ships were all ordered for the RN under the 1943 War Programme, of which thirty were completed. Fifty-one of these ships (15 from UK shipyards and 36 from Canadian shipyards) were cancelled late in 1943. Notes: (a) from the previous order placed for a Modified Flower-class corvette named Amaryllis. Two of those ordered 3 March 1943, three ordered 4 May 1943 and two ordered 10 July 1943 were all cancelled, as were all thirty-six ordered from Canadian shipyards on 15 March 1943. Royal Norwegian Navy HNoMS Tunsberg Castle – was loaned to Norwegian on 17 April 1944. On 12 December 1944, she hit a mine and sank. Cancelled Fifteen ships ordered for the Royal Navy from UK shipyards as part of the 1943 Programme were all cancelled on 31 October 1943: Caldecot Castle – ordered 19 January 1943 from John Brown & Company, Clydebank. Dover Castle – ordered 19 January 1943 from A. & J. Inglis, Glasgow. Dudley Castle – ordered 19 January 1943 from A. & J. Inglis, Glasgow. Bere Castle – ordered 23 January 1943 from John Brown & Company, Clydebank. Calshot Castle – ordered 23 January 1943 from John Brown & Company, Clydebank. Monmouth Castle (originally to have been Peel Castle) – ordered 23 January 1943 from John Lewis & Sons, Aberdeen. Rhuddlan Castle – ordered 23 January 1943 from John Crown & Sons, Sunderland. Thornbury Castle – ordered 23 January 1943 from Ferguson Brothers, Port Glasgow. Appleby Castle – ordered 3 March 1943 from Austin, at Sunderland. Tonbridge Castle – ordered 3 March 1943 from Austin, at Sunderland. Norwich Castle – ordered 4 May 1943 from John Brown & Company, Clydebank. Oswestry Castle – ordered 4 May 1943 from John Crown & Sons, Sunderland. Pendennis Castle – ordered 4 May 1943 from John Crown & Sons, Sunderland. Alton Castle – ordered 10 July 1943 from Fleming & Ferguson, Paisley. Warkworth Castle – ordered 10 July 1943 from Fleming & Ferguson, Paisley. The following ships were ordered on 15 March 1943 for the Royal Navy from Canadian shipyards for completion between May 1944 and June 1945, but were all cancelled in December 1943: Aydon Castle Barnwell Castle Beeston Castle Bodiam Castle Bolton Castle Bowes Castle Bramber Castle Bridgnorth Castle Brough Castle Canterbury Castle Carew Castle Chepstow Castle Chester Castle Christchurch Castle Clare Castle Clavering Castle Clitheroe Castle Clun Castle Colchester Castle Corfe Castle Cornet Castle Cowes Castle