"H" Class Submarine (1915)

The Royal Navy's "H" Class Submarines were manufactured in America and Canada to a design similar to the American "H" class boats.

Overview of 44 vessels
Citations for this data available on individual ship pages
Name	Builder	Laid Down	Launched	Completed	Fate
H 1	Canadian Vickers		1915	mid 1915	Sold Mar, 1921
H 2	Canadian Vickers		1915	mid 1915	Sold 1921
H 3	Canadian Vickers		1915	mid 1915	Mined 15 Jul, 1916
H 4	Canadian Vickers		1915	mid 1915	Sold Nov, 1921
H 5	Canadian Vickers		1915	mid 1915	Collision 3 Jun, 1918
H 6	Canadian Vickers		1915	mid 1915	Interned 1916
H 7	Canadian Vickers		1915	mid 1915	Sold Nov, 1921
H 8	Canadian Vickers		1915	mid 1915	Sold Nov, 1921
H 9	Canadian Vickers		1915	mid 1915	Sold Nov, 1921
H 10	Canadian Vickers		1915	mid 1915	Lost 19 Jan, 1918
H 11	Fore River Company		1915	Apr, 1917	Sold 1921
H 12	Fore River Company		1915	Apr, 1917	Sold 1922
H 13	Fore River Company		1915	Apr, 1917	to Chile 3 Jul, 1917
H 14	Fore River Company		1915	Apr, 1917	to Canada Jun, 1914
H 15	Fore River Company		1915	Apr, 1917	to Canada Jun, 1919
H 16	Fore River Company		1915	Apr, 1917	to Chile 3 Jul, 1917
H 17	Fore River Company		1915	Apr, 1917	to Chile 3 Jul, 1917
H 18	Fore River Company		1915	Apr, 1917	to Chile 3 Jul, 1917
H 19	Fore River Company		1915	Apr, 1917	to Chile 3 Jul, 1917
H 20	Fore River Company		1915	Apr, 1917	to Chile 3 Jul, 1917
H 21	Vickers		20 Oct, 1917		Sold Jul, 1926
H 22	Vickers		14 Nov, 1917		Sold Feb, 1929
H 23	Vickers		29 Jan, 1918		Sold May, 1934
H 24	Vickers		14 Nov, 1917		Sold May, 1934
H 25	Vickers		27 Apr, 1918		Sold 1929
H 26	Vickers		15 Nov, 1917		Sold Apr, 1928
H 27	Vickers		25 Sep, 1918		Sold Aug, 1935
H 28	Vickers		12 Mar, 1918		Sold Sep, 1944
H 29	Vickers		8 Jun, 1918		Sold Aug, 1935
H 30	Vickers		9 May, 1918		Sold Aug, 1935
H 31	Vickers		16 Nov, 1918		Sunk 24 Dec, 1941
H 32	Vickers		19 Nov, 1918		Sold Oct, 1944
H 33	Cammell Laird		24 Aug, 1918		Sold 1944
H 34	Cammell Laird		5 Nov, 1918		Sold 1945
H 41	Armstrong		26 Jul, 1918		Cancelled 1918
H 42	Armstrong		21 Oct, 1918		Collision 23 Feb, 1922
H 43	Armstrong		3 Feb, 1919		Sold 1944
H 44	Armstrong		17 Feb, 1919		Sold 1944
H 47	Beardmore		19 Nov, 1918		Collision 9 Jul, 1929
H 48	Beardmore		31 Mar, 1919		Sold Aug, 1935
H 49	Beardmore		15 Jul, 1919		Sunk 27 Oct, 1940
H 50	Beardmore		25 Oct, 1919		Sold 1945
H 51	Pembroke Royal Dockyard		15 Nov, 1918		Sold Jun, 1924
H 52	Pembroke Royal Dockyard		31 Mar, 1919		Sold Nov, 1927

Characteristics^[1]
	Groups 1 & 2	Group 3
Length (feet)	150	164
Breadth (feet)	15.25	ditto
Displacement (tons)	364/434	440/500
Draft	12-ft 4-in	ditto
Speed (knots)	13/11	ditto

Radio

By war's end, all boats of "E" class and later were given 3 kilowatt Poulsen wireless sets, affording ranges of 200 miles submarine-to-submarine, and 300-400 miles between shore stations and submarines. Reception of shore stations of 400 miles was common, and high power shore stations could be received over 500-600 miles.^[2]