'SB' (ii) was the designation of Allied assault convoys for 'Husky' (i) (July 1943).

These were divided into 'SBF' fast, 'SBM' medium-speed and 'SBS' slow elements. The SBF.1 fast convoy from Sfax to Sicily on 8/10 July involved only British commissioned ships in the form of the 4,504-ton headquarters landing ship Largs and four infantry landing ships in the form of the 4,135-ton Prinses Beatrix, 4,135-ton Queen Emma, 3,244-ton Royal Scotsman and 3,244-ton Royal Ulsterman.