction of the Wasp-powered Beaufort Mk.II. The Taurus Mk.IIs were modified to Mk.IIa, which later became the Taurus Mk.VI. All of these versions produced . The final marks of Taurus engines used were the more powerful XII and XVIs. The Taurus engines drove de Havilland Type DH5/19 constant speed propellers.