type and the flat-sided funnels typical of Thornycroft. The large boiler room (two units) was aft with the single unit forward, the fore funnel therefore being narrower. This arrangement was transposed in the Thornycroft Modified W class. The V-class ships had twin torpedo tubes and those of the W-class triple units. The second pair had slightly more displacement and a guaranteed (by contract) speed of 36 knots compared with the 35 knots guaranteed for the first pair. Early in their careers the specified anti-aircraft gun, the QF 2 pounder, was replaced by a single QF 12 pdr 20 cwt Mark I weapon, on a platform between the after funnel and the forward torpedo tubes. All except Viscount, which became a long range escort, were modified to WAIR type fast anti-aircraft escorts. Their conversions were non-standard in that they carried a pair of QF 2 pdr Mark VIII guns on platforms amidships – en echelon in Woolston only – and that Viceroy retained a bank of torpedoes for some time. Ships Viceroy, built by John I. Thornycroft & Company Limited, Woolston, laid down 15 December 1916, launched 17 November 1917, completed 5 February 1918, sold for breaking up June 1948. Viscount, built by Thornycroft, laid down 20 December 1916, launched 29 December 1917, completed 25 March 1918, sold for breaking up 20 March 1945 but actually broken up in May 1947. Wolsey, built by Thornycroft, laid down 28 March 1917, launched 16 March 1918, completed 1 May 1918, sold for breaking up 4 March 1947. Woolston, built by Thornycroft, laid down 25 April 1917, launched 27 April 1918, completed 28 June 1918, sold for breaking up 18 February 1947. Thornycroft modified W class The Thornycroft Modified W class were a private design by Thornycroft based on the Thornycroft V and W class to Admiralty specifications. These two ships were ordered in January 1918, at the same time as the first batch of Modified W class. In these two ships, the position of the boiler rooms was reversed, with the two-boiler room forward and the single unit aft. As a result, the funnel arrangements were transposed, with the thick funnel forwards and the narrow funnel aft. In common with other Thornycroft designs, they had characteristic broad, flat-sided funnels. Like the Admiralty modified ships, the Thornycrofts were up-gunned with the BL 4.7 inch Mark I weapon, and they received triple banks of torpedo