Preceded by:
G-class (1915)Succeeded by:
L-class (1917)Ship | Code | Builder | Laid | Launch | Comm | Decomm | Fate | ||
H1 | Canadian Vickers | 11/01/1915 | 01/04/1915 | 26/05/1915 | 07/03/1921 | Sold/Scrapped | |||
H2 | Canadian Vickers | 11/01/1915 | 01/04/1915 | 04/06/1915 | 07/03/1921 | Sold/Scrapped | |||
H3 † | Canadian Vickers | 11/01/1915 | 01/04/1915 | 03/06/1915 | 15/07/1916 | † | Loss by mine | ||
H4 | Canadian Vickers | 11/01/1915 | 01/04/1915 | 05/06/1915 | 30/11/1921 | Sold/Scrapped | |||
H5 † | Canadian Vickers | 11/01/1915 | 01/04/1915 | 06/1915 | 03/06/1918 | † | Loss by ramming | ||
H6 | Canadian Vickers | 14/01/1915 | 01/04/1915 | 09/06/1915 | 08/01/1916 | Transferred | |||
H7 | Canadian Vickers | 1915 | 19/05/1915 | 19/05/1915 | 11/1921 | Sold/Scrapped | |||
H8 | Canadian Vickers | 1915 | 19/05/1915 | 06/1915 | 29/11/1921 | Sold/Scrapped | |||
H9 | Canadian Vickers | 1915 | 22/05/1915 | 29/06/1915 | 30/11/1921 | Sold/Scrapped | |||
H10 † | Canadian Vickers | 09/02/1915 | 01/04/1915 | 29/06/1915 | 19/01/1918 | † | Loss, unknown cause | ||
H11 | Fore River | 1915 | 12/06/1915 | 04/1917 | 20/10/1920 | Sunk under tow | |||
H12 | Fore River | 1915 | 26/06/1915 | 04/1917 | 04/1920 | Sold/Scrapped | |||
H1 / Guacola | Fore River | 1915 | 02/07/1915 | 04/1917 | 1949 | Sold/Scrapped | |||
H14 | Fore River | 1915 | 03/07/1915 | 04/1917 | 07/02/1919 | Transferred | |||
H15 | Fore River | 1915 | 16/07/1915 | 04/1917 | 07/02/1919 | Transferred | |||
H2 / Tegualda | Fore River | 1915 | 26/07/1915 | 04/1917 | 1945 | Sold/Scrapped | |||
H3 / Rucumilla † | Fore River | 1915 | 26/07/1915 | 04/1917 | 02/06/1919 | † | Loss, unknown cause | ||
H4 / Guale | Fore River | 1915 | 14/08/1915 | 04/1917 | 1945 | Sold/Scrapped | |||
H5 / Quidora | Fore River | 1915 | 25/08/1915 | 04/1917 | 1945 | Sold/Scrapped | |||
H6 / Fresia | Fore River | 1915 | 27/08/1915 | 04/1917 | 1945 | Sold/Scrapped | |||
Improved H-class: | |||||||||
H21 | Vickers | 02/03/1917 | 20/10/1917 | 28/01/1918 | 13/07/1926 | Sold/Scrapped | |||
H22 | Vickers | 06/03/1917 | 14/11/1917 | 13/11/1918 | 19/02/1929 | Sold/Scrapped | |||
H23 | Vickers | 03/03/1917 | 29/01/1918 | 25/04/1918 | 04/05/1934 | Sold/Scrapped | |||
H24 | Vickers | 04/03/1917 | 14/11/1917 | 09/05/1918 | 04/05/1934 | Sold/Scrapped | |||
H25 | Vickers | 03/03/1917 | 27/04/1918 | 16/07/1918 | 19/02/1929 | Sold/Scrapped | |||
H26 | Vickers | 02/03/1917 | 15/11/1917 | 20/03/1918 | 30/08/1935 | Sold/Scrapped | |||
H27 | Vickers | 20/03/1917 | 25/09/1918 | 02/01/1919 | 08/1935 | Sold/Scrapped | |||
H28 | 28H | Vickers | 18/03/1917 | 12/03/1918 | 29/06/1918 | 27/07/1944 | Sold/Scrapped | ||
H29 † | Vickers | 19/03/1917 | 08/06/1918 | 14/09/1918 | 09/08/1926 | † | Loss, unknown cause | ||
H30 | Vickers | 18/03/1917 | 09/05/1918 | 19/10/1918 | 30/08/1935 | Sold/Scrapped | |||
H31 † | 31H | Vickers | 19/04/1917 | 16/11/1918 | 21/02/1919 | 24/12/1941 | † | Loss, unknown cause | |
H32 | 32H | Vickers | 20/04/1917 | 19/11/1918 | 27/05/1919 | 19/10/1944 | Sold/Scrapped | ||
H33 | 33H | Cammell Laird | 20/11/1917 | 24/08/1918 | 17/05/1919 | 19/05/1944 | Sold/Scrapped | ||
H34 | 34H | Cammell Laird | 20/11/1917 | 05/11/1918 | 10/09/1919 | 13/06/1945 | Sold/Scrapped | ||
H35 | Cammell Laird | 1917 | - | - | - | Cancelled | |||
H36 | Cammell Laird | 1917 | - | - | - | Cancelled | |||
H37 | Cammell Laird | 1917 | - | - | - | Cancelled | |||
H38 | Cammell Laird | 1917 | - | - | - | Cancelled | |||
H39 | Cammell Laird | 1917 | - | - | - | Cancelled | |||
H40 | Armstrong | 1917 | - | - | - | Cancelled | |||
H41 † | Armstrong | 17/09/1917 | 26/07/1918 | 01/11/1918 | 18/10/1919 | † | Loss in collision | ||
H42 † | Armstrong | 01/09/1917 | 21/10/1918 | 01/05/1919 | 23/03/1922 | † | Loss in collision | ||
H43 | 43H | Armstrong | 04/10/1917 | 03/02/1919 | 25/11/1919 | 20/09/1944 | Sold/Scrapped | ||
H44 | 44H | Armstrong | 10/10/1917 | 17/02/1919 | 15/04/1920 | 02/1945 | Sold/Scrapped | ||
H45 | Armstrong | 1917 | - | - | - | Cancelled | |||
H46 | Armstrong | 1917 | - | - | - | Cancelled | |||
H47 † | Beardmore | 20/11/1917 | 19/11/1918 | 25/02/1919 | 09/07/1929 | † | Loss in collision | ||
H48 | Beardmore | 30/11/1917 | 31/03/1919 | 23/06/1919 | 08/1935 | Sold/Scrapped | |||
H49 † | 49H | Beardmore | 21/01/1918 | 15/07/1919 | 25/10/1919 | 27/10/1940 | † | Loss by surface ship | |
H50 | 50H | Beardmore | 23/01/1918 | 25/10/1919 | 03/02/1920 | 13/06/1945 | Sold/Scrapped | ||
H51 | Pembroke DYd | 01/10/1917 | 15/11/1918 | 01/09/1919 | 06/06/1924 | Sold/Scrapped | |||
H52 | Pembroke DYd | 01/01/1918 | 31/03/1919 | 16/12/1919 | 09/11/1927 | Sold/Scrapped |
Ship | Code | Former | Code | Comm | Decomm | Fate | |||
CH14 | H14 | 01/04/1921 | 30/06/1922 | Sold/Scrapped | |||||
CH15 | H15 | 01/04/1921 | 30/06/1922 | Sold/Scrapped | |||||
O-8 | H6 | 04/05/1917 | 05/1940 | Returned, scrapped | |||||
U-D1 | (Unnamed) | 05/1940 | 23/11/1943 | Scuttled inactive |