Submarines

R class

4 ships

Type	Submarine
Displacement	1475 / 2030 BRT
Length	292.5 feet
Complement	6 officers + 47 men
Armament	1 4" gun 2 MG AA 8 21" torpedo tubes (6 bow, 2 stern)
Max speed	17.5 / 9 knots (surfaced/submerged)
Engines	Diesel / Electric, 2 shafts
Power	4400 / 1320 HP (surfaced/submerged)
Notes on class	This class was, like the P class also similar to the earlier O class, again larger in length and with further improvements, the 4 inch gun was mounted lower and was, unlike the P class not fitted with a shield.

Royal Navy (more on Royal Navy)
	HMS Rainbow (N 16)	Lost on 4 Oct 1940
	HMS Regent (N 41)	Lost on 18 Apr 1943
	HMS Regulus (i) (N 88)	Lost on 6 Dec 1940
	HMS Rover (N 62)
4 Submarines of the R class. 3 of them were lost.

The Admirals
Walter R. Borneman

Books dealing with this subject include:

Abandon Ship!, Newcomb, Richard F., 2000
Above Us the Waves, Warren, C.E.T. and Benson, James, 1971 (transl.)
Advance Force - Pearl Harbor, Burlingame, Burl, 2002
Air war over the nore, Jonathan Sutherland, 2010
Aircraft Versus Submarine, Price, Alfred, 1980 (transl.)
Airships vs. Submarines, Van Treuren, Richard G., 2009
Allied Submarine Attacks of World War Two, Rohwer, Jürgen, 1997
Allied Submarines, Watts, Anthony J., 1977
Allied Submarines of World War Two, Poolman, Kenneth, 1990 (transl.)
American Submarine War Patrol Reports: U.S.S. Wahoo (SS-238), McDaniel, J.T. (editor), 2003
American Submarines, Lenton, H.T., 1973
Assault on a Queen, Finney, Jack, 1959
Axis Submarines, Watts, Anthony J., 1977
Bacalao, McDaniel, J.T., 2004
Back from the Deep, LaVO, Carl, 1998