'EW' (ii) was a British pair of special trials undertakings by the battleships Rodney and Howe, which operated from Loch Cairnbawn, the headquarters of the British midget submarine training programme, in north-western Scotland (22 September and 3 November 1942).

For the first of the two undertakings, which were designed to aid the training of midget submarine crews in the location of their target vessels (in particular the German battleship Tirpitz), the battleship Rodney had departed Scapa Flow in the Orkney islands group on 22 September group protected by the escort destroyers Blean, Penyland and Tanatside, and for the second Howe also departed Scape Flow with three escort destroyers, in this instance on 3 November.